A 0.250g sample of citric acid dissolved in 25.0 ml of, Ask an Expert

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a)what temperature change would you expect in which 50.0 mL of 2.0M HCl is combined with 80.0 mL of 2.0 M NaoH in calorimeter with a heat capacity of 10J/gC? Show your work.

b) Citric acid, can be obtained from lemon juice contains C, H, and O. It is 37.5% Carbon and 4.17% hydrogen by mass. Citric acid has three acidic hydrogens per molecule. A 0.250g sample of citric acid dissolved in 25.0 mL of water requires 37.20 mL of 0.105 M NaOH for complete neutralization. What is the molecular formula of citric acid?

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