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Anuta_ua [19.1K]
3 years ago
10

A reaction has a theoretical yield of 45.8 g. when the reaction is carried out, 37.2 g of the product forms. what is the percent

yield?
Chemistry
2 answers:
sasho [114]3 years ago
7 0
W=(m'/m)·100%

m'=37.2 g
m=48.5 g

w=(37.2/48.5)·100%=76.7%
Ganezh [65]3 years ago
6 0

Answer:

81.22 %

Explanation:

Percent yield is the ratio of the actual yield to the theoretical yield. The higher is the actual yield the higher is the percent yield. Actual yield is always less than theoretical yield.  

Given,

Theoretical yield = 45.8 g

Actual yield = 37.2 g  

Percent yield = \frac{Actual yield}{Theoretical yield }x 100

                       = \frac{37.2 g}{45.8 g }x 100 = 81.22 %

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Explanation:

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2 years ago
A balloon of helium gas in Alabama has a volume of 22.4 L at 26°C and a 1.03 ATM how big with a balloon get if is transported to
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Answer:

The final volume of the balloon is = 28.11 L

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Initial pressure P_{1} = 1.03 atm = 104.325 K pa

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Final temperature T_{2} = 22 °c = 295 K  

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We know that

\frac{P_{1} V_{1} }{T_{1} } = \frac{P_{2} V_{2} }{T_{2} }

Put all the values in above formula we get

\frac{(104.325)(22.4)}{299} = \frac{(82)(V_{2} )}{295}

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Morphine is a well known pain killer but is highly addictive. The lethal dose of morphine varies from person to person based on
Aliun [14]

Answer:

0.252 milimoles

Explanation:

To convert mass of a substance to moles it is necessary to use the molar mass of the substance.

The formula of morphine is C₁₇H₁₉NO₃, thus, its molar mass is:

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H: 19*1.01g/mol = 19.19g/mol

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0.071891g × (1mol / 285.36g) = 2.5193x10⁻⁴ moles

As 1 mole = 1000 milimoles:

2.5193x10⁻⁴ moles = <em>0.252 milimoles</em>

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