how many grams is 1.25 moles of NaCl

Answers

Answer 1

Molar mass of NaCl:-

23+35.558.5g/mol

Now

Mass=Molar mass ×MolesMass=125(58.5)Mass=7312.5g

Related Questions

How many nitrate ions are in 2 mol of iron (II) nitrate

Answers

Answer:

Two

Explanation:

Nitrate has a charge of negative 1 and the Iron (II) tells us the iron in that formula has a charge of +2, so in order for the iron to have to equal positive two, there has to be two negative. Since on nitrate ion is -1, you need two to make -2.

explain any four effects caused due to exercise use chemical of chemical feritilizer on environment​

Answers

Excessive use of chemical fertilizers has led to several issues such as serious soil degradation, nitrogen leaching, soil compaction, reduction in soil organic matter, and loss of soil carbon.

Hope it helps :)

State the functional groups that undergo cracking and substitution reaction.

Answers

Unsaturated organic compounds with a carbon-to-carbon double bond and alkynes with a carbon-to-carbon triple bond, as well as aldehydes and ketones with a carbon-to-oxygen double bond, undergo addition reactions.

how many grams of hno3 would you need to prepare 5.5 l of this solution

Answers

8305 grams of HNO3 would be needed to prepare 5.5L of a solution. Details on how to calculate mass is found below.

How to calculate mass?

The mass of a substance in a solution can be calculated using the following formula:

Density = mass ÷ volume

According to this question, 5.5L of a HNO3 solution is given.

Density of HNO3 is 1.51 g/cm³

Volume of HNO3 = 5500mL

1.51 = mass/5500

mass = 8305g

Therefore, 8305 grams of HNO3 would be needed to prepare 5.5L of a solution.

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A teacher drops a bottle containing sodium chloride. The bottle breaks when it
hits the floor. The teacher sweeps up the mixture of sodium chloride and glass.
Describe how the teacher can obtain a pure, dry sample of sodium chloride from
the mixture.

Answers

The mixture of sodium chloride and broken glasses can be separated by dissolution, filtration, and evaporation respectively.

Separation of mixture

The mixture containing sodium chloride and broken glasses can be separated as follos:

First, by dissolving the mixture in water. The soluble sodium chloride will dissolve while the broken glasses will remain insoluble.

Filteration is carried out to filter off the broken glasses

The filtrate which is now a mixture of water and sodium chloride can then be heated to evaporate off the water and to obtain dry sodium chloride.

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Independent Assessment 1 Directions: Choose the correct concept about the occurrence of an earthquake and a volcanic eruption. Write only the letter of your answer in your activity notebook.
1. A. Tectonic earthquakes occur when rigid plates move because of a fault on the Earth's crust, while volcanic earthquakes occur when rigid plates move because of volcanism. B. Volcanic earthquakes occur when rigid plates move because of a fault on the Earth's crust, while tectonic earthquakes occur when rigid plates move because of volcanism.
2. A. Intensity measures the energy released at the source of the earthquake, while magnitude measures the strength of shaking produced by the earthquake at a certain location. B. Magnitude measures the energy released at the source of the earthquake, while intensity measures the strength of shaking produced by the earthquake at a certain location.
3. A. Seismogram is an instrument that measures the vibrations of the Earth during the shaking, while seismograph is a record of the ground motion at a measuring station as a function of time. B. Seismograph is an instrument that measures the vibrations of the Earth during the shaking, while seismogram is a record of the ground motion at a measuring station as a function of time. 4. A. Mount Mayon in Zambales erupted on June 1991 that its smoke and ashes reached the stratosphere. B. Mount Pinatubo in Zambales erupted on June 1991 that its smoke and ashes reached the stratosphere.
5. A. The violence of volcano eruption is determined by the ashes in the magma. B. The violence of volcano eruption is determined by the gases in the magma.
Pasagot nmn mga mare dyan.​

Answers

Volcanoes and earthquakes occur due to movement of the Earth's tectonic plates.

How volcanoes and earthquake occur?

