Answer:
the rate at which sulfur dioxide is being produced is 0.8993 kg per second
Explanation:
Given the data in the question;
we write the balanced chemical reaction
2H₂S + 3O₂ → 2SO₂ + 2H₂O
now we calculate the number of moles of oxygen by using an ideal gas equation; PV = nRT
n = PV/RT
so we substitute in our values
n = ( 0.77 × 1.01325 × 10⁵ × 994 × 10⁻³ ) / ( 8.314 × (170 + 273 )
n = 77552.1285 / 3683.102
n = 21.056 mol
so, moles of SO₂ produced = 2/3 × 21.056 = 14.0373 moles
Hence, the production rate will be;
⇒ 14.0373 × 64.066
= 899.3 g/s
= 0.8993 kg/s
Therefore, the rate at which sulfur dioxide is being produced is 0.8993 kg per second
When a substance is a solid it has
A. Potential energy
B. Kinetic energy
C. Gravitational energy
D. Chemical energy
Answer:
potential energy
Explanation:
metal and one atom of a group
The following Lewis representation depicts a reaction between one atom of a group
nonmetal
eg
X.
+
x*
+
In this representation, each
atom loses
electron(s) and each
atom gains
electron(s)
Teg
The bonds that form in the product would be
Explanation:
X = Group 1 metal
Y = Group 7 Non metal
The dots basically signifies the group.
Metal loses electrons and non metal gains electron. The valency of X is 1 and that of Y is 7.
X atom loses one electron and Y atom gains one electron.
The bond that forms between a metal and a non metal is an ionic bond.
Help me answer this please
Are the electrons in the following redox reactions transferred completely from the atoms of one element to the atoms of another or are they only partially transferred?
a. Ca(s) + Cl2(g) → CaCl2(s)
b. 4Cu(s) + O2(g) → 2Cu2O(s)
The electrons, in redox reaction get partially transferred by one to another element.
What is redox reaction?A redox reaction occurs when the oxidation states of the substrate change. The loss of electrons or maybe an increase in the oxidation state of a chemical and its atoms is referred to as oxidation. The gain of electrons or a reduction in the oxidation state of either a chemical or its atoms is referred to as reduction. The oxidation as well as reduction process can be seen in same reaction which is introduced as redox reaction.
What is electrons?
Electron can be considered as sub atomic particle which carry negative charge on it.
The given reactions are:
a. Ca(s) + Cl2(g) → CaCl2(s)
b. 4Cu(s) + O2(g) → 2Cu2O(s)
After transferring two electron in both reaction Ca and Cu it will form CaCl2 and 2Cu2O.
Therefore, after transferring partially electrons one elements get converted into another kind of molecule
To know more about redox reaction click here.
https://brainly.com/question/13293425.
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How many moles are in 3.2 x 10^25 atoms of silver?
53 mol Ag
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableMolesAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[Given] 3.2 × 10²⁵ atoms Ag
[Solve] moles Ag
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
[DA] Set up: [tex]\displaystyle 3.2 \cdot 10^{25} \ atoms \ Ag(\frac{1 \ mol \ Ag}{6.022 \cdot 10^{23} \ atoms \ Ag})[/tex][DA] Multiply/Divide [Cancel out units]: [tex]\displaystyle 53.1385 \ mol \ Ag[/tex]Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
53.1385 mol Ag ≈ 53 mol Ag
STEP 5: LEAD
Tare the balance. Put calorimeter (no lid) on the balance.
Measure the mass to the nearest 0.01 g.
12.34 g
Use a graduated cylinder to add approximately 40 mL of
water to the calorimeter. Measure the mass of the
calorimeter (no lid) and water to the nearest 0.01 g.
51.99 g
Subtract to find the mass of the water. 39.65 g
Answer:
the answers are in the pic
Explanation:
Answer:
12.36, 52.49, 40.13
Explanation:
Step 5 for the copper one
g the following statements as they apply to gas chromatography. Decide if each is true or false. The technique referred to as gas chromatography is actually gas-liquid chromatography since the stationary phase is a liquid adsorbed on the surface of an inert solid. To be separated using GC, analytes must be volatile. An air peak is commonly used to determine the dead time when using a TCD detector. An FID is insensitive to non-combustible gases such as water and carbon dioxide. A column temperature equal to or slightly above the average boiling point of the sample components results in a reasonable elution time.
Answer: To be separated using GC, analytes must be volatile.
An air peak is commonly used to determine the dead time when using a TCD detector.
An FID is insensitive to non-combustible gases such as water and carbon dioxide.
A column temperature equal to or slightly above the average boiling point of the sample components results in a reasonable elution time.
