Chemistry Answers

1. A hot air balloon has a volume of 2800 m3 at 990C. What is the volume if the air cools to 800C.

Given:     V₁ = 2800m3

T₁=99°C+273K = 372 K        T₂ =80°C +273K =353K

Unknown: V₂

Formula:

Solution:

Final answer:

How do the atomic radii of the halogens compare with their ionic radii?

For argon the numerical value of a is 1.337 and the numerical

value of b is 0.0320.

Use the van der Waals equation to calculate the pressure of a

sample of argon at-90.0 °C with a molar volume of 2.59 L/mol.

Round your answer to the correct number of significant digits.

Cu + S₈ -> Cu₂S

If 98g of H₂SO₄ begin a reaction, determine how many grams of BaSO₄ would be produced if you had a 64% percent yield.

1.     Carbon monoxide has a volume of 3.0 L at 35°C. At what temperature does this occupy 4. 0 L?

Carbon monoxide has a volume of 3.0 L at 35 °C . At what temperature does this occupy 4. 0 L

Carbon monoxide has a volume of 3.0 L at 35 °C . At what temperature does this occupy 4. 0 L?

1.     Carbon monoxide has a volume of 3.0 L at 35 °C . At what temperature does this occupy 4. 0 L?

Billions of pounds of urea are produced annually for use as a fertilizer

The reaction used is

2NH3+CO2=CO(NH2)2+H2O

The typical starting mixture has 3:1 mole ratio of NH3 to CO2 .If 47.7grams urea form per mole of CO2 that reacts what is the

A:Theoretical yield

B:Actual yield