Mole Jeopardy Moles and Grams Avagadro!Percent Composition Empirical Formula Molecular Formula

When you see “g” in a conversion factor, you should do what? Category 1 – 10 points

The molar mass is the mass of 1 ______ of atoms. Category 1 – 20 points

What tool do we need to use to find molar mass? Category 1 – 30 points

What is the mass of 3.5 moles of NaOH? Category 1 – 40 points

How many moles of NaCl are in 34.2 g of NaCl? Category 1 – 50 points

A mole of substance contains how many particles? Category 2 – 10 points

When writing conversion factors, what number always pairs with mol? Category 2 – 20 points

Just as 12 eggs = a dozen, __________ representative particles = a mole Category 2 – 30 points

How many moles of magnesium is 1.25 X atoms of magnesium? ? Category 2 – 40 points

Convert 32.1 g CH 4 to molecules. Category 2 – 50 points

To calculate % composition, we use what equation? mass of _________ % Composition = mass of _________ Category 3 – 10 points

What is the first thing you have to do when given a % composition problem? Category 3 – 20 points

Find the % composition of C 3 H 8. Category 3 – 30 points

What is the percent of nitrogen in NH 3 ? Category 3 – 40 points

What is the percent of sodium in NaCl? Category 3 – 50 points

An empirical formula gives the lowest ______ - ______ ratio of elements in a compound. Category 4 – 10 points

In empirical formula problems, you will be given masses of elements. The first thing you should do is what? Category 4 – 20 points

The 2 nd step in an empirical problem is to do what? Category 4 – 30 points

Find the empirical formula. A compound contains 9.31g of Ag and 0.69g of O. Category 4 – 40 points

A compound contains 25.9% N and 74.1% O. Find the empirical formula. Category 4 – 50 points

Can a molecular formula and an empirical formula be the same? Category 5 – 10 points

TRUE OR FALSE Several compounds can have the same empirical formula, but different molecular formulas. Category 5 – 20 points

TRUE OR FALSE The empirical formula could be triple the molecular formula. Category 5 – 30 points

Find the molecular formula of… A compound with an empirical formula of C 2 H 8 N and a molar mass of 46 grams per mole. Category 5 – 40 points

Find the molecular formula of… A compound with an empirical formula of CFBrO and a molar mass of grams per mole. Category 5 – 50 points