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3 years ago

If log x = -0.761. What does x equal

1 answer:

4 0

The logarithm from my understanding can never be negative. You can check this on a calculator. You may have a negative if it is shown as -(log x).

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A solution is prepared by mixing 0.3355 moles of NaNO3 (84.995 g mol-1) with 235.0 g of water (18.015 g mol-1). Its density is 1

larisa86 [58]

Answer:

Molality = 1.428m

Explanation:

Molality, m, is an unit of concentration defined as the ratio between moles of solute and kg of solvent:

Molality: Moles solute / kg solvent.

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$235.0g\frac{1kg}{1000g} = 0.2350kg$

Thus, molality of the solution is:

Molality = 0.3355 moles NaNO₃ / 0.2350kg

<h3>Molality = 1.428m</h3>

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4 years ago