General Chemistry Answers

In what ways is water different from the other liquids? Why is it different

How would living things be affected if ice were more dense than liquid water?

Water spreads out on a glass surface but beads up on a waxed surface. Explain the difference.

The society of Automotive Engineers rates the viscosity of motor oils. Some typical ratings are SAE 40 and SAE 15, where the number is the measure of the relative viscosity. Higher numbers are given to oils that are more viscous. Oils suitable for use during winter have a W placed after the number in the viscosity rating. Which of these oils (SAE 40 or SAE 15) could be used during the winter and this have a W in the rating. Explain

Gasoline contains hydrocarbon such as octane, C8H18. Motor oils contain much larger molecules such as C18H38. Which is more viscous liquid? Explain why.

At equilibrium the concentrations in moles/L of N2, H2, and NH3 at 300 C are 0.25, 0.15, and 0.90 respectively. Find K for the reaction N2 + H2 ----- NH3

DEADLINE : 05/13/2022 11 : 00 PM

78.0 g of nonionizing C₆H₁₂O₆ are dissolved in 300 g of H₂O.

What is the change in boiling temperature in ⁰C, (ΔT_b)?

78.0 g of nonionizing C6H12O6 are dissolved in 300 g of H2O the Kb = 0.512 0C/m. What is the molar mass of water C6H12O6 ?

Calculate the equivalent weight in phosphoric acid in the reaction H3PO4 + 2NaOH ----> Na2HPO4 + 2 H2O

What mass of hydrogen peroxide must decompose to produce 65.88 g of H2O