Question

1.  You have 10 grams of HCl, how many moles of HCl do you have?  
  HCl  +  Ba(OH)2  →  H2O  +  BaCl2

Answer 1

Explanation:

36.5gm (Molar mass) = 1mole

1 gram = 1/36.5 mole

10grams =(1/36.5) x 10 moles

= 0.027 x 10 moles

=0.27moles