Explanation:
The gas chromatography works on the principle of separation of gaseous substances based on the differences of vapor pressure. The thermal conductivity detector works on the principle of detection of effluents from the has chamber and the air peak gives indication of the retention time of the effluents. Flame ionization detector can be used for the detection of organic compounds but insensitive for the detection of halogens, non-combustible substances like carbon dioxide and water. The temperature of the column is kept higher than the average boiling point of the substance so as to attain separation of substances by the differences in the elution time.
Take your time please.
Answer:
1.) Eyewash station --> D
2.) Absorbent material --> G
3.) Fire extinguisher --> F
4.) Safety Shower --> E
5.) Biohazard container --> J
6.) Broken glass container --> I
7.) Safety goggles --> C
8.) Lab apron --> H
9.) asbestos gloves --> A
10.) Latex gloves --> B
Explanation:
In an equipped laboratory, alot of safety equipments are made available and kept in area that it could be easily accessed in the laboratory. Safety or protective equipments are those materials that helps protect a laboratory personnel while at work on the lab.
These equipments include:
--> Eyewash station: This is an equipment used in the laboratory during emergency to rinse chemical from the eye. Therefore option D is correct.
--> Absorbent material: They are used to contain small spills in the laboratory. Therefore option G is correct.
--> Fire extinguisher: This equipment is used to put out small fires. Therefore F is correct.
--> Safety Shower: This is used to rinse away chemical from clothes and on skin during emergency. Therefore option E is correct.
--> Biohazard container: This container is used to safely dispose bacteria culture, blood and other living tissues. Therefore option J is correct.
--> Broken glass container: This is used to dispose cracked, chipped or broken bottle in the laboratory. Therefore option I is correct.
--> Safety goggles: This helps to protect the eye from chemical and broken glasses. Therefore option C is correct.
--> Lab apron: This is worn by the laboratory personnel to help protect the skin from chemical and biohazards. Therefore option H is correct.
--> Asbestos gloves: these are heat resistant gloves used to protect the hands from heat. Therefore option A is correct.
--> Latex gloves: these are equally worn by the laboratory personnel to protect the hands from chemicals and biohazards
[tex]Answer :—✔[/tex]
THE OTHER PERSON GAVE THE CORRECT ANSWERPLEASE!!!
Calculate the mass of 6.022×10236.022×1023 molecule of NH4cl
Answer:
53.5gram.
Explanation
Explanation: number of moles = number of molecule ÷ avogadro's number. => moles = 6.022 × 10²³ ÷ 6.022 × 10²³ = 1 mole. mass of 1 mole of NH4Cl = 1 × molar mass.
Sound waves cannot pass through one another.
A. True
B. False
The effective molar mass of ashes has units of grams of ashes per mole of base provided. The mass of the ashes in the experiment is given, 20.4 g. The rest of the work involves determining the amount of base provided, in moles. We will first determine the moles of base used in the titration. What volume of acid was used in the experiment
Answer:
molar mass of unknown monoprotic acid = 114.1 g / mole.
Explanation:
Note: This question is incomplete and lacks necessary data to solve for the required calculation. However, I have similar question on the internet and seen the question completely and will be using that data to solve for this question in order to solve required calculation. Besides that, complete question asks us to solve for molar mass of the acid used.
Note: I have attached the screenshot of the complete question, please have a look on it in the attachment below.
Calculation:
Volume = 34.81mL
34.81 mL of 0.4346 M potassium hydroxide
= 0.03481 L * 0.4346 mole / L
= 0.01513 mole.
Balance equation:
HA + KOH ----> KA + H2O
As we know from the question,
one mole HA neutralize with 1 mole KOH.
mole of unknown monoprotic acid = 0.01513 mole.
And we know that the formula for mole is:
mole = mass / molar mass
Making molar mass as the subject:
Molar mass = mass / mole
Molar mass = 1.726 g / 0.01513 mole
Molar mass = 114.1 g / mole.
So,
Molar mass of unknown monoprotic acid = 114.1 g / mole.
give an example of biotic living conditions.
Answer:
plants and animals
Explanation:
Answer:
water, light, wind, soil, humidity, minerals, gases
Explanation:
i just know
An experiment requires 66.6 g of ethyl alcohol (density = 0.790 g/mL). What is the volume?
Answer:
Volume = 84.30 mLExplanation:
Mass = 66.6 gram
Density = 0.790 g/mL
Volume = Mass ÷ Density
Volume = 66.6 ÷ 0.790
Volume = 84.30 mL
Suppose you are titrating an acid solution with a base solution of known concentration. To calculate the concentration of the acid solution, use three steps.
1. Use the____of base____the endpoint and the known concentration of the base solution to find the_____of base used.
2. Use the_____to find the moles of acid from the moles of base.
3. Divide the moles of acid by the volume of_____the titration to find the concentration of acid.
Answer:
To calculate the concentration of the acid solution, use three steps.
