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hichkok12 [17]
4 years ago
8

In a report to a supervisor, a chemist described an experiment in the following way: "0.0800 mol of H2O2 decomposed into 0.0800

mol of H2O and 0.0400 mol of O2." Express the chemistry and stoichiometry of this reaction by a conventional chemical equation. Do not include physical states. Use the smallest possible whole number coefficients.
Chemistry
1 answer:
lapo4ka [179]4 years ago
7 0

Answer:

H2O2 →  H2O  + 1/2O2

Explanation:

0.0800 mol of H2O2 decomposed into 0.0800 mol of H2O and 0.0400 mol of O2

H2O2 →  H2O  + 1/2O2 - Descomposition reaction.

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Answer:

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Explanation:

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7 0
2 years ago
When an iron nail rusts it seems to get heavier in mass. Does the iron nail follow the law of conservation of mass?
Nikolay [14]
B. No since rusting is a chemical change it does not follow the law of conservation of mass. 
6 0
3 years ago
Type the correct answer in the box. Express your answer to three significant figures. Calcium nitrate reacts with sodium phospha
RoseWind [281]

6.07 grams is the theoretical yield of calcium phosphate (Ca₃(PO₄)₂).

<h3>How we calculate mass from moles?</h3>

Mass of any substance can be calculated by using moles as:

n = W/M, where

W = required mass

M= molar mass

Given chemical reaction is:

3Ca(NO₃)₂ + 2Na₃PO₄ → 6NaNO₃ + Ca₃(PO₄)₂

From the stoichiometry it is clear that:

3 moles of Ca(NO₃)₂ = produce 1 mole of Ca₃(PO₄)₂

Given mass of Ca(NO₃)₂ = 96.1g

Mole of Ca(NO₃)₂ = 96.1g/164g/mol = 0.5859moles

So, 0.5859 moles of Ca(NO₃)₂ = produce 0.5859×1/3 = 0.0196 moles of Ca₃(PO₄)₂

Required mass of Ca₃(PO₄)₂ will be calculated by using moles as:

W = 0.0196mole × 310g/mole = 6.07 grams

Hence, 6.07 grams is the theoretical yield of calcium phosphate.

To know more about moles, visit the below link:

brainly.com/question/15373263

7 0
2 years ago
The theoretical yield for a reaction is 55.9 g LiCl. The actual yield is 24.6 g LiCl. What is the percent yield of the reaction?
Alexxx [7]
% yield = actual yield divided by theoretical x 100
24.6 divided by 55.9 is 0.44
.44 x 100 =44%
C
6 0
4 years ago
What kind of graph is this plsssss help me :))
dybincka [34]

Answer:

It is a pie graph.

7 0
3 years ago
Read 2 more answers
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