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dmitriy555 [2]
3 years ago
8

Pls help the answers and questions r in the pic

Chemistry
2 answers:
soldier1979 [14.2K]3 years ago
6 0
It would be 9*10 to the -3
KIM [24]3 years ago
5 0

Answer:

A

Explanation:

.0090 you move over 3 spots to reach the number.

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If 450.0 mL of a 0.500 M solution is mixed with 200.0 mL of water, what is the molarity of the new
Oksana_A [137]

Answer:

Answer: A) .346 M

Explanation:

Given:

- 450 mL

- .5 M soln

-200 mL water

1) Convert mL to L

450 mL = .45 L

200 mL = .2 L

2) Find mols in solution

.5 M = x/.45 L

x = .225 mol

3) Find total volume of solution

.45 L + .2 L =.65 L

4) Find new molarity

molarity (M) = mols solute/ L solution

y = .225 mol (from step 2)/ .65 L (from step 3)

y = .346 M

Answer: A) .346 M

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3 years ago
How many f orbitals have the value n = 3?
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