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erica [24]
3 years ago
12

How many moles are in 45.8 g of calcium nitrate, Ca(NO3)2? PLEASE HELP

Chemistry
1 answer:
VLD [36.1K]3 years ago
6 0

Answer:

the number of moles is 0.279

Explanation:

The computation of the number of moles of calcium nitrate, is shown below;

We know that

Number of moles = mass of substance ÷ molecular weight

= 45.8 g ÷ 164.088

= 0.279moles

hence, the number of moles is 0.279

We simply applied the above formula so that the correct value could come

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PLEASE HELP, WILL MARK BRAINLIEST!
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4 years ago
tetraphosphorous hexaoxide is formed by the reaction of phosphorous (p4) with oxygen gas. if the reaction of 75.3 g of p4 with 3
True [87]

the Percentage yield for the reaction = 48.8%

What is Percentage yield ?

The % ratio of the theoretical yield to the actual yield is known as the percent yield. It is calculated as the theoretical yield multiplied by 100% divided by the experimental yield. The percent yield is 100% if the theoretical and actual yields are equal. Because the real yield is frequently lower than the theoretical value, percent yield is typically lower than 100%. This may be due to incomplete or conflicting reactions or sample loss during recovery. If the percent yield is more than 100%, more sample than expected was retrieved from the reaction.

4 P + 3 O2 = P4O6

moles P = 75.3 g / 30.9738 g/mol= 2.43

moles O2 required = 2.43 x 3 / 4=1.82

actual moles O2 = 38.7 g /32 g/mol=1.21 so O2 is the limiting reactant

theoretical moles P4O6 = 1.21 / 3=0.403

theoretical mass P4O6 = 0.403 mol x 219.895 g/mol=88.6 g

% yield = 43.3 x 100/ 88.6 = 48.8 %

the Percentage yield for the reaction = 48.8%

To know about Percentage yield from the link

brainly.com/question/8638404

#SPJ4

4 0
1 year ago
Drag the types of electromagnetic waves to place them in order of increasing wavelength.
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4 years ago
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What type of reaction takes place
choli [55]

Answer:

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Explanation:

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* the propene is hydrogenated to propane using a palladium catalyst in nearly 100% yield

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