KiarahBearredavia2w9
contestada

Passing an electric current through a sample of water (H2O) can cause the water to decompose into hydrogen gas (H2) and oxygen gas (O2) according to the following equation.. . 2H2O= 2H2 + O2 . . The molar mass of H2O is 18.01 g/mol. The molar mass of O2 is 32.00 g/mol. What mass of H2O, in grams, must react to produce 50.00 g of O2?. 14.07. 23.05. 28.14. 56.28

Respuesta :

taskmasters
The balanced chemical reaction is:

2H2O= 2H2 + O2

We are given the amount of oxygen to be produced in the reaction. The starting point for the calculations will be this amount.

50 g ( 1 mol O2 / 32 g O2 ) ( 2 mol H2O / 1 mol O2 ) ( 18.01 g H2O / 1 mol H2O) = 56.28 g of H2O is needed.

Therefore, the correct answer is the last option.

56.28 g of H2O is needed.

What is molar mass?

The entire mass of the atoms required to form a molecule per mole, expressed in grams, is what makes up the molar mass, also known as the molecular weight. Grams per mole are used to measure molar mass.

Given

The balanced chemical reaction is:

2H2O= 2H2 + O2

We are given the amount of oxygen to be produced in the reaction. The starting point for the calculations will be this amount.

50 g ( 1 mol O2 / 32 g O2 ) ( 2 mol H2O / 1 mol O2 ) ( 18.01 g H2O / 1 mol H2O) = 56.28 g of H2O is needed.

To know more about molar mass refer to :

https://brainly.com/question/837939

#SPJ2

Otras preguntas