538.💎Stoich Flashcardizz

Front

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

Back

3 mol MgO / 2 mol Fe

Front

How many steps are required to convert 356 g of Cl2 into grams of KCl in the reaction: Cl2 + 2 KBr → Br2 + 2 KCl?

Back

3 steps

Front

In the reaction 2 NaClO3 (s) → 2 NaCl (s) + 3 O2 (g), how many stoichiometric steps are needed to convert 12.00 moles of NaClO3 into grams of O2?

Back

2 steps

Front

How many grams of hydrogen are produced from 120 g of Na in the reaction: 2 Na + 2 H2O → 2 NaOH + H2?

Back

5.2 g

Front

In the reaction B2H6 + 3 O2 → 2 HBO2 + 2 H2O, how many stoichiometric steps are required to convert moles of O2 into moles of B2H6?

Back

1 step

Front

Define stoichiometry.

Back

Stoichiometry is the calculation of reactants and products in chemical reactions based on the conservation of mass.

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, reflecting the law of conservation of mass.

Front

What is the molar mass of Cl2?

Back

The molar mass of Cl2 is approximately 70.90 g/mol.

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass of the substance by its molar mass.

Front

What is the significance of the coefficients in a balanced equation?

Back

Coefficients indicate the relative number of moles of each substance involved in the reaction.