Stoichiometry: Grams, Liters, and Moles
Authored by Kyle Cook
Chemistry
10th Grade
NGSS covered
Used 24+ times
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20 questions
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1.
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1 min • 1 pt
2 H2 + 1 O2 → 2 H2O
How many grams of oxygen gas will be required to completely react with 4 grams of hydrogen gas?
*Round answer to three (3) significant figures. DO NOT FORGET UNITS
(a)
Answer explanation
Tags
NGSS.HS-PS1-7
2.
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1 min • 1 pt
2 H2 + 1 O2 → 2 H2O
How many grams of dihydrogen monoxide will be produced if 4 grams of hydrogen gas react?
*Round answer to three (3) significant figures. DO NOT FORGET UNITS
(a)
Answer explanation
Tags
NGSS.HS-PS1-7
3.
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1 min • 1 pt
1 Sc2O3 + 3 H2O → 2 Sc(OH)3
If 6.85 grams of H2O are reacted, how many grams of Sc(OH)3 will be produced?
*Round answer to three (3) significant figures. DO NOT FORGET UNITS
(a)
Answer explanation
Tags
NGSS.HS-PS1-7
4.
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1 min • 1 pt
1 H2SO4 + 2 RbOH → 1 Rb2SO4 + 2 H2O
If 468.69 grams of H2SO4 are reacted, how many moles of Rb2SO4 will be produced?
*Round answer to three (3) significant figures. DO NOT FORGET UNITS
(a)
Answer explanation
5.
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1 min • 1 pt
2 AlBr3 + 3 Cl2 → 2 AlCl3 + 3 Br2
If 1.8691 moles of Cl2 are reacted, how many grams of AlCl3 will be produced?
*Round answer to three (3) significant figures. DO NOT FORGET UNITS
(a)
Answer explanation
Tags
NGSS.HS-PS1-7
6.
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1 min • 1 pt
3 Cu + 8 HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H2O
If 197.21 grams of H2O are produced, how many moles of NO will also be produced?
*Round answer to three (3) significant figures. DO NOT FORGET UNITS
(a)
Answer explanation
7.
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1 min • 1 pt
3 Hg(OH)2 + 2 H3PO4 → 1 Hg3(PO4)2 + 6 H2O
If 0.8796 moles of H3PO4 are reacted, how many grams of Hg(OH)2 will also be reacted?
*Round answer to three (3) significant figures. DO NOT FORGET UNITS
(a)
Answer explanation
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