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Natasha2012
2 months ago
12

The accepted value for a quantity is 5.67 g. If the measured value is 5.89 g, what is the percent error?

Chemistry
1 answer:
Alekssandra [3K]2 months ago
3 0
<span>Percent Error Formula = [ (Experimental Value - Theoretical Value) / Theoretical Value ] x 100%
3.88%</span>
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Compound A reacts with Compound B to form only one product, Compound C, and it's known the usual percent yield of C in this reac
VMariaS [2998]

Response:

1. 16.54 grams.

2. 6.64 grams.

Clarification:

Greetings,

In this situation, the chemical reaction taking place is:

A+B\rightarrow C

Thus, based on the provided data, the theoretical yield of C can be determined as:

m_C^{theoretical}=\frac{12.9g}{0.78}=16.54g

Additionally, taking into account the principle of conservation of mass, the mass prior to the reaction is equal to the mass following the reaction, hence, the mass of B that was utilized amounts to:

m_B=m_C-m_A=16.54g-10.0g=6.64g

Best regards.

6 0
1 month ago
Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. how is l
lorasvet [2795]
The classification is disaccharide.

<span>Lactose qualifies as a disaccharide since it's made up of two monosaccharides, which are simple sugars (glucose and galactose). Disaccharides constitute a subgroup of carbohydrates, and besides lactose, other common examples include sucrose and maltose.</span>

8 0
1 month ago
If your lungs were filled with air containing this level of lead, how many lead atoms would be in your lungs? (Assume a total lu
Tems11 [2777]
A total of 1.505×10^23 lead atoms

In the lungs, the volume of lead equals the total lung volume, which is 5.60L

1 mole corresponds to 22.4L

Thus, 5.6L of lead converts to 5.6/22.4 = 0.25 moles

According to Avogadro's law

1 mole of lead contains 6.02×10^23 lead atoms

Thus, 0.25 moles of lead equates to 0.25×6.02×10^23 = 1.505×10^23 lead atoms

6 0
1 month ago
BRAINLIESTTT ASAP!!!
lorasvet [2795]

Although I may not be the smartest, I can definitely answer.

This represents a chemical change because the substances' chemical identities were altered. The fizzing was a clear sign, and the temperature increase was another indicator of the reaction.

8 0
3 months ago
Read 2 more answers
The human body can get energy by metabolizing proteins, carbohydrates or fatty acids, depending on the circumstances. Roughly sp
eduard [2782]

Response:

3:1

Explanation:

Stearic acid - C18H36O2

Fructose- C6H12O6

The energy content in food is largely proportional to the carbon content. This can be expressed as:

C18/C6 = 3 or 3:1

This illustrates why fats and oils serve as the primary energy source for the body rather than carbohydrates. This is because fats and oils contain significantly higher amounts of carbon compared to carbohydrates.

6 0
1 month ago
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