Question

If the density of methanol is 0.793 kg L–1, what is its volume needed for making 2.5 L of its 0.25 M solution?

Solution

Correct option is

25.22mL

 

Molar mass of methanol (CH3OH) =32 g mol–1 = 0.032 kg mol–1

Molarity of the given solution   

Applying                                   M2V2

                   (Given solution)   (solution to be prepared)

    

                                                              = 25.22 mL

SIMILAR QUESTIONS

Q1

How many grams of NaOH should be dissolved to make 100 cm–3 of 0.15 M NaOH solution? 

Q2

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Q3

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Q4

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Q5

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Q6

Calculate the mass of sodium acetate (CH3COONa) required to make500mL of 0.375 molar aqueous solution. Molar mass of sodium acetate is 82.0245 g mol–1

Q7

Calculate the concentration of nitric acid in moles per litre in a sample which has a density, 1.41 g ml–1and mass per cent of nitric acid in it being 69%.

Q8

How much copper can be obtained from 100 g of copper sulphate(CuSO4)? (Atomic mass of Cu =63.5amu) 

Q9

What is the concentration of sugar if its 20 g are dissolved in enough water to make a final volume up to 2 L?

Q10

What will be the mass of one12C atom in g?