General Chemistry Answers

1. What is the mass concentration of water vapor (g H2O per m3 of air) in a liquid-water cloud at a temperature of 273 K? Considering that the liquid water mass concentration in a cloud ranges typically from 0.1 to 1 g liquid water per m3 of air, is most of the water in a cloud present as vapor or as liquid?

PtCl₂(NH₃)₂

Most organic molecules and functional groups are transparent in the ultraviolet and visible region (190 to 800nm) of the electromagnetic spectrum. Explain how an absorption spectrum is obtained from a transparent material.

Calculate the partial pressure of all the components in a mixture that contains 1 mole of CO2, 2.5 moles of CO, and 2.6 moles of CH4 in a constant volume vessel at 130 mm Hg and 300C

Question

(1.)

130Cm of a gas 20 degree celsiusi exert a pressure of 750mmHg. Calculate It's Pressure if it's Volume is increased to 150cm at 35 degree celsiusi ?

Question

(2.)

To what temperature must a given mass of Nitrogen at 0 degree celsiusi be heated so that both it's Volume and Pressure will be doubled ?

Wrtie a balanced equation showing the reaction of HClO

HClO with water

Question

(1.)

130Cm of a gassy 20 degree celsiusi exert a pressure of 750mmHg. Calculate It's Pressure if it's Volume is increased to 150cm at 35 degree celsiusi ?

Question

(2.)

To what temperature must a given mass of Nitrogen at 0 degree celsiusi be heated so that both it's Volume and Pressure will be doubled ?

Write the chemical equation for the reaction of carbonic acid (H

2

CO

3

)

(H2⁢CO3) with water.

A Carnot engine operates between two temperature reservoirs maintained at 493.15k and 298.15k, respectively. If the desired output of the engine is 20.00 kW, find the heat transfer to the low temperature reservoir.

You have 1 m³ of wood and 1 m³ of aluminum. Which is heavier? Prove your answer with calculation.