1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alekssandra [29.7K]
3 years ago
8

-

Chemistry
1 answer:
Dovator [93]3 years ago
3 0

Answer:

5 × 10^-4 L

Explanation:

The equation of the reaction is;

2KClO3 = 2KCl + 3O2

Number of moles of KClO3 = 13.5g/122.5 g / mol = 0.11 moles

From the stoichiometry of the reaction;

2 moles of KClO3 yields 3 moles of O2

0.11 moles of KClO3 yields 0.11 × 3/2 = 0.165 moles of oxygen gas

From the ideal gas equation;

PV= nRT

P= 85.4 × 10^4 KPa

V=?

n= 0.165

R= 8.314 J K-1 mol-1

T= 40+273 = 313K

V= 0.165 ×8.134 × 313/85.4 × 10^4

V=429.4/85.4 × 10^4

V= 5 × 10^-4 L

You might be interested in
The diagram below shows a box with
Delicious77 [7]
The answer is: D the box will NOT move or change. Hope this helps!
5 0
3 years ago
Pharmacists sometimes measure medicines in the unit of "grains," where 1 gr = 65 mg. The label on a bottle of aspirin reads "Asp
viva [34]

Answer:

325mg of Aspririn

Explanation:

First you should note the information that the problem gives you:

- The bottle of Aspirin has 5gr (grains)

- 1gr(grain) = 65mg (miligrams)

Also, the problem is asking about how many aspirin are in 5 gr (grains), so you should use a conversion factor, as follows:

-First you should put the quantity you need to convert:

5grAspirin

-Then you write the denominator of the conversion factor that must have the same units that you want to convert, in this case gr:

5grAspirin*\frac{}{1grAspirin}

-Then you write the numerator with the units that you want to obtain and the numerical equivalence between the units, in this case:

5grAspirin*\frac{65mgAspririn}{1grAspirin}

-Finally you multiply numerators and divide by denominators:

5grAspirin*\frac{65mgAspririn}{1grAspirin}=325mgAspririn

8 0
3 years ago
The boiling point of 100 milliliters of water at sea level, vapor pressure 760 mm hg is 100oc. if, under different conditions, t
eimsori [14]
It has to be D. the time needed to boil the water decreased

7 0
3 years ago
Read 2 more answers
What is Industrial chemistry?​
mel-nik [20]

Answer:

study of chemical used in industries

6 0
3 years ago
Question 9 of 10
DanielleElmas [232]

Answer:

its d, forming a hypothesis is always one of the first things you do, and d is the best answer from these 4

8 0
2 years ago
Read 2 more answers
Other questions:
  • Select the correct answer. Given: 2Al + 6HCl → 2AlCl3 + 3H2 If the chemical reaction produces 129 grams of AlCl3, how many grams
    15·1 answer
  • Which change will create a more dilute solution?
    5·2 answers
  • Which atom in the ground state has a partially filled second electron shell?
    8·2 answers
  • A base is a substance that accepts protons. true or false?
    8·2 answers
  • Consider the following system at equilibrium: 2A(aq)+2B(aq)⇌5C(aq) Classify each of the following actions by whether it causes a
    8·1 answer
  • Metals react with oxygen to give oxides with the general formula MxOy. What is a balanced chemical equation for the reaction of
    8·2 answers
  • Why Thioacetamide is heated?
    7·2 answers
  • Solid iron metal reacts with solid sulfur at room temperature to produce solid iron (ll) sulfide? Express as a chemical equation
    10·1 answer
  • Julio measured the weight of a grain of sand and found it to be 3.5 times 10 Superscript negative 10 kg. He also measured the we
    10·1 answer
  • Li2SO4 _____ an electrolyte in solution.<br> A. Is <br> B. Is not
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!