Assessment $1$

Question $1$

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Marked out of $3\mathrm{.}00$

If water contains $21\mathrm{.}7m\frac{g}{L}Mg$ and $44\mathrm{.}2m\frac{g}{L}$ of Ca What is the contribution of $Mg$ to the water hardness expressed as a concentration of $CaC{O}_3?$

$m\frac{g}{L}$

What is the contribution of $Ca$ to the water hardness expressed as a concentration of $CaC{O}_3?$

$m\frac{g}{L}$

What is the hardness of the water?

$m\frac{g}{L}$