Which statement best explains how the solution
should be made?
Add 1.5 mL of 0,50 M H2SO4 to 10.5 mL of
water to get 12 mL of 4 M H2SO4
Add 1.5 mL of 4.00 M H2SO4 to 10.5 mL of
water to get 12 mL of 0.50 M H2SO4.
Add 1.5 mL of 4.00 M H2SO4 to 12 mL of
water to get 0.50 M H2SO4
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Ответ:
0.81M
Explanation: from NaCl concentration c(Cl-) = 0.27 M and from
MgCl2 c(Cl-) = 0.54 M, because there comes twice as much chloride ions.
add concentrations together c= 0.81 M