Mol to mol and massleft =massright

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

If a reaction starts with 20g of reactants, how much mass should the products have?

Back

The products should have a total mass of 20g.

Front

In the reaction AB -> A + B, if AB has 12g and B has 5g, how much should A weigh?

Back

A should weigh 7g.

Front

What is the mole ratio in the reaction C6H12O6 + 6O2 ➝ 6CO2 + 6H2O?

Back

The mole ratio of C6H12O6 to H2O is 1:6.

Front

How many moles of C6H12O6 are produced when 3 moles of water are formed?

Back

0.5 moles of C6H12O6 are produced.

Front

In the reaction 2KClO3 + energy → 2KCl + 3O2, how many moles of KClO3 are needed to produce 21 moles of O2?

Back

14 moles of KClO3 are needed.

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 6.022 x 10^23 particles (atoms, molecules, etc.).

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the Law of Conservation of Mass is upheld, meaning the number of atoms for each element is the same on both sides of the equation.

Front

What is the formula to calculate moles from mass?

Back

Moles = Mass (g) / Molar Mass (g/mol).

Front

What is molar mass?

Back

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