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3 years ago

A solution of CuSO4 is labelled 0.01 M. How much CuSO4 in grams, must be used to make 1 liter of solution?

Chemistry

1 answer:

Gala2k [10]3 years ago

6 0

answer: C) 1.6 g

explanation: Molarity is the moles of solute present per liter solution.

The given molarity of the solution is 0.01 M.

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The solubility product of PbI2 is 7.9x10^-9. What is the molar solubility of PbI2 in distilled water?

Agata [3.3K]

Answer: The molar solubility of $PbI_2$ is $1.25\times 10^{-3}mol/L$

Explanation:

Solubility is defined as the maximum amount of solute that can be dissolved in a solvent at equilibrium.

Solubility product is defined as the product of concentration of ions present in a solution each raised to the power its stoichiometric ratio.

The balanced equilibrium reaction for the ionization of calcium fluoride follows:

$PbI_2\rightleftharpoons Pb^{2+}+2I^-$

s 2s

The expression for solubility constant for this reaction will be:

$K_{sp}=[Pb^{2+}][I^-]^2$

We are given:

$K_{sp}=7.9\times 10^{-9}$

Putting values in above equation, we get:

$7.9\times 10^{-9}=(s)\times (2s)^2\\\\7.9\times 10^{-9}=4s^3\\\\s=1.25\times 10^{-3}mol/L$

Hence, the molar solubility of $PbI_2$ is $1.25\times 10^{-3}mol/L$

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Scientists use bacteria to make medicines, o True o False

sladkih [1.3K]

Answer:

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2 years ago

Wat happens when water is added to a sand-salt mixture ?

aalyn [17]

Answer:

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Explanation:

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2 years ago

The sum of all chemical reactions that occur in a cell is called:.

vodomira [7]

Answer:

Metabolism

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The sum of the chemical reactions that take place within each cell of a living organism and that provide energy for vital processes and for synthesizing new organic material.

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2 years ago

Which of the following is not a covalent compound?

kifflom [539]

Answer:

PbSO4 is not a covalent compound.

Explanation:

PbSO4 is an ionic compound.

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