Please help fast :/ how many moles are present in 60 grams of hydrochloric acid , HCI ?

a : 1.40 moles
b : 36.45 moles
c : 1.65 moles
d : 60 moles

C- 1.65 moles

Explanation:

HCl = 1 + 35.45 = 36.45 g/mol    

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.