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3 years ago

A 650.0 g hard-water sample contains 101 mg Ca.what is this concentration in parts per million

Chemistry

1 answer:

ki77a [65]3 years ago

8 0

Answer:

= 155 ppm

Explanation:

PPM also refers to parts per million, it represents a low concentration of a solution. It represents 0.001 gram or a milligram in a 1000 mL, equivalent to 1 mg per liter

Given that;

101 mg of Ca in 650.0 g of water

1 ppm = 1 mg/L

650 g = 650 mL = 0.65 L

Therefore;

= 101 mg/ 0.65 L

= 155.38 mg/L

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kkurt [141]

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Explanation :

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Weight by weight (w/w) means that the mass of solute present in 100 gram of solution.

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stiks02 [169]

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dmitriy555 [2]

Answer:

See explanation.

Explanation:

Hello!

In this case, when having the cationic and anionic species with the specified charges, in order to abide by the net charge rule, we need to exchange the charges in the form of subscripts and without the sign, just as shown below: $X^{m+}Y^{n-}\rightarrow X_nY_m$

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