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pickupchik [31]
3 years ago
13

The balanced chemical equation for the reaction of copper (Cu) and silver nitrate (AgNO3) is shown below. Cu + 2AgNO3 2Ag + Cu(N

O3)2 How many moles of copper must react to form 0.854 mol Ag?

Chemistry
2 answers:
user100 [1]3 years ago
6 0
Hope this helps you.

Luden [163]3 years ago
5 0
1 mol Cu - 2 mol Ag
x             - 0.854 mol Ag

x=0.854*1/2=0.427 

0.427 mol Cu
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How many half-lives are required for three-fourths of the nuclei of an isotope in a sample to decay?
prisoha [69]
2 half lives are required.
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Consider the rate law below.
Serga [27]

C. quadruples the rate

<h3>Further explanation</h3>

Given

The rate law :

R=k[A]²

Required

The rate

Solution

There are several factors that influence reaction kinetics :  

  • 1. Concentration  
  • 2. Surface area  
  • 3. Temperature  
  • 4. Catalyst  
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The rate is proportional to the concentration.

If the concentration increased, the reaction rate will increase

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The concentration of A is doubled, the reaction rate will increase :

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5 0
3 years ago
If 2 CH3OH + 3 O2 -&gt; 2CO2 + 4 H2O was carried out in the laboratory and 219 g of water was produced, what would the percent y
ANEK [815]

Answer:

Percent yield = 84.5 %

Explanation:

Given data:

Mass of methanol = 229 g

Actual yield of water = 219 g

Percent yield of water = ?

Solution:

Chemical equation:

2CH₃OH + 3O₂  →  2CO₂  + 4H₂O

Number of moles of methanol:

Number of moles = mass/ molar mass

Number of moles = 229 g/ 32 g/mol

Number of moles = 7.2 mol

Now we will compare the moles of water with methanol.

                        CH₃OH         :            H₂O

                            2               :               4

                           7.2             :           4/2×7.2 = 14.4 mol

Mass of water:

Mass = number of moles × molae mass

Mass = 14.4 mol × 18 g/mol

Mass = 259.2 g

Percent yield:

Percent yield = actual yield / theoretical yield × 100

Percent yield = 219 g / 259.2 g × 100

Percent yield = 84.5 %

7 0
3 years ago
Can someone help quick
alina1380 [7]

Answer:

Sodium

(Na)

Just count the electrons and search which atom it is.

7 0
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