Question

Вычеслите массу меди водорода в граммах которая образуеться в процессе востоновления 8г оксида меди водородом при условии что выход реакции составил 82% от теоретического CuO+H2=Cu+H2O

Answer 1

Ну у меня получилось 6,56 гр) может и не правильно

Answer 2

Calculation of the Mass of Copper Hydrogen in Grams

To calculate the mass of copper hydrogen (CuH) formed in the process of reducing 8 grams of copper oxide (CuO) with hydrogen (H2), we need to consider the stoichiometry of the reaction and the given reaction yield.

The balanced chemical equation for the reaction is: CuO + H2 → Cu + H2O

According to the equation, 1 mole of CuO reacts with 1 mole of H2 to produce 1 mole of Cu and 1 mole of H2O.

To calculate the moles of CuO, we divide the given mass of CuO by its molar mass. The molar mass of CuO is the sum of the atomic masses of copper (Cu) and oxygen (O): Molar mass of CuO = atomic mass of Cu + atomic mass of O

Using the atomic masses from the periodic table, we find: Molar mass of CuO = 63.55 g/mol + 16.00 g/mol = 79.55 g/mol

Now we can calculate the moles of CuO: Moles of CuO = mass of CuO / molar mass of CuO

Substituting the given mass of CuO (8 grams) into the equation: Moles of CuO = 8 g / 79.55 g/mol

Next, we need to consider the reaction yield, which is given as 82% of the theoretical yield. The theoretical yield is the maximum amount of product that can be obtained based on the stoichiometry of the reaction.

To calculate the theoretical yield of CuH, we use the stoichiometry of the reaction. According to the balanced equation, 1 mole of CuO reacts to form 1 mole of CuH.

Therefore, the moles of CuH formed can be calculated as: Moles of CuH = Moles of CuO

Finally, we can calculate the mass of CuH in grams by multiplying the moles of CuH by its molar mass. The molar mass of CuH is the sum of the atomic masses of copper (Cu) and hydrogen (H): Molar mass of CuH = atomic mass of Cu + atomic mass of H

Using the atomic masses from the periodic table, we find: Molar mass of CuH = 63.55 g/mol + 1.01 g/mol = 64.56 g/mol

Now we can calculate the mass of CuH: Mass of CuH = Moles of CuH * molar mass of CuH

Substituting the calculated moles of CuH into the equation, we can find the mass of CuH in grams.

Please note that the given sources do not provide specific information for this particular calculation. Therefore, the above explanation is based on general knowledge of stoichiometry and molar masses.