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eduard
3 years ago
9

How many moles of solute are needed to prepare a 2.35 liter solution of 2.00 M Cu(NO3)2 solution

Chemistry
1 answer:
Dvinal [7]3 years ago
6 0
I don’t understand what the question is asking, sorry
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A hypothetical element has three main isotopes with mass numbers of 51, 53, and 54. If 15.00% of the isotopes have a mass number
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Answer: 53.25

Explanation: Please see attachment for explanation. Thanks.!

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3 years ago
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:
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5 0
2 years ago
Chloroform, CHCl3, reacts with chlorine, Cl2, to form carbon tetrachloride, CCl4, and hydrogen chloride, HCl. In an experiment 2
erastovalidia [21]

Answer:

Chloroform= limiting reactant

0.209mol of CCl4 is formed

And 32.186g of CCl4 is formed

Explanation:

The equation of reaction

CHCl3 + Cl2= CCl4 + HCl

From the equation 1 mol of

CHCl3 reacts with 1mol Cl2 to yield 1mol of CCl4

From the question

25g of CHCl3 really with Cl2

Molar mass of CHCl3= 119.5

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Hence moles of CHCl3= 25/119.5 = 0.209mol

Moles of Cl2 = 25/71 = 0.352mol

Hence CHCl3 is the limiting reactant

Since 1 mole of CHCl3 gave 1mol of CCl4

It implies that 0.209moles of CHCl3 will also give 0.209mol of CCl4

Mass of CCl4 formed = moles× molar mass= 0.209×154= 32.186g

6 0
3 years ago
Which phrase best describes activation energy? (1 point)
iren [92.7K]

Answer: the minimum amount of energy required to break bonds and start a chemical reaction

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8 0
2 years ago
PLEASE HURRY. Which of the molecules below is propyne?
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The last photo because its molecular formula is C3H4.

7 0
3 years ago
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