What is the number of moles in 350g of hydrochloric acid?                  SHOW ALL STEPS FOR FULL MARKS!

Sure, here are the steps to calculate the number of moles in 350g of hydrochloric acid (HCl):

Step 1: Determine the molar mass of HCl. The molar mass of HCl is the sum of the molar mass of Hydrogen (H) and Chlorine (Cl). From the periodic table, the molar mass of Hydrogen is approximately 1g/mol and that of Chlorine is approximately 35.5g/mol. So, the molar mass of HCl = 1g/mol + 35.5g/mol = 36.5g/mol.

Step 2: Use the formula to calculate the number of moles. The formula to calculate the number of moles is:

Number of moles = mass of the substance (in grams) / molar mass of the substance (in g/mol)

Step 3: Substitute the given mass and the calculated molar mass into the formula. Number of moles = 350g / 36.5g/mol = 9.59 moles

So, there are approximately 9.59 moles in 350g of hydrochloric acid.