Both volcanoes and earthquakes occur due to movement of the Earth's tectonic plates. They both occurs due to the heat and energy that is releasing from the Earth's core. Earthquakes can increase or fastens the volcanic eruptions through severe movement of tectonic plates.

Volcanoes eruption occurs when molten rock called magma rises to the surface. Magma is formed when the earth's mantle part melts due to higher temperature.

So we can conclude that volcanoes and earthquakes occur due to movement of the Earth's tectonic plates.

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(Science)
(Quarter 4)

Solve the puzzle game's to have 5 point's
(BEGIN)
( •O•)!?
| |
| |
| |______|________
|________|_____ |
| |
(FINISH)

(real question)

can you know why Sam is nosebleeding
_ ~
(> ㅍuㅍ)>​

Answers

Explanation:

because of blood pressure

5
Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.
Which of the following options would be best for making her model more like a plant cell?
A. Take the marble out of the bag.
B. Put the bag inside a clear plastic box.
c. Take the pinto beans out of the bag.
D. Put the bag inside a larger clear plastic bag.
Reset
Submit

Answers

The option that would be best for making Julia model look more like a plant cell is putting the bag inside a larger clear plastic bag.

What is a cell?

A cell is the basic and functional unit of life. Every living organism is made up of one or more cells.

However, a plant cell is morphologically different from an animal cell. One of the major differences is that a plant cell posseses a cell wall that protects the cell.

According to this question, Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.

Therefore, the option that would be best for making Julia model look more like a plant cell is putting the bag inside a larger clear plastic bag which will represent the cell wall.

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Pls help with question 10

Answers

Answer:

Formula/Molecular Mass = 147.77415g/mol = 148g/mol (to 3 significant figures)

Explanation:

Given the Law of the Conservation of Mass, the amount of H2O produced will be equal to 10.00g-4.40g = 5.6g

Given equation n=m/M ,

n(H2O)= 5.6/ (1.008×2)+(15.999) = 0.318520677 moles

∴ x=0.318520677 moles

∴ Molecular mass (hydrated sodium sulfate) =

= (22.990×2)+(32.06)+(15.999×4)+[0.318...((1.008×2)+(15.999))]

= 147.77415g/mol

Answer:

Answer is in the attachment:

x=10

Explanation:

If I have 21 moles of gas held at a pressure of 78 atm and a temperature of 901 K, what is the volume of the gas?

Answers

n this questions certain

a

r

e

g

i

v

e

n

,

of moles ,n = 21 mol, Pressure P = 78 atm, Temperature T = 900 K, Volume V = ?

We have to calculate the volume of the given moles of gas at specific temperature and pressure.

Using Ideal Gas equation;

PV = nRT

V = nRT /P ( R = gas constant = 0.08206 L atm

m

o

l

1

K

1

)

V= 21 mol x 0.08206 L atm

m

o

l

1

K

1

x 900K / 78 atm

V= 73.854 L atm / 78 atm = 0.946 L

Time (sec) [CH4] (mol/L)
0 1.2
20 1.0
40 0.9
60 .85
CH4 (g) + O2 (g) -----> CO2 (g) + H2O (l)

Given the above table and equation above, calculate the average rate of consumption of oxygen from time 20 seconds to time 60 seconds.

Answers

Based on the table and the equation of reaction; the

rate of consumption of oxygen between time 20 and 40s is 0.005 M/srate of consumption of oxygen between time 40 and 60s is 0.0025 M/s

What is rate of a reaction?

The rate of a reaction is the rate at which reactants molecules are consumed or products are formed.

Rate of reaction = change in concentration of reactants or products/ time taken

Based on the equation of reaction, the rate of consumption of oxygen is equal to the rate of consumption of methane.

Thus. rate of consumption of oxygen from time 20 seconds to time 60 seconds is calculated as follows:

Rate between 20 and 40 = 1.0 - 0.9/20

Rate of consumption of oxygen = 0.005 M/s

Rate between 40 and 60 = 0.9 - 0.85/20

Rate of consumption of oxygen = 0.0025 M/s

Therefore, the rate of consumption of oxygen decreases with time.

