Stoichiometry

Stoichiometry

Assessment

Flashcard

Chemistry

10th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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12 questions

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1.

FLASHCARD QUESTION

Front

Balance the equation: C8H18 + O2 → CO2 + H2O

Back

1, 12.5, 8, 9

2.

FLASHCARD QUESTION

Front

The __________ in a balanced equation reveals the mole ratios of the substances involved.

Back

coefficients

3.

FLASHCARD QUESTION

Front

How many moles of water are formed when 2.46 grams of water is produced from the combustion of butane, C4H10?

Back

0.137 mol

4.

FLASHCARD QUESTION

Front

Combustion of butane produced 2.46 grams of water. How many moles of butane burned?

Back

0.027 mol

5.

FLASHCARD QUESTION

Front

Combustion of butane produced 2.46 grams of water. How many grams of butane burned? Options: 713.4 gram, 0.042 gram, 1.57 gram, 7.13 gram

Back

1.57 gram

6.

FLASHCARD QUESTION

Front

The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
2 C4H10 + 13O2 -------> 8CO2 + 10H2O How much oxygen was used up in moles? Options: 0.178 mol, 0.137 mol, 3.20 mol, 0.355 mol

Back

0.178 mol

7.

FLASHCARD QUESTION

Front

Combustion of butane (C4H10) produced 2.46 grams of water. How much oxygen was used up in grams?
Equation: 2 C4H10 + 13O2 → 8CO2 + 10H2O
Options: 2.85 gram, 5.70 gram, 4.38 gram, 2.19 gram

Back

5.70 gram

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