all the chemistry equations

What is Mr in chemistry?

Mr (relative molecular mass) is the sum of the relative atomic masses of all atoms in a molecule.

How do you calculate moles?

Moles can be calculated using the formula: moles = mass ÷ Mr.

What is the formula for mass in terms of moles and Mr?

Mass can be calculated using the formula: mass = moles × Mr.

How do you calculate concentration in g/dm³?

Concentration can be calculated using the formula: concentration (g/dm³) = mass (g) ÷ volume (dm³).

How do you calculate volume in dm³ based on moles?

Volume can be calculated using the formula: volume (dm³) = moles × 24.

How do you calculate percentage yield?

Percentage yield is calculated using the formula: percentage yield = (actual yield ÷ theoretical yield) × 100.

What is atom economy?

Atom economy is calculated using: atom economy = (Mr of desired product ÷ total Mr of all products) × 100.

How is the rate of reaction defined?

Rate of reaction can be calculated as: rate of reaction = amount of reactant used ÷ time or rate of reaction = amount of product formed ÷ time.

What does Q represent in relation to electric charge?

Q represents electric charge and can be calculated using the formula: Q = I × t.

How do you calculate percentage concentration?

Percentage concentration can be calculated using the formula: percentage concentration = (mass of solute ÷ mass of solution) × 100.

What is the formula to find the mean?

The mean is calculated using the formula: mean = total ÷ number of results.