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SVEN [57.7K]
2 years ago
6

A salt lover decided to flavor her meal by adding 2.50 moles of sodium chloride,

Chemistry
1 answer:
FromTheMoon [43]2 years ago
4 0

Answer: C, 146

Explanation:

NaCl has a molar mass of 58.44 g/mol.

To change moles to g, we do:

2.50 moles × 58.44 g/mol = 146.1 g, so C

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Aniline is produced by the hydrogenation of nitrobenzene. a small amount of cyclo-hexylamine is produced as a byproduct. the rea
Tom [10]

Aniline can be produced from nitro-benzene by reduction. When nitro-benzene reacts with tin (Sn) + hydrochloride acid (HCl) then aniline is produced. The Sn + HCl forms free hydrogen ions which converts the nitro group of the benzene ring to amine group, which is aniline. In place of Sn + HCl. One can use palladium (Pd) hydrogen mixture in presence of ethanol (EtOH). There produces a side product in this reaction which is cyclohexyl amine. The reaction can be shown as.

8 0
2 years ago
Molarity of a salt water solution of "0.47" moles of NaCl dissolved in a volume of 0.25L
asambeis [7]

Answer:

1.88 M

Explanation:

The following data were obtained from the question:

Mole of NaCl = 0.47 mole

Volume of solution = 0.25L

Molarity =?

Molarity is defined as the mole of solute per unit litre of the solution. It can represented mathematically as:

Molarity = mole /Volume

Using the above formula, the molarity of the salt water solution can be obtained as follow:

Molarity = 0.47/0.25

Molarity = 1.88 M

5 0
2 years ago
A 22.4 kg object is accelerating at 1.40 m/s2. What net force is being applied to the object?
kaheart [24]

Answer:

<h3>The answer is 31.36 N</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 22.4 × 1.4

We have the final answer as

<h3>31.36 N</h3>

Hope this helps you

3 0
3 years ago
What is the percent yield of carbon dioxide of 2.5 mole of oxygen react and 32.4 g of carbon dioxide are produced?
Ugo [173]

Answer:

86

Explanation:

6 0
2 years ago
The pka of hco3 - (or pka2 of h2co3) is 10.33. what is the ph of a solution that has 0.1 m na2co3 and 1.0 m nahco3?
Margarita [4]

The given solution is a mixture of NaHCO_{3}and Na_{2}CO_{3}. It acts as a buffer as it is a combination of the weak acid HCO_{3}^{-}and it's conjugate base CO_{3}^{2-}.

[Acid] = [HCO_{3}^{-}]=1.0 M

[Base] =[CO_{3}^{2-}]=0.1 M

pH of the buffer solution can be calculated from Hendersen-Hasselbalch equation as below:

pH=pK_{a}+log\frac{[CO_{3}^{2-}]}{[HCO_{3}^{-}]}

pH=10.33+log\frac{0.1}{1.0}

pH = 10.33+(-1)

     = 9.33


4 0
3 years ago
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