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Lesechka [4]
3 years ago
6

Which of the followong would change the element represented in the electron module?

Chemistry
1 answer:
Vladimir79 [104]3 years ago
8 0

Answer:

removing the electron.

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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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8 0
2 years ago
Balanced equation and net ionic equation for sodium phosphate and potassium nitrate
stepladder [879]
This reaction does not exist since all of the reactants and products are aqueous.
6 0
3 years ago
How many moles are there in 87.2 g of zinc fluoride?
Sladkaya [172]

Answer:

what I got was 0.8435160945347224 moles

7 0
3 years ago
Solid potassium fluoride decomposes into fluorine gas and solid potassium .
inna [77]
2KF(s) -----> 2K(s)+F2(g)
8 0
3 years ago
how many grams of fertilizer , for potassium sulfate are there in 42.3 mole of potassium sulfate? step by step
Over [174]

Answer:

The mass of 42.3 moles of potassium sulfate is 7,371.1557 grams

Explanation:

Potassium sulfate K₂SO₄ which is also known as sulphate of potash is a water soluble common component of fertilizer

The molar mass of potassium sulfate, M = 174.259 g/mol

The given number of moles of potassium sulfate, n = 42.3 moles

The mass, 'm', of a given number of moles of potassium sulfate, 'n', is given as follows;

m = n × M

Therefore, we have;

The mass, 'm', of 42.3 moles of potassium sulfate is found by plugging in the values for 'M', and 'n', in the above equation as follows;

m = 42.3 moles × 174.259 g/mol = 7,371.1557 grams

The mass of 42.3 moles of potassium sulfate, m = 7,371.1557 grams.

4 0
3 years ago
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