You have 2.0 x 10²² moles of HCl in the equation below. How many moles of CaCl₂ will you make?

1 Answer
Mar 17, 2018

Well, clearly you will make 1.0xx10^22*mol of CaCl_2...

Explanation:

And we interrogate the stoichiometric equation....

Ca(s) + 2HCl(aq) rarr CaCl_2(aq) + H_2(g)uarr

And given two equiv of hydrogen chloride we make one equiv of calcium chloride....

...a mass of ..........

1.0xx10^22*molxx110.98*g*mol^-1xx10^-3*kg*g^-1=1.11xx10^21*kg

...and this is not an insignificant mass of stuff...