How many grams of CuCl are produced from 78.9g of HCl?

2CuCl + H2S --> Cu2S + 2HCl

The mass of CuCl is 214.2 grams

Explanation:

Step 1: Data given

Mass of HCl = 78.9 grams

Molar mass HCl = 36.46 g/mol

Molar mass of CuCl = 99.0 g/mol

Step 2: The balanced equation

2CuCl + H2S → Cu2S + 2HCl

Step 3: Calculate moles HCl

Moles HCl = mass HCl / molar mass HCl

Moles HCl = 78.9 grams / 36.46 g/mol

Moles HCl = 2.164 moles

Step 4: Calculate moles CuCl

For 2 moles CuCl we need 1 mol H2S to produce 1 mol Cu2S and 2 moles HCl

For 2.164 moles HCl we'll need 2.164 moles CuCl

Step 5: Calculate mass CuCl

Mass CuCl = moles CuCl * molar mass CuCl

Mass CuCl = 2.164 moles * 99.0 g/mol

Mass CuCl = 214.2 grams

The mass of CuCl is 214.2 grams

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.