Question

if 20 gram of calcium carbonate is dissolved in 5 litre find the molarity
please guys give me its answer​

Answer 1

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Answer....

To get the molarity, you divide the moles of solute by the litres of solution. ... 1 mol of NaOH has a mass of 40.00 g, so ... If the [H3O +] in a solution is 2⋅10−5 M, what is the [OH−]

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Answer 2

Answer:

$molarity = \frac{w}{m \times volume}$

Explanation:

weight = 20 g

Volume = 5 L

Molecular mass = 40 + 12 + 16 x 3 = 100 g/mol

$molarity = \frac{20}{100 \times 5} = \frac{20}{500} = 0.04 \: molar$

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