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Mkey [24]
2 years ago
15

Perform the following

Chemistry
1 answer:
stepan [7]2 years ago
8 0

Answer:

.747

Explanation:

Answer can only have THREE sig dig because 12.9 has only three

9.635/12.9 = .747

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Given the following reaction: \ce{Cu + 2AgNO3 -> 2Ag + Cu(NO3)2}Cu+2AgNO3 ​ ​ 2Ag+Cu(NOX 3 ​ )X 2 ​ How many moles of \ce{Ag}
Alexandra [31]

Answer:

0.252 mol

Explanation:

<em>Given the following reaction: </em>

<em>Cu + 2 AgNO₃ → 2 Ag + Cu(NO₃)₂</em>

<em>How many moles of Ag will be produced from 16.0 g Cu, assuming AgNO3 ​ is available in excess.</em>

First, we write the balanced equation.

Cu + 2 AgNO₃ → 2 Ag + Cu(NO₃)₂

We can establish the following relations.

  • The molar mass of Cu is 63.55 g/mol.
  • The molar ratio of Cu to Ag is 1:1.

The moles of Ag produced from 16.0 g of Cu are:

16.0gCu.\frac{1molCu}{63.55gCu} .\frac{1molAg}{1molCu} =0.252 molAg

6 0
4 years ago
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A sealed container with liquid water in the bottom was left standing at a constant temperature until the air above the water sur
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Answer:

Saturation.

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Hello,

In this case, the statement is accounting for the saturation vapor pressure as it is the pressure of a vapor which is in equilibrium with its liquid, in other words it is the maximum exerted pressure possible by the vapor at a given temperature or just the maximum amount of the vapor, so there is neither no more vapor that could condense nor more liquid that could boil.

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Why is the periodic table such a brilliant piece of work? Explain and give two reasons.​
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Because it keeps track of all the elements

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PLEASE ANSWER <br> ARE THESE CORRECTTTTTT
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1. The answer is E.

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