| Moles to Grams | ||
| #1 | How many atoms of Oxygen are there in 18.0 g of water? | 6.02 x 10^23 |
| #2 | How many atoms of Hydrogen are there in 18.00 g of water? | 1.204 x 10^24 |
| #3 | What is the mass of 1.0 mole of O2? | 32 g |
| #4 | What is the mass of 2.00 mol of Sulfuric acid (H2SO4)? | 196 g |
| #5 | 3.00 L of a gas has a mass of 2.00 g. What is the molecular mass? | 14.9 g/mol |
| Formulas and Molar Mass | ||
| #1 | Write the formula and molar mass of carbon dioxide (2 SF) | CO2 44 g |
| #2 | Write the formula and molar mass of aluminum oxide (3 SF) | Al2O3 102 g |
| #3 | Write the formula and molar mass of zinc II Chloride (4 SF) | ZnCl2 136.4 g |
| #4 | Write the formula and molar mass of sulfuric acid (2 SF) | H2SO4 98 g |
| #5 | Write the formula and molar mass of octane (3 SF) | C8H18 114 g |
| Balancing Word Equations | ||
| #1 | Silver Iodide reacts with Sodium sulfide in a double replacement reaction | 2 AgI + 1 Na2S --> 1 Ag2S + 2 NaI |
| #2 | Dissolved Silver nitrate reacts with aqueous sodium phosphate in a double replacement reaction yielding a precipitate | 3AgNO3 + Na3PO4 --> Ag3PO4 (s) +3NaNO3 (aq) |
| #3 | Iron II sulfide reacts with oxygen to make Iron oxide and sulfur dioxide | 2FeS + 3O2 --> 2 FeO + 2SO2 |
| #4 | Barium nitride reacts with water to form barium hydroxide and ammonia (NH3) | 1 Ba3N2 + 6 H2O --> 3 Ba(OH)2 + 2 NH3 |
| #5 | Phosphorus pentachloride reacts with water to form phosphoric acid and hydrochloric acid. | 1 PCl5 + 4 H2O --> 1 H3PO4 + 5 HCl |
| Metric to English Conversions | ||
| #1 | 50.0 kg = ____ lbs. (4 Sig Figs in answer) | 110.2 lbs. |
| #2 | 100.0 m = _____ yds. | 109.4 yds. |
| #3 | 300. ml = ___ cups | 1.27 cups |
| #4 | 523 mm = ______ in. | 20.6 in. |
| #5 | 30.0 miles/hr. = __________ m/sec | 13.4 m/sec |
| Potpourri | ||
| #1 | What is the best movie your whole group has seen? | varies |
| #2 | How many miles are there in a light year? (light travels at 3.0 X 10^8 m/sec) | 5.9 x 10^12 miles |
| #3 | In the sun, what type of nuclear reaction is happening? | fusion |
| #4 | What ultimately makes a person happy? | varies |
| #5 | LiOH + HBr --> LiBr + H2O If you start with 10.0 grams of lithium hydroxide, how many grams of lithium bromide will be produced? Assume there is an excess of hydrogen bromide in the reaction. | 36.3 grams |
| Final Question | |
| Magnesium reacts with sodium fluoride in a single replacment reaction. If you start with 5.5 grams of sodium fluoride with an excess of magnesium, how many grams of magnesium fluoride will be produced? | 4.1 grams |