3 years ago

Complete by describing what the change of the state of the matter will be for the process to occur

1 answer:

4 0

Answer:

Freezing: Liquid turns into solid. Evaporation: Liquid turns into gas. Condensation: Gas turns into liquid. Sublimation: solid into gas. Deposition: Gas into solid.

Explanation:

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3 years ago

What volume in L of a 0.724 M Nal solution contains 0.405 mol of Nal?

Setler [38]

Answer:

0.559 L

Explanation:

Step 1: Given data

Moles of sodium iodide (n): 0.405 mol

Molar concentration of sodium iodide (M): 0.724 M (0.724 mol/L)

Step 2: Calculate the volume of solution (V)

The molarity is equal to the moles of solute divided by the liters of solution.

M = n/V

V = n/M

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3 years ago

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What volume of sample, in mL, would be needed to make 2 mL of a 5-fold dilution? (3 significant figures needed)

natulia [17]

Answer:

0.400 mL

Explanation:

Hello, the dilution factor (in folds) is given by:

$folds=\frac{total_{volume}}{sample_{volume}}$

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3 years ago