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While on the scene of a very large explosion, you realize that you and your colleagues require additional wire mesh screens to collect evidence. What are you most likely sifting through?
A. Liquid found at the crime scene
B. Debris found at the crime scene
C. Dirt from footprints found at the crime scene
D. Vapors from the explosion​

Answers

The individual is most likely sifting through the debris which is found at the crime scene.

What is Debris?

This is defined as the scattered remains of something which has been broken down as a result of incidents such as an explosion.

The wire mesh is used as it helps to remove long fibers present at the crime scene which is taken for investigation.

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When the maturities of a bond issue are spread over several dates, the bonds are called.

Answers

A serial bond is a bond issue that is structured so that a portion of the outstanding bonds mature at regular intervals until all of the bonds have matured. Because the bonds mature gradually over a period of years, these bonds are used to finance projects that provide a consistent income stream for bond repayment.

What can you infer about magnetic domains from the fact that they are arrangements of atoms?.

Answers

Explanation:

Q. What can you infer about magnetic domains from the fact that they are arrangements of atoms? The individual domains are extremely small.

In ferromagnetic materials, smaller groups of atoms band together into areas called domains, in which all the electrons have the same magnetic orientation. That's why you can magnetize them.An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity.

Predict the species that will be reduced first if a mixture of molten salts containing the following ions undergoes electrolysis:

Zn2+, Mn2+, Na+, Al3+, Li+

Hint! You may need to consult the table of Standard Reduction Potential on the data sheet.

Answers

Answer: Zn2+

Explanation:

The standard reduction potential of the given species is as follows:-

[tex]\begin{aligned}&Z_{(aq)}^{2+}+2 e^{-} \longrightarrow {Zn}(\mathrm{s}) \quad E^{\circ}=-0.76 \mathrm{~V}\\&\mathrm{Mn}_{(\text {aq) }}^{2+}+2 e^{-} \longrightarrow \mathrm{Mn}(\mathrm{s}) \quad E^{\circ} = -1.03 \mathrm{~V}\\&\mathrm{Na}^{+}_{(\text {aq) }} + e^{-} \longrightarrow \mathrm{Na}\text{(s)} \quad E^{\circ}=-2.71 \mathrm{~V}\end{aligned}[/tex]

[tex]\begin{aligned}&\mathrm{Al}_{(\text {aq) }}^{3+}+3 e^{-} \longrightarrow \text {Al}\text{(s)}\quad E^{0}=-1.66 \mathrm{~V}\\&\mathrm{Li}^{+}(aq)+{e}^{-} \longrightarrow \mathrm{Li}\text{(s)} \quad E^{0}=-3.05 \mathrm{~V}\end{aligned}[/tex]

In the electrochemical series, the species having the lowest electromotive force—the lowest negative value—will be reduced first and the species having the highest negative value will be reduced last

Therefore, Zn2+ will be reduced first and Li+ will be reduced last

The reduction has been defined as the loss of electrons. The species of molten salt that reduces first has been zinc ion in electrolysis.

What is electrolysis?

The electrolysis has been defined as the process of the ionization of the salt under the influence of the electric field.

The species with the lowest reduction potential will reduce first. The reduction potential of the following is:

Zinc ion = -0.76 VManganese ion =  -1.03 VSodium ion = -2.71 VAluminum ion = -1.66 VLithium-ion = -3.05 V

Zinc has the lowest reduction potential and thus is the reduced first among the others.

Learn more about electrolysis, here:

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A compound contains only aluminum and carbon. 0.03 moles of this compound reacted with excess water to form 0.12 moles of AI(OH)3 and 0.09 moles of CH4 write a balanced equation for this reaction.

Answers

Explanation:

4Al+3C+H2O→4Al(OH)3+3CH4

Balanced reaction:- 4Al+3C+HH O→4Al(OH)3+3CH4

How many pairs of autosomal chromosomes does each person without chromosomal abnormalities have?

a)46 pairs

b)22 pairs

c)23 pairs

d)45 pairs

Answers

C. 23 pairs

There are a total of 46 chromosomes

What type of galaxy is most common?

