Answer:
1. 380 parts per million (0.038%)
Explanation:
By volume, dry air, which makes up the earth's atmosphere is roughly made up of 78.09 % nitrogen gas, 20.95 % oxygen gas, 0.93% argon gas, 0.04% carbon dioxide gas, and trace amounts of other gases. So the answer to this question is the one that is closest to 0.04 %, 1.
Answer:
120g
Explanation:
ther react in mole ratio 1:1
I would say a number about 545.
Explanation:
Reaction:
Cu + 2AgC₂H₃O₂ → Cu(C₂H₃O₂)₂ + 2Ag
The problem is to split the reaction into oxidation and reduction halves:
The oxidation half is the sub-reaction that undergoes oxidation
The reduction half is the one that undergoes reduction:
The ionic equation:
Cu + 2Ag⁺ + 2C₂H₃O₂⁻ → Cu²⁺ + 2C₂H₃O₂⁻ + 2Ag
Oxidation half:
Cu → Cu²⁺ + 2e⁻
Reduction half:
2Ag⁺ + 2e⁻ → 2Ag
C₂H₃O₂⁻ is neither oxidized nor reduced in the reaction.
learn more:
Oxidation state brainly.com/question/10017129
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Answer:
40 mL
Explanation:
To prepare a solution by a concentrated solution, we must use the equation:
C1xV1 = C2xV2
Where C is the concentration, V the volume, 1 is the initial solution and 2 the final solution. So, the final volume will be 250 mL, with 1.6% of concentration:
10xV1 = 1.6x250
V1 = 40 mL
So, it's necessary 40 mL of the SDS stock solution.