Respuesta :
[tex]100\%:0.0085\%=x:1.2
\\0.0085\%x=1.2\times100\%
\\
\\x= \frac{1.2\times100\%}{0.0085\%}
\\
\\x=14,117.65\text{ g}[/tex]
Answer : The amount of water present in 1.2 grams of calcium is, [tex]1.4\times 10^4[/tex] grams
Step-by-step explanation :
As we are given that a hard water sample contains 0.0085% Ca by mass that means, 0.0085 grams of calcium ion in 100 grams of water.
Now we have to determine the amount of water in 1.2 grams of calcium ion.
As, 0.0085 grams of calcium ion present in 100 grams of water
So, 1.2 grams of calcium ion present in [tex]\frac{1.2}{0.0085}\times 100=1.4\times 10^4[/tex] grams of water
Therefore, the amount of water present in 1.2 grams of calcium is, [tex]1.4\times 10^4[/tex] grams
