You will be given a stock solution of Cuclh, copper chloride, at 50 mg/mL. 1) Pl

Question

You will be given a stock solution of Cuclh, copper chloride, at 50 mg/mL. 1) Please convert the above 50 mg/ml solution to the equivalent molar value. MW CuCl 134.45 g/mol. To 2) Using your answer above, please convert the molar (M) solution to the equivalent millimolar (mM) value. You will need this for the table below. Your answer here is the answer for the final concentration' co In 3) In the table below and using C1V1 C2V2, please complete the calculations necessary to fill in the remainder of the Final concentration' column below. A : 4) Please convert the 50 mg/ml solution to a mass percent (remember 1%-1g / 100ml) lo

Explanation / Answer

CuCl2 stock concentration 50mg/mL, Which is equivalent to 50g/L

1)

Molarity= (weight/molecular weight)/volume (in litres)

Here weight = 50g

Molecular weight =134.45

Volume= 1 litre

Therefore, Molarity of CuCl2 = (50/134.45)/ 1

Molarity = 0.3718 M

2)

1M = 1000mM

Therefore, 0.37M = 371.8mM

4)

50mg/mL

Is equivalent to 5000mg/100ml = 5g/100ml

Since, 1% = 1g/100ml

Therefore, 5g/100ml = 5%

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