If you have 40.0 g HCl and 40.0 g NaHCO3, do you have the same number of moles of each?

Answers

Answer 1

They both have a different number of moles

Further explanation

Given

40 g HCl

40 g NaHCO3

Required

moles

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

n = mass : molar mass

So the moles of a compound are affected by its molar mass (inversely proportional)

The larger the molar mass (of the same mass), the smaller the moles

molar mass HCl = 58.5 g/mol

molar mass NaHCO3 = 84 g/mol

mol HCl :

= 40 : 58.5

= 0.684

mol NaHCO# :

= 40 : 84

= 0.476


Related Questions

Do you know this Ca(NO2)2 ? It's not calcium nitrate

Answers

Answer:

The answer is, in fact, Calcium Nitrate. I even looked it up to make sure, and according to PubChem, it is Calcium Nitrate. I suggest asking your teacher what this question is trying to ask because if it says it is not Calcium Nitrate, someone got it wrong.

Explanation:

The only other name I can think of, though, is Calcium Dinitrite.

If ice is added to a large fish tank and a small fish bowl, both at the same termperature, the large fish tank's water will cool faster because there is more water.
TRUE OR FALSE

Answers

false
because the smaller bowl of water has less volume to cool off with the ice than the large fish tank

Answer: False

Explanation:

When a object is touching a surface, it mostly likely will change the temperature it's on, depending on how it is. Since they both have different temperatures and cooling down at the same particularity rates, it is highly false that this would happen. What WOULD would the bowl cool faster THAN the water, then the ice will transform into water.

Hope this helps and make sure to thank me!

How does the theory of plate tectonics explain the movement of the continents and changes to Earth’s surface such as volcanic eruption, earthquakes and mountain building?

Answers

It cracks the land on the earth and makes an erosion for the building like leaving cracks on the walls or the floor or both, and maybe the building falling

Which of the following is an example of the reflection of waves?
A)getting a sunburn
B)Your image in a mirror
C)light through the sunroof of a car
D)The movement of a sailboat

Answers

Answer:

C

Explanation:

The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected.

Balance the following Equation:

___Zn + ___HCl --> ___ZnCl2 + ___H2



50g of zinc are reacted with 50g of hydrogen chloride. What is the limiting reactant?

Group of answer choices

HCl

ZnCl2

Zn

H2

Answers

Answer:

HCl

Explanation:

Given data:

Mass of Zn = 50 g

Mass of HCl = 50 g

Limiting reactant = ?

Solution:

Chemical equation:

Zn + 2HCl      →     ZnCl₂ + H₂

Number of moles of Zn:

Number of moles = mass / molar mass

Number of moles = 50 g/ 65.38 g/mol

Number of moles = 0.76 mol

Number of moles of HCl:

Number of moles = mass / molar mass

Number of moles = 50 g/ 36.5 g/mol

Number of moles = 1.4 mol

Now we will compare the moles of Reactant with product.

                 Zn         :          ZnCl₂

                  1           :             1

                 0.76     :           0.76

                Zn         :             H₂

                  1           :             1

                 0.76     :           0.76

               HCl         :          ZnCl₂

                  2           :             1

                 1.4         :           1/2×1.4 = 0.7

                HCl         :             H₂

                  2           :             1

                 1.4         :           1/2×1.4 = 0.7

Less number of moles of product are formed by HCl it will act limiting reactant.

How much Ag can be produced if one is given 64 g of Ag2O?

Answers

mass Ag = 59.5 g

Further explanation

Given

64 g of Ag2O

Required

Mass of Ag

Solution

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements

mass of Ag in Ag2O :

= ((2 x Ar Ag)/molar mass Ag2O )x mass Ag2O

[tex]\tt mass~Ag=\dfrac{2.Ar~Ag}{MW~Ag_2O}\times mass~Ag_2O[/tex]

Ar Ag : 107,8682 g/mol

MW Ag₂O = 231,735 g/mol

Input the value :

mass Ag = ( (2 x 107,8682 g/mol )/ 231.735) x 64 g

mass Ag = 59.5 g

Or we can use reaction

2Ag₂O ⇒ 4Ag + O₂

mol Ag₂O :

= 64 : 231.735

= 0.276

mol Ag :

= 4/2 x moles Ag₂O

= 4/2 x 0.276

= 0.552

mass Ag :

= 0.552 x 107,8682 g/mol

= 59.54 g



Which of the following IS NOT an ionic compound?
A) C2H5OH
B) KCI
C) Mg3N2
D) MnO2

Answers

A,

ionic compounds are with a metal and a non metal. A is a hydrocarbon which uses covalent bonds as all the elements involved are non-metals

What happens to the charge if a nonmetal
takes two valence electrons?

