Stoichiometry Volume

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

How many liters of ammonia are produced at STP if 80.28 grams of hydrogen gas are reacted in excess nitrogen gas?

• 5352 L NH₃

• 594.7 L NH₃

• 1.185 L NH₃

• 1198 L NH₃

Tags

NGSS.HS-PS1-7

How many liters of nitrogen gas are needed to completely react 90.38 L of hydrogen gas at STP?

• 2022 L N₂

• 0.03323 L N₂

• 30.09 L N₂

Tags

NGSS.HS-PS1-7

Hydrogen gas will react with nitrogen gas to form ammonia (nitrogen trihydride). If 16.0 L of hydrogen gas is reacted with excess nitrogen gas at STP, what volume of ammonia will form?

• 10.7 L NH₃

• 24.0 L NH₃

• 16.0 L NH₃

• 32.0 L NH₃

A solution is made by dissolving 2.355 g of sulfuric acid in water. The total volume of the solution is 50.0 mL. What is the molar concentration of the sulfuric acid solution in mol acid/L soln.? (hint: don't forget to change mL to L)

• 2.08 M

• 0.480 M

• 0.833 M

• 4.80 x 10^-4 M

You want to make 0.250 L of sodium chloride solution at a concentration of 0.800M. What mass of NaCl is needed to dissolve in 1 L of solution?

• 292 g NaCl

• 187 g NaCl

• 11.7 g NaCl

• 0.00342 g NaCl

Tags

NGSS.HS-PS1-7

Lead (II) nitrate is reacted with potassium iodide. What volume of 0.10 M KI should we react with excess lead (II) nitrate to form 15.0 g of precipitant?

• 1.63 mL

• 0.65 mL mL

• 6.51 x 10^-6 mL

• 651 mL

Volume of 2 moles of oxygen gas

• 24 dm³

• 12 dm³

• 48 dm³

• 48 cm³

What is the volume of 1 mole of an ideal gas at STP?

• 22.4 L

• 24.0 L

• 20.0 L

• 18.0 L

• 2 L

• 4 L

• 1 L

• 8 L