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4 years ago

What is the process of grouping similar things together

Chemistry

1 answer:

andre [41]4 years ago

8 0

Answer:

See Explanation

Explanation:

Mathematically, this means to combine like terms, such as terms with the same variable. In chemistry, this can refer to polar objects combining with polar objects while nonpolar objects combine with nonpolar objects.

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What is the volume of an 2.3 m solution with 212 grams of calcium chloride (cacl2) dissolved in it?

ira [324]

830 mL

The volume of an 2.3 m solution with 212 grams of calcium chloride (cacl2) dissolved is 830 mL.

The solution has a concentration of 2.3 mol/L.

<h3>a) Moles of CaCl2</h3>

Molar mass of CaCl2 = 110.98 g/mol

Moles of CaCl2 = 212 g CaCl2 x (1 mol CaCl2/110.98 g CaCl2)

= 1.910 mol CaCl2

<h3>b) Volume of solution</h3>

V = 1.910 mol CaCl2 x (1 L solution/2.3 mol CaCl2) = 0.83 L solution

= 830 mL solution

<h3>How much CaCl2 is there in the solution by molarity?</h3>

The number of moles is 0.125 x 2 = 0.25 mol since the molarity is 2.0M.
To get the answer of 27.745 g, simply multiply this by the molar mass of calcium chloride, which is 110.98 g/mol.

To learn more about CaCl2 solution visit:

brainly.com/question/1053707

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2 years ago

Hydrogen and oxygen make up water, which is a covalent compound. Which statement accurately describes hydrogen and oxygen? Hydro

alexdok [17]

hydrogen and oxygen are both nonmetals

5 0

4 years ago

Read 2 more answers

Which statement best compares and contrasts two physical properties of matter? Density and solubility are similar because they b

mash [69]

I believe the correct answer would be that b<span>oiling points and melting points are similar because they both involve the change in a state of a material, but they are different because boiling point involves a change from a liquid to a gas and melting point involves a change from a solid to a liquid. Boiling and melting are phase changes that can happen to a substance however they differ in the process that happens.</span>

8 0

4 years ago

Read 2 more answers

A chemist must prepare 200.0 mL of hydrochloric acid solution with a pH of 0.60 at 25 °C. He will do this in three steps: • Fill

Likurg_2 [28]

Answer:

In the second step, the chemist must measure 8.3 ml of concentrated acid

Explanation:

The concentration of the final solution can be obtained using the pH value:

pH = -log[H] = 0.60

[H] = 10^(-0.60) = 0.25 M

Then, the final concentration of HCl will be 0.25 M because HCl is a monoprotic acid, which means that HCl only has one hydrolyzable proton. Therefore: [HCl] = [H].

The number of moles of HCl in the final solution will be equal to the number of moles present in the volume taken from the stock solution:

n° of moles in the volume taken from stock solution = n° moles in the final solution.

The number of moles can be calculated as follows:

number of moles = concentration * volume

Then:

Ci * Vi = Cf * Vf

where

Ci = concentration of the stock solution

Vi = volume taken from the stock solution

Cf = concentration of the final solution

Vf = volume of the final solution

Replacing with the data, we can obtain Vi:

6.0 M * Vi = 0.25 M * 200.0 ml

5 0

3 years ago

what temperature does water freeze using degrees Celsius and what is the basic unit for measuring mass

Olin [163]

Freezing point is the temperature at which a substance undergoes a phase transition from liquid to solid state. Water converts from liquid state to solid ice at a temperature of $0^{0}C$ .

Mass is the amount of matter contained in a substance. The SI unit of mass is kilogram. 1 kilogram is equal to 1000 g. One kilogram is defined as the mass of one cubic decimeter of water at the freezing point of water.

5 0

4 years ago