Question

Какой объем водорода выделится при взаимодействии с водой кальция количеством вещества 1,5 моль? помогите!

Answer 1

Ca  +2H2O=Ca(OH)2 +H2, если в реакцию вступило 1,5 моля кальция , то согласно реакции водорода получится тоже 1,5 моля, следовательно его объём будет 1,5*22,4=33,6 литра.

Answer 2

Hydrogen Gas Produced from the Reaction of Calcium with Water

When calcium reacts with water, hydrogen gas is produced according to the following chemical equation:

Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g)

To find the volume of hydrogen gas produced when 1.5 moles of calcium react with water, we can use the ideal gas law equation:

PV = nRT

Where: - P = pressure - V = volume - n = number of moles - R = ideal gas constant - T = temperature

We can assume standard temperature and pressure (STP) conditions for this calculation, where the pressure is 1 atmosphere and the temperature is 273.15 K.

Using the molar volume of a gas at STP (22.4 L/mol), we can calculate the volume of hydrogen gas produced.

Calculation

The molar ratio of calcium to hydrogen gas in the balanced chemical equation is 1:1. This means that for every mole of calcium that reacts, 1 mole of hydrogen gas is produced.

Given: - Number of moles of calcium (n) = 1.5 moles

Using the molar volume of a gas at STP: - Volume of hydrogen gas produced = 1.5 moles * 22.4 L/mol = 33.6 L

Therefore, when 1.5 moles of calcium react with water, approximately 33.6 liters of hydrogen gas will be produced