How many grams of HBr must be dissolved to make 1.0…

How many grams of HBr must be dissolved to make 1.0…

How many grams of HBr must be dissolved to make 1.0 L of 2.0 M HBr solution?
how many grams of NaCl are dissolved in 1.0 L of a 1.5 M NaCl solution?
What is the pH for the following solutions, 1.0 x 10-2 M HCl