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Annette [7]
3 years ago
7

A 0.530 M Ca(OH)2 solution was prepared by dissolving 36.0 grams of Ca(OH)2 in enough water. What is the total volume of the sol

ution thus formed?
Chemistry
1 answer:
Gekata [30.6K]3 years ago
3 0

Answer:

0.917

Explanation:

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A 25.0 ml solution of .0600 M EDTA was added to a 57.0 ml sample containing an unknown concentration of V3+. All V3+ present for
Rom4ik [11]

Explanation:

Let us assume that the ratio for the given reaction is 1:1.

Therefore, we will calculate the moles of Ga^{3+} as follows.

   Moles of Ga^{3+} solution = molarity × volume (L)

                              = 0.0440 M × 0.014 L

                              = 0.000616 moles

Moles of excess EDTA = 0.000616 moles

Also, the initial moles of EDTA will be calculated as follows.

     Total initial moles of EDTA = 0.0600 M × 0.025 L

                                                 = 0.0015

Therefore, moles of EDTA reacted with V^{3+} will be as follows.

                = 0.0015 - 0.000616

                = 0.00088 moles

Since, we have supposed a 1 : 1 ratio between V^{3+} and EDTA .

So, moles of V^{3+} = 0.00088 moles

Now, we will calculate the molarity of V^{3+} as follows.

       Molarity of V^{3+} solution = \frac{\text{moles}}{\text{volume (L)}}

                             = \frac{0.00088 moles}{0.057 L}

                             = 0.015 M

Thus, we can conclude that the original concentration of the V^{3+} solution is 0.015 M.

4 0
3 years ago
At the end of β-oxidation all carbons of a fatty acid are released in the form of
user100 [1]

Answer:

ACETYL-CoA, FADH

2  NADH  

 acetyl-CoA

Explanation: Beta oxidation of carbons of fatty acid acid molecules leads to the formation Acetyl-CoA, FADH and NADH.

The overall reaction for the process

Cn-acyl-CoA + FAD + NAD+

+ H

2O + CoA → Cn-2-acyl-CoA + FADH

2 + NADH + H+

+ acetyl-CoA.

formula of NADH is C21H27N7O14P2

formula of FADH is ‎C27H35N9O15P2.

Both NADH(Nicotinamide adenine dinucleotide) and FADH( Flavin adenine dinucleotide) are

formular for Acetyl CoA IS C23H38N7O17P3S.

Beta oxidation is a breakdown process taking place in living systems which catabolises the fatty acids through glycolysis or fermentation leading to the release of Acetyl CoA, NADH AND FADH2.

4 0
3 years ago
What happens in a single-replacement reaction?
antoniya [11.8K]

Answer:

D

Explanation:

A single-replacement reaction occurs when one element replace another in a single compound.

8 0
3 years ago
Why is it necessary to ensure that unreacted chlorine gas is passed into a fume cupboard when reacting with alumnium?
kobusy [5.1K]
The person above is correct.
7 0
3 years ago
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Electrons are known to be to the smallest subatomic particle
Lelu [443]

Answer:

true.

Explanation:

8 0
3 years ago
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