Chemistry Answers

If 3.2443 moles of carbon dioxide are produced, how many grams of iron (III) oxalate were reacted if the reaction proceeds with a 99.6% yield?

_{What is cloning? Cite itd advantages and disadvantages}

What is the expression for Kc for this reaction Ni (CO)4 (g) ⇆ Ni (s) + 4CO (g)

What is the Ionic Strength of a solution that is 0.8M in HCl and 0.05M of H3PO4

What is the molecular mass of a non-electrolyte solute in a solution that contains 0.6kg of solute and 200g of benzene with a freezing point equal to 5.4°C? The freezing point of pure benzene is 5.53°C/m. The freezing point constant of benzene is 5.12°C.

Photosynthesis in plants converts carbon dioxide and water into glucose and oxygen according to the equation below.

                      6CO₂(_g) + 6H₂O(_l) → C₆H₁₂O₆(_s)  + 6O₂(_g)

Substance

CO₂

H₂O_(l)  

C₆H₁₂O₆(_s)  

O₂(_g)

∆H (kJ/mol)

-393.5

-285.8

-1273.3

S° (J/mol ∙ K)

213.6

69.9

209.2

205.0

Instruction: Calculate the ∆H°, ∆S°, and ∆G°. Is the reaction spontaneous at standard condition?

Photosynthesis in plants converts carbon dioxide and water into glucose and oxygen according to the equation below.

                      6CO₂(_g) + 6H₂O(_l) → C₆H₁₂O₆(_s)  + 6O₂(_g)

Substance

CO₂

H₂O_(l)  

C₆H₁₂O₆(_s)  

O₂(_g)

∆H (kJ/mol)

-393.5

-285.8

-1273.3

S° (J/mol ∙ K)

213.6

69.9

209.2

205.0

Instruction: Calculate the ∆H°, ∆S°, and ∆G°. Is the reaction spontaneous at standard condition?

calculate the mole fraction of the solute in the following solutions:

a. 100 g C2H6O in 100 g H2O

b. 30% HCl solution by mass

if the partial pressures are oxygen 420 torr and helium 85 torr what is the partial pressure (torr) of the nitrogen in the mixture

13.2 grams of NaC2H3O2 are added to 1.00 L of a .100 M solution of acetic acid to form an acid buffer. Ka for acetic acid is 1.8e-5. What is the pH of the solution?