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nexus9112 [7]
4 years ago
14

QUESTION 17

Chemistry
1 answer:
Zarrin [17]4 years ago
6 0

Answer:

72.3%

Explanation:

The following data were obtained from the question:

Theoretical yield of MgO = 3.43 g

Actual yield of MgO = 2.48g

Percentage yield of MgO =.?

Percentage yield of a reaction can simply be obtained by dividing the actual yield by the theoretical yield multiplied by 100. This is illustrated below:

Percentage yield = Actual yield /Theoretical yield × 100

Thus, we can obtain the percentage yield of MgO as follow:

Theoretical yield of MgO = 3.43 g

Actual yield of MgO = 2.48g

Percentage yield of MgO =.? Percentage yield = Actual yield /Theoretical yield × 100

Percentage yield = 2.48/3.43 × 100

Percentage yield = 72.3%

Therefore, the percentage yield of MgO is 72.3%.

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Answer:

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Explanation:

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Why is looking through water different than looking through air?
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What is the formula for compound formed by Iron ( II ) ions and chromate ions?
miskamm [114]

Answer:

The formula of the compound formed by Iron (ii) ions and chromate ions is FeCrO₄

Explanation:

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6 0
3 years ago
given the following list of densities, which material would float in a molten vat of lead provided that they do not themselves m
SIZIF [17.4K]

Answer:

Given the following list of densities, which materials would float in a molten vat of lead provided that they do not themselves melt?

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glass and charcoal

Explanation:

The density of molten lead is about 10.65Kg/m^3

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which in turn is proportional to the object's density

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glass =2.6, and charcoal =0.57 are both less dense so they will float on Lead

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we are given the reaction Cu + 2AgNO3 ---> Cu(NO3)2 + 2Ag. This means for every mole Cu used, there are 2 moles of Ag produced. In this case, given 31.75 g Cu, converting to moles through molar mass and using stoichiometric ratio and the molar mass of Ag, the mass Ag produced is 107.9 grams. 
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3 years ago
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