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2 years ago

Absolute zero is what temperature on the fahrenheit scale?

Chemistry

1 answer:

vampirchik [111]2 years ago

8 0

Answer:

Absolute zero is - 459.67 °F

Explanation:

<u>1) Convert absolute zero to celsius:</u>

0 K = - 273.15°C ( this is per definition of the scale)

<u>2) Convert - 273.15°C to Fahrenheit:</u>

T (°F) = T (°C) × 1.8 + 32 (this is the conversion equation=

T (°F) = - 273.15 × 1.8 + 32 = - 459.67 °F ← answer

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Answer : The volume of milk in liters are, 1.8925 liters

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As we are given the volume of milk in gallon is, $\frac{1}{2}$

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As, 1 gallon of milk = 3.785 liter

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1 year ago

A sample of TNT, C7H5N3O6 , has 8.94 × 1021 nitrogen atoms. How many hydrogen atoms are there in this sample of TNT?

Bess [88]

Answer:

1.49×10²² atoms of H are contained in the sample

Explanation:

TNT → C₇H₅N₃O₆

1 mol of this has 7 moles of C, 5 moles of H, 3 moles of N and 6 moles of O

Let's determine the mass of TNT.

Molar mass is = 227 g/mol

As 1 mol has (6.02×10²³) NA atoms, how many moles are 8.94×10²¹ atoms.

8.94×10²¹ atoms / NA = 0.0148 moles

So this would be the rule of three to determine the mass of TNT

3 moles of N are in 227 g of compound

0.0148 moles of N are contained in (0.0148 .227) / 3 = 1.12 g

Now we can work with the hydrogen.

227 grams of TNT contain 5 moles of H

1.12 grams of TNT would contain (1.12 .5) / 227 = 0.0247 moles

Finally let's convert this moles to atoms:

0.0247 mol . 6.02×10²³ atoms / 1 mol = 1.49×10²² atoms

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3 years ago