Elliptical
Irregular
Lens
Spiral

Answers

Elliptical galaxies are the most abundant type of galaxies found in the universe but because of their age and dim qualities, they're frequently outshone by younger, brighter collections of stars. Elliptical galaxies lack the swirling arms of their more well-known siblings, spiral galaxies.

Fun fact:
Our Milky Way has a spiral galaxy

Hope this helped :)

(40) If a hypothesis is proven correct, a theory is formulated.
True or false

Answers

Answer:

In scientific reasoning, a hypothesis is constructed before any applicable research has been done. A theory, on the other hand, is supported by evidence: it's a principle formed as an attempt to explain things that have already been substantiated by data.

Explanation:

just pick the right option

Answers

Answer:

A

Explanation:

As CO₂ (carbon dioxide) depends on the air temperature, it is the dependent variableTherefore, air temperature is the independent variableThis is about the relation between carbon dioxide and air temperature, so the soil surface is not a variable to be considered

The half-life of cobalt-60 is 5 years. How old is a sample of cobalt-60 if only one-eighth of the original sample is still cobalt-60?.

Answers

[tex]\tt \large{\boxed{\bold{Nt=No.(\frac{1}{2}) ^{\frac{T}{t1/2} } }}[/tex]

Nt/No = 1/8

T = duration of decay

t 1/2 = half-life

[tex]\tt \dfrac{1}{8}=\dfrac{1}{2}^\dfrac{T}{5}}\\\\(\dfrac{1}{2})^3=\dfrac{1}{2}^\dfrac{T}{5}}\\\\3=\dfrac{T}{5}\rightarrow T=15~years[/tex]

What component of the human epidermis functions to make the skin's surface extremely tough and resistant to bacterial enzymes?

keratin

proteases

dermis

hypodermis

Answers

It’s a have a great day:)

Answer:

Keratin :)

Explanation:

Heres a link to learn more about this question: https://brainly.com/question/13022311 :)

Have an amaazing day!!

Please rate and mark brainliest!!

giving brainliest please help!

Answers

Answer:    

I am sure it is the reaction will shift right towards the

product

Describe an experiment to determine rate of reaction

Answers

Answer:

Temperature. An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules.

How long would it take for a sound impulse to travel through an aluminum rod 1,500 meters long?

0.45 sec
4.5 sec
3.4 sec
0.29 sec

Answers

Answer:

As per Provided Information

Distance travelled by sound impulse through an aluminium rod is 1500 metres .

We have been asked to determine the time taken by the sound impulse to travel through aluminium rod .

As we know

Speed of sound in aluminium rod is 5100m/s .

Using Formulae

[tex] \boxed{\bf \: Time \: taken_{(Sound \: impulse)} = \cfrac{distance \: travelled \: by \: sound \: impulse}{speed \: of \: sound \: impluse}}[/tex]

Substituting the value and we obtain

[tex] \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = \dfrac{1500}{5100} \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = \cancel\dfrac{1500}{5100} \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = 0.29 \: s[/tex]

Therefore ,

0.29 second sound impulse takes to travelled.

So, your answer is 0.29 s .

Consider these equations:

2S (s) + 3O2 (g)→2SO3 (g), ΔH = −792 kJ
2S (s) + 2O2 (g)→2SO2 (g), ΔH = −594 kJ
2SO2 (g) + O2 (g)→2SO3 (g), ΔH =?

What is the missing ΔH?

a. −294 kJ
b. −198 kJ
c. +198 kJ
d. +294 kJ

Answers

The answer is a look at the solutions of G how they line up with each other we know so much about him

Answer: (B) −198 kJ.

What happens to the temperature of a gas when it is compressed?.

Answers

When a gas is compressed the temperature increases. This happens because of the relationship between temperature and pressure in the ideal gas law. ...

What percentage of Earth's land is used for agriculture?


40%

20%

50%

10%

Answers

Answer:

40%

Explanation:

hope it helps! God bless

Answer:

40% of Earth's land is used for agriculture.

Draw the product of the reaction. Draw any hydrogens on oxygen and nitrogen, where applicable.

Answers

The product of the reaction will be polar in nature due to the bonds formed between hydrogen and oxygen or nitrogen.

