U6 Warm up - Stoichiometry Introduction

Front

What is Avogadro's number?

Back

Avogadro's number is 6.02 x 10^23, which is the number of particles found in one mole.

Front

How many steps are there when converting from gram to gram in stoichiometry?

Back

There are 3 steps when converting from gram to gram.

Front

What is the conversion factor for moles in 28 grams of CO2?

Back

1 mol = 44.01 g.

Front

What is the ratio of moles of Mg to moles of Fe in the reaction 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe?

Back

The ratio is 3 mol Mg / 2 mol Fe.

Tags

NGSS.HS-PS1-7

Front

What is the first step in completing a stoichiometry problem?

Back

The first step is writing the balanced equation.

Front

Define stoichiometry.

Back

Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced equation.

Tags

NGSS.HS-PS1-7

Front

What is a mole in chemistry?

Back

A mole is a unit that measures the amount of substance, equivalent to Avogadro's number of particles.

Front

What is molar mass?

Back

Molar mass is the mass of one mole of a substance, usually expressed in grams per mole (g/mol).

Tags

NGSS.HS-PS1-7

Front

What is the purpose of a balanced chemical equation?

Back

A balanced chemical equation ensures that the number of atoms for each element is the same on both sides of the reaction.

Tags

NGSS.HS-PS1-7

Front

What does the term 'conversion factor' mean in stoichiometry?

Back

A conversion factor is a ratio used to convert between different units of measurement.