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skad [1K]
3 years ago
10

A chemist must dilute of aqueous iron(II) bromide solution until the concentration falls to . He'll do this by adding distilled

water to the solution until it reaches a certain final volume. Calculate this final volume, in milliliters. Be sure your answer has the correct number of significant digits.
Chemistry
1 answer:
balu736 [363]3 years ago
6 0

Answer:

22.9 mL

Explanation:

use dilution formula

M1×V1 = M2×V2

1---> is for stock solution

2---> is for diluted solution

Assuming the values not given in the question

M1 = 2.41 M

M2 = 2.0 M

V1 = 19.0 mL

Use:

M1×V1 = M2×V2

V2 = (M1×V1) / M2

V2 = (2.41×19)/2

V2 = 22.9 mL

22.9 mL

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Conversion factors:
pantera1 [17]

The number of micrograms of contaminant each person will receive is 5,742.64 ug.

<h3>Number of micrograms of contaminant  per person</h3>

The number of micrograms of contaminant each person will receive is calculated as follows;

Amount of contaminant (mg) = (1.01 x 10⁻⁴ mg/mL) x 2.28 x 10⁴ L

Amount of contaminant (mg) = 2.3028 mg.L/mL

Amount of contaminant (mg) = (2.3028 mg.L/mL) x (1000 mL/L) = 2,302.8 mg

Amount of contaminant (ug) = 2,302.8 mg x 1000 ug/mg = 2,302,800 ug

<h3>Amount of contaminant per person (ug/person) </h3>

=  (2,302,800 ug) / (401 persons)

= 5,742.64 ug per person

Learn more about micrograms of contaminant here: brainly.com/question/14522199

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2 years ago
4 Elliot has some stearic acid. It is in the solid state.
Ahat [919]

Answer:

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Explanation:

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mote1985 [20]
Arkeisha is correct because the fluid in an alkaline battery has a ph between 7.1 and 14.0
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Answer:

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Explanation:

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Answer:

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