35 g of histidine is dissolved in 260 mℓ

mℓ of distilled water to give a solution with a final volume

of 264. mℓ

mℓ. The relative molecular weight of histidine is 155.2. Give answers to at least 3 significant figures.

(a) What is the concentration in %(w/v)?

Answer =   %(w/v)

(b) What is the concentration in M ?

Answer =   M

(c) What is the concentration in %(w/w)? (Assume that 1 mℓ

mℓ of water weighs 1 g).

Answer =   %(w/w)

 

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