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loris [4]
3 years ago
8

What is the empirical formula of a compound that contains 50.0% carbon, 6.7% hydrogen, and 43.3% oxygen by mass? 

Chemistry
1 answer:
nasty-shy [4]3 years ago
7 0

The answer is D. C3H2O5

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Problem page what kind of intermolecular forces act between a dichlorine monoxide molecule and a hydrogen bromide molecule?
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Dichlorine monoxide has the same structure like that of water. So, this is a polar molecule. For polar molecules, the dominant intermolecular force would be dipole-dipole forces. For HBr, there is a force between two oppositely charged ions, H⁺ and Br⁻. So, the dominant intermolecular force is electrostatic attraction.
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6 0
3 years ago
The remnants of an ancient fire in a cave in Peru showed a decay rate of 8.0 counts per minute per gram of carbon. Assuming that
OLga [1]

The age of the remnants is calculated as 3807 years.

<h3>What is the half life?</h3>

The half life is the time taken for only half of the number of the radioactive atoms to remain.

Half life of carbon - 14 = 5730 years.

Initial count rate = 8.0 counts per minute per gram

Count rate at time t =  12.7 counts per minute per gram of carbon

Since;

0.693/t1/2 =2.303/t log (N/No)

0.693/5730 = 2.303/t log (12.7/8)

1.21 * 10^-4 = 2.303/t * 0.2

t = 2.303 * 0.2/1.21 * 10^-4

t = 0.4606/1.21 * 10^-4

t = 3807 years

Learn more about carbon-14:brainly.com/question/4206267

#SPJ1

3 0
2 years ago
Calculate the number of moles of Sodium Hydroxide (NaOH)needed to produce 8.32 g of Sodium Chloride (NaCl).
Naddika [18.5K]
8.32g x 58.44g/mol x 1mol NaCl:1mol NaOH = .142 mol NaOH
4 0
2 years ago
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