Many crops are grown in California's Central Valley. The valley was foggy each morning last December.

Weather or climate on IXL

I’m not sure if it’s weather or climate

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Ответ:

jokihahorton510

18.08.2020

Chemistry

The percentage concentration of the solution (%mass)= 20%

Further explanation

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

$\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%$

Calculate the percentage concentration of the solution obtained by dissolving 30 g of salt in 120 g of water.

mass solute = 30 g

mass solution = 30 + 120 = 150 g

$\tt \%mass=\dfrac{30}{150}\times 100\%=20\%$

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Many crops are grown in California's Central Valley. The valley was foggy each morning last December. Weather or climate on IXL I’m not sure if it’s weather or climate