What is a product of a reaction?

The product of a chemical reaction is the substance which is formed at the end of the reaction by the reactant or reactants.

The product of a reaction can be formed from the rearrangement of atoms in a compound due to changes in the environment of that compound.

The product can also be formed by the addition or removal of atoms of the reactants.

In the example above, no reactant is shown, however the bonds formed between hydrogen and oxygen or nitrogen gives polarity to the product formed.

Hence, a reactant must be present for a product to be formed.

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What are the 10 most important chemical reactions?
Choose ALL correct answers
A.) Combustion of methane (hydrocarbons)
B.) Photosynthesis.
C.) Synthesis of sulfuric acid.
D.) Equilibrium of carbonic acid and carbon dioxide gas.
E.) Biological formation of calcium carbonate.
F.) Rusting of iron.
G.) Production of hydrogen from the action of acid on metal.
H.) Oxidation of alcohol.
I.) Decomposition.
J.) Redox.

Answers

Answer:

Combustion of methane (hydrocarbons)

Photosynthesis.

Synthesis of sulfuric acid.

Equilibrium of carbonic acid and carbon dioxide gas.

Biological formation of calcium carbonate.

Rusting of iron.

Production of hydrogen from the action of acid on metal.

Oxidation of alcohol.

Explanation:

how this helps if do mark brainllest pls!!! :)

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Yo __________ al tenis de mesa. PLSS I NEED HELP!!1). To make a full rotation, 59 days, 19 h, and 45 min goes by for Mercury. It only takes Earth 1 day! How many hours does it take Mercury to complete a full rotation? Show your work using the correct conversion factors.2). Some plants grow quickly. An invasive weed species can grow quickly. One variety grows up to 0.89 ft per day. How fast in inches per hour can this weed grow? Show your work using the correct conversion factors.3). Davids watch broke. He decides to get it fixed instead of replacing it. The total cost to repair the watch can be represented by 0.07(45h) + 45h, where h represents the number of hours it takes to repair the watch. a). What part of the expression represents the cost of the repair before tax? b) Explain what your answer in Part A means in the context of the problem. Find the minimum distance from the parabola x-y^2=0to the point (0,3). Give the equation of the line in point-slope form that goes through the point(-3,7) and is parallel to the line 4x-3y=7 Find the value of xxx in the isosceles triangle shown below. Choose 1 answer: Choose 1 answer: (Choice A) A x = 20x=20x, equals, 20 (Choice B) B x = 7x=7x, equals, 7 (Choice C) C x=\sqrt{52}x= 52 x, equals, square root of, 52, end square root (Choice D) D x = \sqrt{40}x= 40 x, equals, square root of, 40, end square root 1. Select all of the grievances that are found in the Declaration ofIndependence: *The British King has abused the rights of the American coloniesThe British King forced colonists to house soldiers in their homesThe British King asked citizens to give up their rights of representationThe British King dissolved the representative assemblies in the coloniesThe British King accepted petitions for a redress of grievancesa Why does the author include the anecdote about the McCoy family in this section? Factor using the greatest common factor25n - 5n32n + 28n - 20 How was you day? What is 12 + 20 If a hamster is kept in a laboratory and receives no information about changes in day length or temperature (i.s. housed in constant dark), its rhythms will eventually _______, with a daily cycle that lasts a bit longer than 24 hours. hii i need help, helppp thank you I will give the brainliest to the first person to answerWrite the equation for the following situations.After adding 8 students to each of 5 same-sized teams, there were 75 students altogether. Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2, (b) find the critical value z/2, or (c) state that neither the normal distribution nor the t distribution applies.The confidence level is 99%, is not known, and the histogram of 56 player salaries (in thousands of dollars) of football players on a team is as shown. Find the area of the shape. help me please I couldn't solve it When The First World War start ? Would you give up quality of life for a higher standard of living? Solve the picture for n Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?helps with communication; contains mostly cellulosecontains mostly cellulose; forms the outer layer of animal cellsis found in plant cells; is found in animal cellsis semipermeable; found in animal cells PLEASE HELP ME FIND THE SURFACE AREA OF THIS PRISM