A beaker contains a sample of water with a mass of 325 grams. The water in the beaker

Chemistry

1 answer:

alexira [117]3 years ago

5 0

Answer: a

Explanation:

Bc I just did it and yeah

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Do metals donate or accept electrons? what do they become after they donate/accept electrons?

valentinak56 [21]

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4 years ago

A student dissolves 3.9g of aniline (C6H5NH2) in 200.mL of a solvent with a density of 1.05 g/mL . The student notices that the

Tresset [83]

Answer:

a. Molarity= $M =2.1x10^{-1}M$

b. Molality= $m=2.0x10^{-1}m$

Explanation:

Hello,

In this case, given the information about the aniline, whose molar mass is 93g/mol, one could assume the volume of the solution is just 200 mL (0.200 L) as no volume change is observed when mixing, therefore, the molarity results:

$M=\frac{n_{solute}}{V_{solution}} =\frac{3.9g*\frac{1mol}{93g} }{0.2L} =2.1x10^{-1}M$