Stoichiometry: Grams-to-Grams
Authored by Lori Young
Chemistry
10th - 12th Grade
NGSS covered
Used 8+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many moles are in 19.82 g Mg?
1.226 mol Mg
481.7 mol Mg
1.000 mol Mg
0.82 mol Mg
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Using the balanced equation below, calculate how many moles of carbon dioxide are produced from the combustion of 110 g of CH4?
CH4 + 2O2 → CO2 + 2H2O
13.7 mol
2.75 mol
6.11 mol
6.85 mol
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Using the balanced equation below, how many grams of H2O will be produced from 150 grams of Fe2O3?
Fe2O3 + 3H2 → 2Fe + 3H2O
50 grams H2O
60 grams H2O
5000 grams H2O
6000 grams H2O
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the first thing you must do to solve a stoichiometry problem?
Balance the chemical equation.
Record yourself singing Kumbaya and send it to your teacher because she loves music and actually likes that song.
Text your friends and tell them you cannot believe your teacher would make you do such a hard assignment.
Not even try to solve the problem so your teacher can guess what you don't understand about stoichiometry.
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If 12.00 moles of NaClO3 will produce how many grams of O2?
NaClO3 (s) → NaCl (s) + O2 (g)
After balancing the equation, 256 g of O2, would be produced.
After balancing the equation, 576 g of O2, would be produced.
After balancing the equation, 288 g O2, would be produced.
After balancing the equation, 942 g of O2, would be produced.
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How many grams of potassium chloride (KCl) can be produced from 356 g of potassium bromide (KBr)?
Cl2 + KBr → Br2 + KCl
(HINT: Don't forget to do STEP 1!)
749 g
223 g
479 g
814 g
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
REVIEW: How many grams are in 7.8 moles of NaCl?
476 grams
460 grams
456 grams
462 grams
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