Answers

Answer:

if a non-metal takes two valence electrons then it get negatively charged to form ion.

Answer:

The nonmetal will gain a negative charge of magnitude 2

Explanation:

X be the nonmetal

On gaining two electrons

X^2-

based on the balanced equation: 2 K + Cl2 --> 2KCl what is the mole ratio of K to KCl

Answers

Answer:

2 : 2

Explanation:

The balanced chemical equation is given as:

            2K   +     Cl₂   →    2KCl

From the balanced reaction equation, we can conclude that;

2 moles of K will react with 1 mole of Cl₂ 2 moles of K will produce 2 moles of KCl 1 mole of Cl₂ will produce 2 moles of KCl

Therefore, the mole ratio is 2:2 or 1:1 in the simplest form.

Select the correct answer.

What is the formula of the compound vanadium(V) oxide? Use the list of polyatomic ions and the periodic table to help you answer.

A.
VO2
B.
VO5
C.
V5O2
D.
V2O5
E.
V2O2

Answers

Answer:

Vanadium(V) oxide is the inorganic compound with the formula V2O5. Commonly known as vanadium pentoxide,

Explanation:

then it is answer D

Which statement best explains how the gases of the atmosphere affect the temperature of Earth?
A
The gases reflect all of the heat from the Sun, preventing it from reaching Earth's surface.
B
The gases absorb all of the heat from Earth's surface, preventing it from radiating into space.
С
The gases absorb some of the heat from the Sun, holding it to keep it warm near Earth's surface.
D
The gases reflect some of the heat from Earth's surface, holding it away from the surface in space.

Answers

Answer: The answer is c

Explanation:

The gases absorb some of the heat from the Sun, holding it to keep it warm near Earth's surface. Hence option C is correct.

What is atmosphere?

Atmosphere is defined as a layer of gas that surrounds a planet and is kept there by the gravitational pull of the planetary body. The atmosphere of the earth shields its people by absorbing dangerous sun rays and preserving a constant temperature. It protects Earth from many space hazards and enables life there. As a result, it is crucial for regulating climate and a source of life on planet.

The majority of the infrared energy from the Sun is absorbed and re-emitted in all directions by greenhouse gas molecules and clouds, creating the greenhouse effect. This causes the lower atmosphere and the Earth's surface to warm.

Thus, the gases absorb some of the heat from the Sun, holding it to keep it warm near Earth's surface. Hence option C is correct.

To learn more about atmosphere, refer to the link below:

https://brainly.com/question/26767532

#SPJ2

why was the turtle shy at the party?

Answers

Answer:

Because he likes someone named shelly?

WILL MARK BRAINLIEST
*please answer correctly*
I’ve been stuck on this question for a while so I’d appreciate it

Answers

okay so i think to calculate volume change you use the ideal gas law . this is pressure x volume = amount of substance x ideal gas constant x temperature. i honestly don’t know where to go from there but i hope this helped a bit :(

Given 5 Moles of H20. how many moles of O, are produced. Use the following Equation
2H2+O2->2H2O

Answers

Moles O2 required : 2.5

Further explanation

Given

Reaction

2H2+O2->2H2O

Required

Moles of O2

Solution

The reaction coefficient in a chemical equation shows the mole ratio of the reacting compounds (reactants or products)

From the equation, mol ratio of H2O : O2 = 2 : 1, so moles O2 :

= 1/2 x mol H2O

= 1/2 x 5 moles

= 2.5 moles

I WILL GIVE YOU BRAINLY PLSS!!! :(




Budding is a form of ______________ reproduction in which a new ______________
develops from a bud or outgrowth due to _________ division. The new organism remains
attached as it grows, separating from the ___________________ only when it is mature.
3. Vegetative reproduction is a form of _____________ reproduction in ___________ .
It is a process by which new organisms are produced without _______________ or
_______________ . It can occur naturally or be induced by ______________________ .

