5) What is the concentration in mM of 4.80 g of citric acid (CoHsO7) dissolved in...

Question

Question

5) What is the concentration in mM of 4.80 g of citric acid (CoHsO7) dissolved in water to make 1.00 L? (The molar mass of citric acid is 192 g/mole)

6) The concentration of sugar in a soft drink is measured to be 10.5%. How many grams of sugar are in 125 g of the drink?

Answer 1

Answer #1

5) Formula of Citric Acid is C₆H₈O_7. I

Molecular Mass of hydrated citric acid: 192 g. Concentration of citric acid=

Moles of citric acid=

Molarity (in M)=

Molarity (mM)= 0.025 x 10⁶ mM

6) 10.5% sugar is present in a soft drink, ie;

10.5 g sugar in 100 g of soft drink

sugar is 1 g soft drink =

sugar is 125 g of soft drink= 125 x 0.105 = 13.125 g

Answer 2

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