1. Use the volume of base used at the endpoint and the known concentration of the base solution to find the moles of base used.
2. Use the stoichiometry to find the moles of acid from the moles of base.
3. Divide the moles of acid by the volume of acid used in the titration to find the concentration of acid.
Explanation:
Titration is the process used in volumetric analysis to determine the amount of a substance present in a given sample.
In any titration, a solution of known concentration known as the standard solution is used to react with a solution of of unknown concentration. The reacting volumes of the solutions are then used to calculate the unknown concentration of the second solution.
In acid-base neutralization reactions, an equivalence point/endpoint of the neutralization titration is obtained and is the point at which the moles of H+ is equal to the moles of OH- . An indicator is used to indicate the equivalence point during a titration by a color change observed in the indicator.
In order to calculate the concentration of an acid, we need to know accurately, use three steps:
1. Use the volume of base used at the endpoint and the known concentration of the base solution to find the moles of base used.
2. Use the stoichiometry of the reaction to find the moles of acid from the moles of base.
3. Divide the moles of acid by the volume of acid used in the titration to find the concentration of acid.
In order to calculate the concentration of a base, use three steps:
1. Use the volume of acid used at the endpoint and the known concentration of the acid solution to find the moles of acids used.
2. Use the stoichiometry of the reaction to find the moles of base from the moles of acid.
3. Divide the moles of base by the volume of base used in the titration to find the concentration of base.
Scoring: Your score will be based on the number of correct matches minus the number of incorrect matches. There is no penalty for missing matches.
Use the References to access important values if needed for this question.
Match the gas sample on the left with a description on the right.
You may use the same answer more than once.
Clear All
0.115 moles of Xe in a 4.87 L container at a temperature of 446K
0.599 moles of Xe in a 5.78 L container at a temperature of 306K
0.444 moles of Xe in a 2.39 L container at a temperature of 408K
0.556 moles of Xe in a 2.11 L container at a temperature of 446K
has the highest average molecular speed
has the lowest average molecular speed
has an average molecular speed between the highest and the lowest
Answer:
Container 2 has the lowest average molecular speed
Container 4 has the highest average molecular speed
Explanation:
Step 1: Data given
Atomic mass of Xe = 131.29 g/mol
Container 1: Number of moles Xe = 0.115 moles; volume = 4.87 L; temperature= 446K
Container 2: Number of moles Xe = 0.599 moles; Volume = 5.78 L; temperature= 306K
Container 3: Number of moles Xe = 0.444 moles; Volume = 2.39L; Temperature = 408K
Container 4: Number of moles Xe = 0.556 moles; Volume=2.11L; Temperature =446K
Step 2: Calculate average molecular speed
Average molecular speed V = √(8RT/πM)
→With R = he gas constant expressed in units of J/mol-K
→with T = the temperature in Kelvin
→with M = the molar mass of the gas
Average molecular speed depends on T and M
Since it's all Xenon, M is the samefor the 4 containers
Container 1:
V1 = √(8*8.314*446K/π*131.29)
V1 = 8.48
has an average molecular speed between the highest and the lowest
V2= √(8*8.314*306K/π*131.29)
V2= 7.03
has the lowest average molecular speed
V3 = √(8*8.314*408K/π*131.29)
V3 = 8.11
has an average molecular speed between the highest and the lowest
V4 = √(8*8.314*446K/π*131.29)
V4 = 8.48
Since the volume is smaller than in container 1 the average molecular speed will be a higher
has the highest average molecular speed
anyone here know about the law of assumption?
Answer:
uhhh not really i don't even know what that is LOL
Draw a line to connect the following terms to their definition.
what is the total pressure in a 10.0L flask which contains 0.200mol of H2 and 0.215mol of N2
Answer:
0.998 atm.
Explanation:
NOTE: The temperature is missing in the above question and the value is 20 °C
From the question given above, the following data were obtained:
Volume (V) = 10.0 L
Number of mole of H₂ = 0.2 mole
Number of mole N₂ = 0.215 mole
Temperature (T) = 20 °C
Total pressure (P) =?
Next, we shall determine the total number of mole in flask. This can be obtained as follow:
Number of mole of H₂ = 0.2 mole
Number of mole of N₂ = 0.215 mole
Total number of mole (n) =?
n = mole of H₂ + mole of N₂
n = 0.2 + 0.215
n = 0.415 mole
Thus, the total number of mole in the flask is 0.415 mole
Next, we shall convert 20 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
Temperature (T) = 20 °C + 273
Temperature (T) = 293 K
Finally, we shall determine the total pressure in the flask. This can be obtained as follow:
Volume (V) = 10.0 L
Total number of mole (n) = 0.415 mole
Temperature (T) = 293 K
Gas constant (R) = 0.0821 atm.L/Kmol
Total pressure (P) =?
