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tigry1 [53]
3 years ago
7

I’ll give 5 stars and Brainliest plus this is 20 points lol

Chemistry
1 answer:
Daniel [21]3 years ago
4 0

Answer:

I think is b

Explanation:

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You make two dilutions. You take 83.52 mL of the stock solution and dilute to 500.0 mL to make Solution #1. You then add 52.27 m
kati45 [8]

Answer:

The answer to the question is;

The concentration of the Solution #1 in terms of molarity is

0.16704X moles/litre.

Explanation:

Let the concentration of the stock solution be X moles/liter

Therefore, 83.52 ml of the stock solution contains

83.52×(X/1000) moles

Dilution of 83.52 ml of X to 500 ml gives solution 1 with a concentration of

500 ml of solution 1 contains 83.52×(X/1000) moles

Therefore 1000 ml or 1 litre contains 2×83.52×(X/1000) moles = 0.16704X moles/litre

The molarity of solution 1 is 0.16704X moles/litre.

8 0
4 years ago
SCIENCE !!
Nesterboy [21]

The type of heat transfer you are referring to here is convection.

7 0
3 years ago
The Ksp of CaF2 is 4.0 x 10-11. What is the solubility of CaF2 in 0.10 M Ca(NO3)2? Give your answer using scientific notation an
Ilya [14]

Answer:

1.0\times 10^{-5} M is the solubility of CaF_2 in 0.10 M Ca(NO_3)_2.

Explanation:

Concentration of calcium nitrate = [Ca(NO_3)_2]=0.10 M

Ca(NO_3)_2\rightarrow Ca^{2+}+2NO_3^{-}

[Ca(NO_3)_2]=0.10 M=[Ca^{2+}]

Solubility product of the calcium fluoride = K_{sp}=4.0\times 10^{-11}

Solubility of calcium fluoride in calcium nitrate solution :

CaF_2\rightleftharpoons Ca^{2+}+2F^-

            (0.10+S)   (2S)

The expression of solubility is given by :

K_{sp}=[Ca^{2+}][F^-]^2

4.0\times 10^{-11}=(S+0.10)(2S)^2

Solving for S:

S=1.0\times 10^{-5} M

1.0\times 10^{-5} M is the solubility of CaF_2 in 0.10 M Ca(NO_3)_2.

3 0
3 years ago
Why is it that in Group 1 elements become more reactive as we go down the group but in Group 7 elements become less reactive as
wariber [46]

Answer:

Group 1 elements become more reactive as we move down the group. These atoms are larger because they have more shells. ... The force of attraction between the nucleus and the electron is less than for smaller atoms, and the outer electron is lost more easily.

5 0
3 years ago
Which of the following reactions is balanced?
Vsevolod [243]
The answer is A
Hope this helps.
7 0
3 years ago
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