General Chemistry Answers

Proteoglycan aggregates in tissues form hydrated, viscous gels. Can you think of any obvious mechanical reason why their capacity to form gels is important to cell function? (Hint: Liquid water is virtually incompressible).

Which of the following systems will have the greatest volume at STP?

a. 1.00 g N 2 (MM = 28 g/mol)

b. 1.00 g NH 3 (MM = 17 g/mol)

c. 1.00 g He (MM = 4 g/mol)

d. 1.00 g CO 2 (MM = 44 g/mol)

Calculate the pH of a buffer that is 0.012 M C₆H₅COOH ( Ka= 6.3x10-5 ) and 0.033 M NaC₆H₅COO.

 Discuss the factors affecting the sign of ∆G in the relationship ∆G= ∆H - T∆S. Give examples for each of the situations.

Explain which is the stronger acid

a)HNO₃ or HClO₄

b) CH₂FCOOH and CH₂BrCOOH

The combustion of octane proceeds according to the following reaction.                 2C8H18(l)+25O2(g)→16CO2(g)+18H2O(l)If 474 moles of octane combust, what volume of carbon dioxide is produced at 19.0 degrees Celsius and 0.995 atm?

600g of CaCOg decomposes in 2 minutes, what is The rate of reaction

What oxidizing agent that can oxidize alkanals but not alkanones

How many grams of K_(2)SO_(4) are in 27.9 g of pure potassium sulfate?

how many water molecules are there in ferrous sulphate crystal