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bagirrra123 [75]

2 years ago

6

An electrochemical cell has the following overall reaction.

2 answers:

elena-s [515]2 years ago

8 0

Its 4 dude i did this already

Serggg [28]2 years ago

5 0

Your answer would be 4. +1.52 V good luck

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mr Goodwill [35]

Answer: 36.25

Explanation:

4 0

3 years ago

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How many moles of nitric acid are present in 35.0 ml of a 2.20 M solution?

vodomira [7]

Answer:

There are 77 millimoles of nitric acid present in 35.0 mL of a 2.20 M solution

Explanation:

Molarity of the solution = 2.20 M

$Molarity=\frac{number\:of\:moles}{Volume\:of\:Solution\:in\:L}\\\\Number\:of\:moles=Molarity\times(Volume\:of\:Solution\:in\:L)\\\\Volume\:of\:Solution=35\:mL=35\times10^{-3}L\\\\Number\:of\:moles=2.20\times35\times10^{-3}=77\times10^{-3}\:moles\:of\:HNO_{3}$

Therefore, there are 77 millimoles of nitric acid present in 35.0 mL of a 2.20 M solution

8 0

2 years ago

1. What is the mass of 105.00 moles of H20?

stepladder [879]

The average mass of one H2O molecule is 18.02 amu. The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol.

Explanation:

5 0

3 years ago

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Caffeine is one of many naturally occurring chemicals in tea plants that plays two important roles: protecting the plant from pr

AnnyKZ [126]

Caffeine is more soluble in dichloromethane and the both are separated by evaporating the solvent.

Caffeine is an organic plant material which is more soluble in non-polar solvents than in polar solvents. As such, caffeine is more soluble in dichloromethane than in pure water.

In order to carry out a liquid-liquid exaction of dichloromethane from a commercial teabag, the dichloromethane is mixed with water. The caffeine is found to be more soluble in the organic dichloromethane layer than in water.

The two solvents can now be separated using a separating funnel and the solution is evaporated to obtain the caffeine.

Learn more: brainly.com/question/967776

6 0

2 years ago

What is the volume of 1g of ice in cm3?

Amanda [17]

Answer:

What is the volume of 1g of ice in cm3?

What is the volume of 1g of ice in cm3?

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What is the volume of 1g of ice in cm3?

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What is the volume of 1g of ice in cm3?

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Explanation:

3 0

3 years ago