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Dmitry_Shevchenko [17]
3 years ago
5

What kind of mixture is a solution? Name the different constituents of a solution

Chemistry
1 answer:
dlinn [17]3 years ago
7 0

Answer:

homogeneous mixture

Explanation:

two or more substances

a component that dissolves and a solvent

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What is the molarity of a 0.250 L MgCl2 solution that contains 0.175 mol MgCl2?
spayn [35]

Explanation:

we know that 0.250 L = 0.250 dm3

molarity = concentration in dm3/ volume

molarity = 0.175/0.250 = 0.7 mol/dm3

4 0
2 years ago
Suppose a student titrates a 10.00-ml aliquot of saturated ca(oh)2 solution to the equivalence point with 16.08 ml of 0.0199 m h
Alborosie
Following chemical reaction is involved upon titration of Ca(OH)2 with HCl,
Ca(OH)2 + 2HCl ↔ CaCL2 + 2H2O

Above is an example of acid-base titration to generate salt and water. Here, H+ ions of acid (HCl) combines with OH- (ions) of base [Ca(OH)2] to generated H2O

Given,
concentration of HCl = 0.0199 M
Total volume of HCl consumed during titration = 16.08 mL = 16.08 X 10^(-3) L

∴, number of moles of H+ consumed = Molarity X Vol. of HCl (in L)
                                                           = 0.0199 X 16.08 X 10^(-3)
                                                           = 3.1999 X 10^-4 mol
Thus, total number of moles of [OH-] ions present initial = 3.1999 X 10-4 mol
So, initial conc. [OH-] ion = 
\frac{number of moles of [OH-]}{volume of solution (L)} = \frac{3.1999 X 10^(^-^4^)}{10 X 10^(^-^3^)} = 0.03199 M
6 0
3 years ago
Calculate the volume of a box with the following dimensions: length=8 cm
wel

Answer:  240 cm³

Explanation:

Volume of the box = l × w × h

                               = (8 cm × 6 cm × 5 cm)

                               = 240 cm³

8 0
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KATRIN_1 [288]

Answer:

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Explnation:

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irina [24]

The average kinetic energy of colliding particles can be increased by increasing temperature.

B.

6 0
3 years ago
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