Chemistry

Chemical Quantities and nuclear

100

What is the molar mass of water (H₂0)?

18.016 grams per mole

200

How many moles are there in 49 grams of sulfuric acid (H₂SO₄)?

0.5 moles

300

How many molecules are present in 9 grams of water (H₂O)?

3.011x10³

400

What is the percent composition of each element in water (H₂O)?

11.11% or 88.89%

500

You have 100mL of a 2.0M stock solution of NaCl. You need to make 500 mL of a 0.5 M NaCl solution. how many mililiters of the stocl solution do you need to silute?

125 mL

Stoichiometry

100

If you have 5 moles of O₂ ,how many moles of H₂O will be produced?

10 moles

200

How many grams are there in 2.5 moles of water (H₂O)?

45 grams

300

If 10.0 grams of methane (CH₄) are burned in excess oxygen, how many grams of water (H₂O) will be produced?

22.45 grams

400

If 5 liter of nitrogen gas (N₂) react completely with hydrogen gas (H₂) to form ammonia (NH₃), how many liters of ammonia will be produced?

10 liters

500

If you have 12 grams of hydrogen and 71 grams of chlorine, how many grams of hydrochloric acid can be produced?

73 grams

Acid/Bases chemistry

100

Name the following acid: HBr(aq)

Hydrobromic acid

200

Name the compound: NaCl

Sodium chlorine

300

Write the chemical formula for hydroiodic acid

Hl(aq)

400

Write the chemical formula for potassium hydroxide

KOH

500

Is hydrochloric acid (HCl) a strong acid or a weak acid?

Strong acid