General Chemistry Answers

The partial of triple bond in an organic compound lead to saturated

A gas takes up a volume of 17 L, has a pressure of 2.3 atm, and a temperature of 299 K. If the temperature raised to 350 K and pressure is lowered at 1.5 atm, what is the new volume of gas?

A 30.0 L sample of nitrogen inside a rigid, metal container at 20.0 °C is placed inside an oven whose temperature is 50.0 °C. The pressure inside the container at 20.0 °C was at 3.00 atm. What is the pressure of the nitrogen after its temperature is increased to 50.0 °C?

a power plant 55 kg of fly ash per hour up the stack. the flow rate of the hot gases in the stack is 1.0 m^3/s. what is the concentration of the fly ash in micrograms per cubic meter?

4HCLA_(g)+O_2(g)—>2Cl_2(g)+2H₂O_(g)

Given:S⁰ values l J/K.mol

HCL_(g)=186.8

O_2(g)=205

Cl_2(g)=223

H₂O_(g)=188.7

N_2(g)+3H_2(g)->2NH_3(g)

Given:H_2(g)=131G

N_2(g)=192

NH_3(g)0=193. S⁰ values in J/K.mol

Which of the following is a chemical change

Mixing chalkpowder with sand

Melting of ice

Dissolving sugar in water

Cooking an egg

Supposed if 1 gram of potassium hydroxide was dissolved in 1litre of water, what is the concentration?

During this time of pandemic, most of the blood banks run out of blood. Have

experience to get a pack of blood in a blood bank. Why is it necessary to bring with

you a storage box with ice on it?(Relation to Gibb's Free Energy- Spontaneous Process)

Topic: Enthalpy and Hess Law

1. Calculate the heat of hydrogenation of ethane, C2H4 given the following thermochemical equations:

2 C (graphite) + 3 H2 (g) ---> C2H6 (g). ∆Hf= -84.5 kJ/mol

2 C (graphite) + 2 H2 (g) ---> C2H4 (g). ∆Hf= 52.3 kJ/mol

2. Calculate the ∆H for the reaction:

CS2 (I) + 2 O2 (g) CO2 (g) + 2 SO2 (g)

Given:

∆Hf CO2 (g) = - 393.5 kJ/mol

∆Hf SO2 = - 296.8 kJ/mol

∆Hf CS2 (I) = 87.9 kJ/mol