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1 year ago

Ii. 152.5 g of CuCl2, to make a solution of final volume 2.25 L

1 answer:

7 0

The volume of the solution and the moles dissolved in it gives the molar concentration. The molarity of 152.5 g of CuCl₂ dissolved in a 2.25L solution is 0.51 M.

<h3>What is molarity?</h3>

Molarity has been defined by the concentration of the substance in a liter of the solution used to dissolve it. It is given by the moles and the volume.

Given,

Volume of solution = 2.25 L

Mass of CuCl₂ = 152.5 g

Molar mass of CuCl₂ = 63. 5+ 2(35) = 133.5 g/mol

The formula for molarity is given as,

Molarity = moles ÷ Volume

= mass × (molar mass × volume)

Substituting values above:

M = 152.5 ÷ (133.5 × 2.25)

= 0.51 M

Therefore, a 152.5 g of CuCl₂ sample has a molar concentration of 0.51 M.

Learn more about molarity here:

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Your question is incomplete, but most probably your full question was, that 152.5 g of CuCl₂ (Copper Chloride) are dissolved in water to make a solution with a final volume of 2.25L. What is the molarity of the solution (express to three decimal places) (Cu (Copper) MW = 63.5; CL (Chlorine) MW = 35)

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3 0

3 years ago

lorena paid the cashier 180 pesos for the 15 graded pad let b be the price of each pad how much did each pad cost a 10 pesos b12

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b. 12 pesos

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3 years ago

Before we can use this equation for

AlexFokin [52]

Answer:

2C₂H₆ + [7]O₂ → [4]CO₂ + [6]H₂O

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Chemical equation:

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Balanced chemical equation:

2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

Step 1:

2C₂H₆ + O₂ → CO₂ + H₂O

Left hand side Right hand side

C = 4 C = 1

H = 12 H = 2

O = 2 O = 3

Step 2:

2C₂H₆ + O₂ → 4CO₂ + H₂O

Left hand side Right hand side

C = 4 C = 4

H = 12 H = 2

O = 2 O = 9

Step 3:

2C₂H₆ + O₂ → 4CO₂ + 6H₂O

Left hand side Right hand side

C = 4 C = 4

H = 12 H = 12

O = 2 O = 14

Step 4:

2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

Left hand side Right hand side

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3 0

3 years ago

monatomic ion with a charge of +2 has an electronic configuration of 1s22s22p63s23p6. This ion is a(n) . What is the chemical sy

Debora [2.8K]

Answer: The ion is $Ca^{2+}$ . The chemical symbol of the noble gas this ion is isoelectronic with Kr.

Explanation:

The given electronic configuration is,

$M^{2+}:1s^22s^22p^63s^23p^6$

The number of electrons = 2 + 2 + 6 + 2 + 6 = 18 electrons

As the ion has a charge of +2 , that means it has lost two electrons so the the neutral element will have 2 more electrons i.e 18+2 = 20. The element has atomic number of 20 and the element will be Calcium with electronic configuration of

$M: 1s^22s^22p^63s^23p^64s^2$

Thus the symbol of ion is $Ca^{2+}$ . the nearest noble gas with 18 electrons is Krypton with symbol Kr.

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4 years ago

True or False? Changes in temperature, pressure and volume affect the behavior of gases more than they affect solids and liquids

Flauer [41]

Answer:

True

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3 0

4 years ago

Ii. 152.5 g of CuCl2, to make a solution of final volume 2.25 L​

Ii. 152.5 g of CuCl2, to make a solution of final volume 2.25 L