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3 years ago

Please help quick!!!!!

Chemistry

1 answer:

Kazeer [188]3 years ago

6 0

Answer:

he pressure of a given amount of gas is directly proportional to its absolute temperature, provided that the volume does not change (Amontons's law). The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure (Charles's law).

Explanation:

i hope i helped =)

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A chemist prepares a solution of sodium thiosulfate by measuring out of sodium thiosulfate into a volumetric flask and filling t

Volgvan

The question is incomplete, here is the complete question:

A chemist prepares a solution of sodium thiosulfate by measuring out 110. g of sodium thiosulfate into a 350. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's sodium thiosulfate solution. Be sure your answer has the correct number of significant digits.

Answer: The concentration of sodium thiosulfate solution is 1.99 mol/L

Explanation:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

Given mass of sodium thiosulfate = 110 g

Molar mass of sodium thiosulfate = 158.1 g/mol

Volume of solution = 350 mL

Putting values in above equation, we get:

$\text{Molarity of sodium thiosulfate}=\frac{110\times 1000}{158.1\times 350}\\\\\text{Molarity of sodium thiosulfate}=1.99mol/L$

Hence, the concentration of sodium thiosulfate solution is 1.99 mol/L

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SVEN [57.7K]

False, there are five forms of matter; solid, liquid, glass, plasma, and Bose-Einstein condensates.
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