Answers

Answer:

Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site.

Explanation:

Answer:

Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site.

Explanation:

What happens to the energy when you heat the iron? Why is this happening?

Answers

Answer:

When iron is heated in air it reacts with oxygen to form the compound iron oxide. Iron is a solid and oxygen is a gas. 5 Draw diagrams to show how the atoms are arranged in iron, oxygen and iron oxide in the circles below their names. Use different colours for the iron atoms and the oxygen atoms.

Explanation:

Nucleus Nucleus Atom 1 Atorn 2 Nucleus Nucleus Atom 3 Atom 4 Which two atoms are of elements in the same group in the periodic table?​

Answers

Explanation:

The atoms of elements on the same period on the periodic table typically have the same number of valence electrons.

They have the same electronic configuration.

Valence electrons are electrons in the outermost shell of an atom.

The number of electrons in an atom is a good indicator of elements that might potentially belong to the same group.

am i shadow banned or something but lcan someone answer this

Answers

Answer: How many warnings have you gotten? depending on that you could've.

Explanation:

How many moles is 0.025 g of NaCO3? (Show Your Work)

Answers

mol of Na2CO3 = 2.36 x 10⁻⁴

Further explanation

Given

Mass : 0.025 g of Na2CO3

Required

moles

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass  :

mol = mass : molar mass

mass = mol x molar mass

Input the value :

mol = mass : MW Na2CO3

mol = 0.025 g : 106 g/mol

mol = 2.36 x 10⁻⁴

Which of these elements has the highest first ionization energy
A) oxygen
B) beryllium
C) fluorine
D) carbon
E) boron

Answers

Carbon that’s the one

To calculate acceleration you must know both the objects velocity and _______________ 1pt

Answers

Answer:

i think its speed

Explanation:

Answer:

Velocety and mass

Explanation:

How many grams of water are produced from 0.198 grams of nitric acid?
2HNO3+Mg(OH2) = Mg(NO3)2+2H2O

Answers

Answer:

2+2H2O.We already learn it

Along with maintaining structure and reproduction, what is the third item that all living things face as a challenge? Question 3 options: How to socialize appropriately How to social distance effectively How to get enough sleep. How to get enough energy for daily life

Answers

Answer:

So the answer is gonna be how to get enough energy for your daily life

Explanation:

Sometimes the human body cant get enough energy from the food and protein the food gives out.

WHAT IS THE TOTAL NUMBER OF ATOMS IN BOTH OF THESE
COMPOUNDS?

Answers

just look it up online

HELP PLEASEEEEEEEE HELPPPPPPP (IMAGE)

Question 1 options:

solid


liquid


gas


Question 2 options:

solid


liquid


gas


Question 3 options:

solid


liquid


gas

Answers

1. Liquid
2. Gas
3. Solid

i’ll give Brainliest please answer also i know this isn’t chemistry but brainly doesn’t have science

Answers

the answer would be iron. divide mass by volume to get density.

Answer:

B. Iron

Explanation:

Correct

What are groups on the periodic table? How many are there?

Answers

Explanation:

Groups are numbered 1–18 from left to right. The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.

Answer:

The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.

How many moles of Fe2O3 were used to produce with 11.5 moles of CO2 ?

Answers

Moles of Fe2O3 used : 3.83

Further explanation

Given

11.5 moles of CO2

Required

moles of Fe2O3

Solution

Reaction

Fe2O3 + 3CO ⇒2Fe + 3CO2

The reaction coefficient shows the mole ratio of the reacting compound (reactants or products)

From the equation, mol ratio of Fe2O3 : CO2 = 1 : 3, so mol Fe2O3 :

= 1/3 x moles CO2

= 1/3 x 11.5

= 3.83 moles

How can we separate a homogenous mixture (a solution)? For example, how can we separate salt that has been dissolved in water?

Answers

Answer:

Well, to separate salt from water, you would stir the two together to create a homogenous mixture. Then you would boil the mixture; all the water would evaporate, leaving behind the salt

Explanation:

The sum of 4.824 + 2.03 + 4.72319 + 123.4567 + 111.1 expressed to the
proper number of significant figures is

Answers

Answer:

246.13389

Explanation:

Simplify the expression.

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