PV = nRT
P × 10 = 0.415 × 0.0821 × 293
Divide both side by 10
P = (0.415 × 0.0821 × 293) / 10
P = 0.998 atm.
Therefore, the total pressure in the flask is 0.998 atm.
What type of cloud produces severe weather like thunderstorms, thunder
and lighting, occasional hail, and possibly tornadoes?
Answer:
The cumulonimbus cloud
Explanation:
The cumulonimbus cloud, or thunderstorm, is a convective cloud or cloud system that produces rainfall and lightning. It often produces large hail, severe wind gusts, tornadoes, and heavy rainfall.
pls mark brainliest
Answer:
cumulonimbus clouds
Explanation:
that's the answer.
Which action is not an example of work?
A. pushing a box across the floor
B. picking up a box off the floor
C. holding a tray in the Cafeteria line
D. raising a barbell over your head
C. picking a tray in the cafeteria line
aluminium containers are used to store and transport nitric acid(HNO3) but not NAOH why?
Answer:
(i) Concentrated HNO3 can be stored and transported in aluminium containers as it reacts with aluminium to form a thin protective oxide layer on the aluminium surface. This oxide layer renders aluminium passive. (ii) Sodium hydroxide and aluminium react to form sodium tetrahydroxoaluminate(III) and hydrogen gas.
In order to predict the outcome of the reaction, write the molecular, full ionic, and net ionic equations for a mixture of aqueous ammonia (NH3) and silver nitrate (AgNO3) in which a diammonia silver complex ion is produced. Molecular: Full ionic: Net ionic: Predict your observations based on above molecular equation: Actual observations:
Answer:
See explanation
Explanation:
Full molecular equation;
2NH3(aq) + AgNO3(aq) -------> [Ag(NH3)2]NO3(aq)
Full ionic equation
2NH3(aq) + Ag^+(aq) + NO3^-(aq) --------> [Ag(NH3)2]^+(aq) + NO3^-(aq)
Net ionic equation;
2NH3(aq) + Ag^+(aq) --------> [Ag(NH3)2]^+(aq)
When Silver nitrate is mixed with a solution of aqueous ammonia, a white and cloudy solution was observed.
Do Newton's Laws still apply in space?
Answer:
Yes, they work in space. I forgot an example, will edit the post when I found it
Hope this helps!
Substance in which state of matter have most space between particles
Answer:
to answer your question "which state of matter have most space between particles"
gas is your best answer
Explanation:
when in gas form..particles gain energy and move further apart
for solids particles are fixed (stays in one spot) and vibrates and for liquids particles gain energy but doesn't have enough space to move around freely..so gas is you best answer
what is the formula for tetrahydrogen monocarbide
Answer:
CH4
Explanation:
Tetra is the prefix for four. Hence the H4
Mono is the prefix for one, Hence the C
Methane (aka Tetrahydrogen monocarbide) written as CH4
What is the vapor pressure of CH3COOH and 90*C?
Answer:
40.kPa hope this helps....
PLZ HELP NEED HELP ASAP
Answer:
The third answer choice.
Poor water supplies rank as a —————- in causes of death.
A. not important
B. Minor
C. Major
D. Interesting
A student prepared an Earth/Moon model in which the two spheres were 100 m apart. What were the diameters of the spheres?
Answer:
D₁ = 3.31 m
D₂ = 0.9 m
Explanation:
First, we will find the scaling factor of the model:
[tex]Scaling\ Factor = S.F = \frac{Distance\ between\ Earth\ and\ moon\ in\ Model}{Distance\ between\ Earth\ and\ moon\ in\ Actual}\\S.F = \frac{100\ m}{384400000\ m}\\[/tex]
S.F = 2.6 x 10⁻⁷
Now, the diameter of 1st sphere, that is Earth will be:
[tex]D_{1} = (S.F)(Actual\ Diameter\ of\ Earth)\\D_{1} = (2.6\ x 10^{-7}\ m)(12742000\ m)\\[/tex]
D₁ = 3.31 m
Now, the diameter of 2nd sphere, that is Moon will be:
[tex]D_{2} = (S.F)(Actual\ Diameter\ of\ Moon)\\D_{2} = (2.6\ x 10^{-7}\ m)(3474200\ m)\\[/tex]
D₂ = 0.9 m
What is the meaning of ground state energy?
hope it helps you ❣❣
Mark me as brainliest
What process is represented by the letter on the diagram?
A: ____________________________________________
B: ____________________________________________
C: ____________________________________________
D: ____________________________________________
E: ____________________________________________
Explanation:
I don't really understand the question