3 years ago

Calculate the atmospheric pressure if the boiling point of water is 81 degrees Celsius.

Chemistry

1 answer:

Korolek [52]3 years ago

6 0

if the boiling point is 81 then the atmospheric pressure is 365 mmHg

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29.47 mL of a solution of the acid HBr is titrated, and 72.90 mL of 0.2500-M NaOH is required to reach the equivalence point. Ca

Klio2033 [76]

The original concentration of the acid solution is 6.175 $\times$ 10^-4 mol / L.

<u>Explanation:</u>

Concentration is the ratio of solute in a solution to either solvent or total solution. It is expressed in terms of mass per unit volume

HBr + NaOH -----> NaBr + H2O

There is a 1:1 equivalence with acid and base.

Moles of NaOH = 72.90 $\times$ 10^-3 $\times$ 0.25

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[ HBr ] = moles of base / volume of a solution

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