Stoichiometry, LR, percent yield Regular Chem

Stoichiometry, LR, percent yield Regular Chem

9th - 12th Grade

18 Qs

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Stoichiometry, LR, percent yield Regular Chem

Stoichiometry, LR, percent yield Regular Chem

Assessment

Quiz

Chemistry

9th - 12th Grade

Medium

Created by

Jeanine Stantesly

Used 3+ times

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2 NaClO3 (s) --> 2NaCl (s) +3 O2 (g)  
12.00 moles of NaClO3 will produce how many grams of O2?

256 g

288 g

576 g

18 g

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

CH4 + 2 O2 → CO2 + 2 H2O
How many moles of carbon dioxide are produced from the combustion of 110 g of CH4?

13.7 mol
2.75 mol
6.11 mol
6.85 mol

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2Na + 2H2O → 2NaOH+ H2
How many grams of hydrogen are produced if 120 g of Na are available?

5.2 g
2.6 g
690 g
45 g

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the

theoretical yield
mole ratio
actual yield
percentage yield

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the measured amount of a product obtained from a chemical reaction?

mole ratio
theoretical yield
percentage yield

experimental yield

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A chemist interested in determining the success of a chemical reaction would calculate the

mole ratio
rate of reaction
percent yield

molar mass

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is an Excess Reactant?

amount you end with
what you run out of first
what you have left over
what you start with

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