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My name is Ann [436]
3 years ago
10

A solution of iron chloride has a density of 1.118g/mL. what volume of solution would have a mass of 1.75kg?

Chemistry
1 answer:
NeX [460]3 years ago
5 0
Density=mass/volume
1.118=1.75/volume
1.118xvol=1.75
volume=1.75/1.118
volume=1.57ml
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You are performing a titration of a triprotic acid, when you spill water on your lab notebook. you can read that: pka 1 = 1.40,
eimsori [14]
According to the PH formula:
PH= Pka +㏒ [strong base/weak acid]
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5 0
3 years ago
(23.4m)(14m) rounded off to the correct number of significant figures
VARVARA [1.3K]

The value of the given expression up to correct significant figures is 330 m^2.

  • The rule that applies for the multiplication and division is :

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

  • The rule that applies for the addition and subtraction is :

The least precise number present after the decimal point determines the number of significant figures in the answer.

Given:

The expression: (23.4m)(14m)

To find:

The answer up to correct a number of significant figures.

Solution

Number of significant figures in '23.4' = 3

Number of significant figures in '14' = 22

=(23.4m)(14m)\\=(23.4m)\times (14m)\\=327.6 m^2

The number with the least significant figures is '14' is 2, so the answer will be reported up to 2 significant figures:

=327.6 m^2\approx 330 m^2

Number of significant figures in '330' = 3

The value of the given expression up to correct significant figures is 330 m^2.

Learn more about significant figures here:

brainly.com/question/11904364?referrer=searchResults

brainly.com/question/17177568?referrer=searchResults

 

5 0
3 years ago
Which of the following statements best predicts the pH value of H2CO3 and KOH?
worty [1.4K]

Answer:

The 2nd one

Explanation:

ITS THE RIGHT ANSWER

4 0
3 years ago
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