Mole to Goal
If you have 6.022 x 1023 atoms of oxygen, how many moles do you have?
What is 1 mole of oxygen atoms?
What is the percent composition of hydrogen in water (H₂O)?
What is 11.11%?
What is the empirical formula for a compound with the molecular formula C₈H₁₈?
What is C₄H₉?
What is the balanced equation for the combustion of propane (C₃H₈)?
What is C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O?
In the reaction 2 H₂ + O₂ → 2 H₂O, which is the limiting reagent if you start with 4 moles of H₂ and 2 moles of O₂?
What is O₂?
What is the number of moles in 50 grams of water (H₂O)? (Molar mass of H₂O = 18 g/mol)
What is 50 grams ÷ 18 g/mol = 2.78 moles of H₂O?
Calculate the percent composition of carbon in glucose (C₆H₁₂O₆).
What is 40.00%?
If the molecular formula of a compound is C₄H₁₀, what is its empirical formula?
What is C₂H₅?
In the reaction of sulfuric acid with sodium hydroxide, H₂SO₄ + NaOH → Na₂SO₄ + H₂O. what is the mole ratio of sodium hydroxide to sodium sulfate? (*Remember to balance the equation first)
What is 2:1?
If 5 grams of reactant A and 10 grams of reactant B react to produce product C, how do you determine the limiting reagent?
What is to calculate the number of moles of each reactant and compare their mole ratios?
How many molecules are in 3 moles of carbon dioxide (CO₂)?
What is 3 moles × 6.022 × 10²³ molecules/mole = 1.8066 × 10²⁴ molecules of CO₂?
Determine the percent composition of nitrogen in ammonium sulfate ((NH₄)₂SO₄).
What is 21.21%?
Calculate the empirical formula for a compound composed of 60% carbon and 40% oxygen by mass.
What is CO?
Calculate the percent yield if 50 grams of product were produced from a reaction that could theoretically produce 70 grams.
What is 71.43%?
In a reaction where 3 moles of A react with 4 moles of B to produce 5 moles of C, which reactant is the limiting reagent if you start with 2 moles of A and 3 moles of B?
What is A?
Convert 2.5 moles of sodium chloride (NaCl) to grams.
What is 2.5 moles × 58.44 g/mol = 146.1 grams of NaCl?
What is the percent composition of sulfur in sulfuric acid (H₂SO₄)?
What is 32.67%?
Determine the empirical formula for a compound that is 40% carbon, 6.71% hydrogen, and 53.29% oxygen.
What is CH₂O?
How many grams of water are produced when 10 grams of hydrogen react with excess oxygen?
What is 90 grams of water?
Given the reaction: 2 H₂ + O₂ → 2 H₂O. If you start with 10 grams of hydrogen (H₂) and 20 grams of oxygen (O₂), which is the limiting reagent?
What is H₂?
How many grams are in 0.75 moles of magnesium chloride (MgCl₂)?
What is 0.75 moles × 95.21 g/mol = 71.41 grams of MgCl₂?
Calculate the percent composition of oxygen in potassium nitrate (KNO₃).
What is 46.67%?
A compound has a molar mass of 78 g/mol and an empirical formula of CH. What is its molecular formula?
What is C₆H₆?
If 2 moles of aluminum react with 3 moles of oxygen, how many moles of aluminum oxide (Al₂O₃) are produced?
What is 1 mole of aluminum oxide (Al₂O₃)?
Given the reaction: 2 Al + 3 Cl₂ → 2 AlCl₃. If you start with 20 grams of aluminum (Al) and 30 grams of chlorine (Cl₂), how many grams of aluminum chloride (AlCl₃) will be produced?
What is 41.2 grams of AlCl₃?