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amm1812
3 years ago
7

A 47.0 mL aliquot of a 0.400 M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water shou

ld be added? volume of water: Answer mL

Chemistry
1 answer:
mel-nik [20]3 years ago
5 0

Answer:

The answer is 0.188L

Explanation:

I did the problem on paper and put the answer on the pictures. I'm sorry if I didn't explain it well but I hope I helped.

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1. Rubidium is a soft, silvery-white metal that has two common isotopes, 35Rb and Rb. The atomic mass of
xxTIMURxx [149]

Answer:

85.076572

Explanation:

= (84.911789×0.7217) + (86.909183×0.2738)

= 85.076572

8 0
3 years ago
The mass number of 3 isotopes of magnesium are 24,25,26.what is the mass number of the most abundant isotope of magnesium.​
Anarel [89]

Answer:

24.4 amu or g/mole

Explanation:

24 x 0.790 = 19.0 amu

25 x 0.100 = 2.50 amu

26 x 0.110 = 2.86 amu

(Because of the 19.0, the sig figs go only to the 1/10 decimal place)

19.0 + 2.5 + 2.9 = 24.4 amu or g/mole

7 0
3 years ago
What is one advantage of using a computer over a graphing calculator
CaHeK987 [17]

PCs are usually more powerful devices w/ higher resolutions than the common graphing calculator.

3 0
4 years ago
Read 2 more answers
Why would concentrated hydrochloric acid be a poor choice as the acid catalyst for the formation of cyclohexane by dehydration o
babunello [35]

Answer:

Chlorine ion will attack the carbocation and double bond will not be created

Explanation:

The use of concentrated hydrochloric acid wiill be a poor choice as the acid catalyst for the formation of cyclohexane by dehydration of cyclohexanol because of the following reasons:

1) There will be presence of chlorine ions and they will attack the carbocation to form a single bond.

2) The formation of double bond will not occur in the process.

Therefore, it is a poor choice to use concentrated hydrochloric acid as the acid catalyst for the formation of cyclohexane by dehydration of cyclohexanol.

6 0
4 years ago
Consider the titration of 30.0 mL of 0.050 M NH3 with 0.025 M. HCl. Calculate the PH after the following volumes of titrant have
DedPeter [7]

Answer:

pH will always be less than 7

Explanation:

This is because NH3 is a relatively weak base and the resulting Acidic salt on titration might hydrolyse to form a buffer solution

5 0
3 years ago
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