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2 years ago

What is the solubility of NH4Cl at 50°C?

Chemistry

2 answers:

NISA [10]2 years ago

8 0

Answer : Option E) 50 grams.

Explanation : According to the solubility curves the compound $NH_{4}Cl$ to dissolve at 50 °C in 100 mL of water will need 50 grams of the compound. It is clearly indicated in the graph which is marked with red that at 50°C approximately 50.4 grams of the compound $NH_{4}Cl$ will be needed to dissolved in 100 mL of water to form a solution.

timurjin [86]2 years ago

6 0

Hi there

Got it, the solubility is 50 grams, i found a solubility chart online for the compound that you are looking for

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Diano4ka-milaya [45]

Answer:

The first one is B, "Decreasing surface area."

Explanation:

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Answer:

1,45 mL

Explanation:

The Grignard reaction is a very important organometallic chemical reaction where the Grignard reagent ( alkyl, vinyl, or aryl-magnesium halides) acts as nucleophile in order to the formation of Carbon-Carbon bonds.

In the problem, the phenylmagnesium chloride is the grignard reagent. The volume of 2.0 M phenylmagnesium chloride solution you need to add 2.9 mmol is:

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2 years ago

Nitrogen dioxide and water react to form nitric acid and nitrogen monoxide, like this:

posledela

Answer: The value of the equilibrium constant Kc for this reaction is 3.72

Explanation:

Equilibrium concentration of $HNO_3$ = $\frac{15.5g}{63g/mol\times 9.5L}=0.026M$

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Equilibrium concentration of $NO_2$ = $\frac{22.5g}{46g/mol\times 9.5L}=0.051M$

Equilibrium concentration of $H_2O$ = $\frac{189.0g}{18g/mol\times 9.5L}=1.10M$

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For the given chemical reaction:

$2HNO_3(aq)+NO(g)\rightarrow 3NO_2(g)+H_2O(l)$

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$K_c=\frac{[NO_2]^3\times [H_2O]^1}{[HNO_3]^2\times [NO]^1}$

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$K_c=3.72$

Thus the value of the equilibrium constant Kc for this reaction is 3.72

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