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3 years ago

I NEED ASAP!

Chemistry

2 answers:

Mnenie [13.5K]3 years ago

7 0

Answer:The correct answer is option B.

Explanation:

Mass of surcose dissolved = 50.0 g

volume of water = 1 L

Molarity= $\frac{\text{Mass of sucrose}}{\text{molar mass of sucrose}\times \text{volume of solvent in L}}$

$Molarity=\frac{50.0 g}{342.3 g/mol\times 1 L}=0.1460 mol/L$

Hence ,the correct answer is option B.

Levart [38]3 years ago

4 0

B 0.146m
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Having energy in the reactant lead to an exothermic reaction.<br>true<br>false

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Answer:

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You can practice converting between the mass of a solution and mass of solute when the mass percent concentration of a solution

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Answer:

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A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration o

HACTEHA [7]

Answer:

1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Explanation:

From the question given above, the following were obtained:

Mass of empty cylinder = 9.5 g

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Concentration of solution =?

Next, we shall determine the mass of sodium hydroxide, NaOH. This can be obtained as as illustrated below:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Mass of NaOH =?

Mass of NaOH = (Mass Cylinder + NaOH) – (Mass of empty cylinder)

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Mass of NaOH = 22.42 g

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Concentration of solution =?

Concentration = mass /volume

Concentration of solution = 22.42 / 20.4

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4 years ago