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4 years ago

What is the molarity of a solution with 23 moles of solute, and 100 ml of a solvent?

1 answer:

3 0

Molarity is calculated by using following formula,

Molarity = Moles / Volume

Data Given:
Moles = 23 moles

Volume = 100 ml ÷ 1000 = 0.1 L

Putting values in eq. 1,

Molarity = 23 mol / 0.1 L

Molarity = 230 mol/dm³

Result:
When 23 mol of solute is dissolved in a solvent to make a solution of 100 ml, then it will have a Molarity of 230 mol/dm³.

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Two parts that make up a solution are... what

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Answer: All solutions have two parts: the solute and the solvent. The solute is the substance that dissolves, and the solvent is the substance that dissolves the solute.
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3 years ago

Which value gives the number of particles in 1 mol of a substance?

Alexxx [7]

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3 years ago

The vapor pressure of liquid chloroform, CHCl3, is 100. mm Hg at 283 K. A 0.380 g sample of liquid CHCl3 is placed in a closed,

Katyanochek1 [597]

Answer:

100 mm Hg

Explanation:

From the question we are told that

The vapor pressure of CHCl3, is $P = 100 \ mmHg = \frac{100}{760}= 0.13156 \ atm$

The temperature of CHCl3 is $T = 283 \ K$

The volume of the container is $V_c = 380mL = 380 *10^{-3}\ L$

The temperature of the container is $T_c = 283 \ K$

The mass of CHCl3 is m = 0.380 g

Generally the number of moles of CHCl3 present before evaporation started is mathematically represented as

$n = \frac{m }{M }$

Here M is the molar mass of CHCl3 with the value $M = 119.38 \ g/mol$

=> $n = \frac{ 0.380 }{119.38 }$

=> $n = 0.00318 \ mols$

Generally the number of moles of CHCl3 gas that evaporated is mathematically represented as

$n_g = \frac{PV}{RT}$

Here R is the gas constant with value $R = 0.08206 L \ atm /mol\cdot K$

$n_g = \frac{0.13156* 380 *10^{-3} }{0.08206 * 283}$

$n_g = 0.00215 \ mols$

Given that the number of moles of CHCl3 evaporated is less than the number of moles of CHCl3 initially present , then it mean s that not all the liquid evaporated

At equilibrium the temperature of CHCl3 will be equal to the pressure of air so the pressure at equilibrium is 100 mmHg

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3 years ago

When liquid water changes into solid ice, it increases in ?

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when liquid water changes into solid ice, it increases in mass

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Read 2 more answers

Please help find out code?

Nat2105 [25]

You might need to take more pictures so we can see all the equations clearly

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