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Rudiy27
3 years ago
6

If a DNA molecule is found to be made of 40% thymine,What percentage guanine would you expect

Chemistry
1 answer:
otez555 [7]3 years ago
5 0
It needs to equal the amount of adenine. The guanine to cyanine. So it would be 40% thymine 40 % adenine then 10% guanine and 10% cyanine would make sense
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If the mass of the object below is 28g, what is the density of the object below. Units are in cm below. Please round your answer
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Answer:

d = 0.93 g/cm³

Explanation:

Given data:

Mass of object = 28 g

Volume of object = 3cm×2cm×5cm

density of object = ?

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Volume of object = 3cm × 2cm ×5cm

Volume of object = 30 cm³

Density of object:

d = m/v

by putting values,

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Calculate to three significant digits the density of chlorine pentafluoride gas at exactly and exactly . You can assume chlorine
slega [8]

Answer:

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Explanation:

<em>... at exactly -15°C and exactly 1atm...</em>

<em />

Using general gas law:

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We can find density (Ratio of mass and volume) in an ideal gas as follows:

P/RT = n/V

<em>To convert moles to grams we need to multiply the moles with Molar Weight, MW:</em>

n*MW = m

n = m/MW

P/RT = m/V*MW

P*MW/RT = m/V

<em>Where P is pressure: 1atm;</em>

<em>MW of chlorine pentafluoride: 130.445g/mol</em>

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<em />

Replacing:

P*MW/RT = m/V

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<h3>Density of the gas is 6.16g/L</h3>

<em> </em>

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