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puteri [66]
2 years ago
5

Help me for a hefty reward

Chemistry
1 answer:
Mekhanik [1.2K]2 years ago
7 0

Group B is incorrect,They most likely added too much acid .

Let's check the reaction

\\ \tt\hookrightarrow HCl+NaOH=NaCl+H_2O

  • HCl is a strong acid
  • NaOH is a strong base
  • So it will lead to neutralization reaction.

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7 0
3 years ago
What is the percent of hydrogen peroxide in the solution when 5.02g of H2O2 solution reacts to produce 0.153g of H2O2? 2H2O2 (l)
Murljashka [212]

<u>Given:</u>

Mass of H2O2 solution = 5.02 g

Mass of H2O2 = 0.153 g

<u>To determine: </u>

The % H2O2 in solution

<u>Explanation:</u>

Chemical reaction-

2H2O2(l) → 2H2O(l) + O2(g)

Mass % of a substance in a solution = (Mass of the substance/Mass of solution) * 100

In this case

% H2O2 = (Mass H2O2/Mass of solution)* 100 = (0.153/5.02)*100 = 3.05%

Ans: % H2O2 in the solution = 3.05%

5 0
3 years ago
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