3 years ago

How many moles are found in 10.5 g of Pb?

Chemistry

1 answer:

deff fn [24]3 years ago

6 0

Answer:

Number of moles = 0.05 mol

Explanation:

Given data:

Mass of Pb = 10.5 g

Number of moles of Pb = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of Pb is 207.2 g/mol.

Now we will put the values in formula.

Number of moles = 10.5 g/207.2 g/mol

Number of moles = 0.05 mol

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The amount of potassium chloride (KCl) in 27.2 kg of a solution containing 18.7% KCl by mass solution is 5.086 kg.

<h3>How to find the mass of solute ? </h3>

Mass of solute = Mass percent of solute x Mass of the solution

Here,

Mass percent of solute = 18.7 %

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Now put the value in above formula we get

Mass of solute = Mass percent of solute x Mass of the solution

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