General Chemistry Answers

Determine the Oxidation States of each element of the reaction below:

Ag (s)+H2S →Ag2S(g)+H2(g) Ag(s)+H2S→Ag2S(g)+H2(g)

The oxidation of ammonia into nitric acid is an exothermic process.

4NH3+5O2=4NO+6H2O Hrxn=-904.4 kj

How will the following conditions affect after the equilibrium of the system?

a. Adding more O2

b. Adding H2O

c. Removing NH3

d. Increasing the temperature of the system

e. Decreasing the pressure in the vessel

(pls answer by alphabet)

Consider the Given Reaction:

2BrF5=BR2+5F2

If the perspective equilibrium concentrations of BrF5,Br2,and F2 at 250 Celsius are 0.046M,1.2M,and O.93M, what are the values of kc and kp?

How Lmao moles of KCl can be produced by letting 4 moles of KClO3 react

38. 45. KA weather balloon will burst when the volume exceeds 1.4 m². If it must rise to a height of 15 000 m above sea

level where the atmospheric pressure is 30 kPa at -50 °C. (0.56 L)

PA

Ti

a. What volume of helium should be placed in the balloon at sea level (SATP conditions) so that the balloon will just

rise to the desired level?

b. Will it matter if the balloon is filled at the top of a mountain or at sea level? Explain.

how many joules are required to heat 69g of water(liquid) from 69c to 96 c

1.      Define heat

of formation/standard heat of formation ΔHfo.

2.      Discuss

standard state and give examples (Padolina et al., 1995).

3.      State that

values of standard states of formation are important because these are

conveniently used to calculate changes in enthalpy, ΔH of many 

     reactions.  

4.      Give

examples that illustrate the use of standard heats of formation in

calculating changes in enthalpy or ΔH of reactions.

DEADLINE : 03/25/2022

Calculate vapor pressure lowering of a solution of 2.00g of asperin(molar mass=180.15g/mol) in 50.0g of methanol (CH3OH) at 21.2°C. Pure methanol has a vapor pressure of 101 torr at this temperature.

how many moles of sodium sulfate will be produced from 25.5 g

 of sodium hydroxide?

Balance a reaction between sodium trioxocarbonate and hydrochloric acid