Stoichiometry Gas

Write the balanced equation for the reaction between aluminum and hydrogen sulfate to form aluminum sulfate and hydrogen gas. How many grams of aluminum sulfate would be formed if 250g of hydrogen sulfate completely reacted with aluminum?

• 0.85 g

• 145.4 g

• 290.8 g

• 436.2 g

Tags

NGSS.HS-PS1-7

The limiting reactant

• slows the reaction down

• is used up first

• is the reactant that is left over

• controls the speed of the reaction

What is the first thing you must do to solve a stoichiometry problem?

• Write a Balanced Equation

• Panic

• Write an Unbalanced Equation

• Avogadro's Number

Aluminium reacts with hydrochloric acid. How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?

• 13

• 8.8

• 0.99

• 1.0

Tags

NGSS.HS-PS1-7

What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium?

• 62.0 L

• 0.12 L

• 2.77 L

• 1.15 L

Which mole ratio is correct for the given chemical equation?

• 2 mol N₂ to 5 mol N₂O₅

• 2 mol N₂ to 2 mol N₂O₅

• 5 mol O₂ to 2 mol NO₂

• None are correct.

Tags

NGSS.HS-PS1-7

What is the limiting reagent in the picture?

• HCl

• H2

• Cl2

Tags

NGSS.HS-PS1-7

Assume that 5.6 L H2 at STP reacts with excess CuO according to the following equation: CuO (s) + H₂ (g) ---> Cu (aq) + H₂O (l) How many moles of Cu are produced?

• 0.250 mol

• 2.50 mol

• 25.0 mol

• 25.00000 mol

Tags

NGSS.HS-PS1-7

Mole ratios are obtained from the

• balanced chemical equation

• periodic table

• molar mass

What is the Molar Volume?

• 22.4 liters

• 2.24 L

• 22.4 L/mole

• 2.24 L/mole