Stoichiometry: Grams, Liters, and Moles

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

Answer explanation

Tags

NGSS.HS-PS1-7

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

Answer explanation

Tags

NGSS.HS-PS1-7

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

Answer explanation

Tags

NGSS.HS-PS1-7

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

Answer explanation

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

Answer explanation

Tags

NGSS.HS-PS1-7

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

Answer explanation

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

Answer explanation

1 Ag₂S + 2 HCl → 2 AgCl + 1 H₂S

If 225 grams of AgCl are produced, how many moles of Ag₂S were reacted?

*Round answer to three (3) significant figures. DO NOT FORGET UNITS

Answer explanation

2 ZnO + 2 Cl₂ → 2 ZnCl₂ + 1 O₂

If 443.57 grams of ZnO are reacted, how many grams of O₂ will be produced?

*Round answer to three (3) significant figures. DO NOT FORGET UNITS

Answer explanation

Tags

NGSS.HS-PS1-7

1 Hg₂CO₃ → 1 Hg + 1 HgO + 1 CO₂

If 1.3091 moles of Hg are produced, how many grams of Hg₂CO₃ were reacted?

*Round answer to three (3) significant figures. DO NOT FORGET UNITS

Answer explanation

Tags

NGSS.HS-PS1-7