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artcher [175]
3 years ago
12

Which of the following forms of matter can be classified as being

Chemistry
1 answer:
Minchanka [31]3 years ago
6 0
The answer is SOLUTIONS
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Magnesium and calcium have similar chemical properties because their atoms in the ground state have
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The answer is 4

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Since magnesium and calcium have the same number of valence electrons, and since the valence electrons are located in the outermost shell so the reasonable is 4

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3 years ago
How many moles of solute would be dissolved in .500 kg of solvent to make a 2.50 molal NaOH solution?
Tom [10]

Molality is a measure of concentration that relates the moles of solute to the kilograms of solvent, it is described by the following equation:

Molality=\frac{molSolute}{kgSolvent}

We are given the molality(2.50m) and kilograms of solvent(0.500kg), so we solve for moles of solute from the equation:

molSolute=Molality\times kgSolvent\begin{gathered} molSolute=2.50m\times0.500kg \\ molSolute=1.25molSolute \end{gathered}

To make a 2.50molal NaOH solution would be needed 1.25moles of solute

Answer: 1.25 moles

3 0
1 year ago
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