A) A student measures the molar solubility of copper(II) hydroxide in a water solution to be 3.49×10^-7 M.  
Based on her data, the solubility product constant for this compound is  .

B) A student measures the molar solubility of nickel(II) cyanide in a water solution to be 1.91×10^-8 M.  
Based on her data, the solubility product constant for this compound is  .

C) A student measures the molar solubility of silver carbonate in a water solution to be 1.24×10^-4 M.  
Based on her data, the solubility product constant for this compound is  .

Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00 g sample of each compound. One sample contains 0.31 g of X and the other contains 0.40 g of X. Identify plausible sets of formulas for these two compounds. X2Y and X3Y X2Y5 and X3Y5 XY and X2Y X3Y and X4Y XY3 and XY4 XY and X3Y X4Y2 and X3Y

For each of the following reactions, 25.0 g of each reactant is present initially.

Determine the limiting reactant.

2Al(s)+3Br2(g)→2AlBr3(s)

Calculate the grams of product in parentheses that would be produced.
(AlBr3)

Determine the limiting reactant.
4NH3(g)+5O2(g)→4NO(g)+6H2O(g)

Calculate the grams of product in parentheses that would be produced.
(NO)

Determine the limiting reactant.
CS2(g)+3O2(g)→CO2(g)+2SO2(g)

Calculate the grams of product in parentheses that would be produced.
(CO2)

1. If 2.000 g of hydrated magnesium chloride are heated to remove the water of hydration, the anhydrous salt that remains has a mass of 0.9366 g. Determine the following:(A)The mass of water that was lost upon heating. (B)The moles of water that were lost upon heating. (C)The moles of magnesium chloride that remained after heating. (D)The mole ratio for the magnesium chloride and the water. (E)The formulas for this hydrate is ___________________________________________(F)The name for this hydrate is ______________________________________________

P4O10 is classified as an acidic oxide because it

A. reacts with acids to produce a salt.

B. is insoluble in water.
C. reacts with water to produce OH– .
D. gives a solution of phosphoric acid, H3PO4, on dissolving in water.
E. can act as a Lewis base by donating electron pairs.

A 9.59 g sample of calcium sulfide was decomposed into its constituent elements, producing 5.33 g of calcium and 4.26 g of sulfur. Which of the statements are consistent with the law of constant composition (definite proportions)? The mass percentage of calcium plus the mass percentage of sulfur in every sample of calcium sulfide equals 100%. The ratio of calcium to sulfur will vary based on how the sample was prepared. The mass ratio of Ca to S in every sample of calcium sulfide is 1.25. Every sample of calcium sulfide will have 5.33 g of calcium. Every sample of calcium sulfide will have 55.6% mass of calcium

How can you combine standard addition and internal standard techniques in an HPLC experiment?

When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of OH- will be??

CN-(aq) + MnO4-(aq) --> CNO-(aq) + MnO2(s)

Resonance results in a weaker base and a weaker nucleophile?

suppose you had a mixture of silver iodide, potassium nitrate, ethyl alcohol, and water. if you wanted to recover each of the compenents in pure form, which methods: decantation after sedimentation, decantation after centrifugation, or filtration would you use? Explain how you would carry out this separation and recovery, indicating exactly what components you have at each step of procedure.

Which one of these salts will form a basic solution on dissolving in water?

A. NaCl

B. KCN

C. NaNO₃

D. NH₄NO₃

E. FeCl₃

Please, I need to get this right. No one is yet to get it right, it has been answered on Chegg but is wrong

In a psychrometric process, Volume of a classroom = 300 m^3. and temperature in the room is T= 20 oC, P=100 kPa relative humidity = 50%

if all the water vapor of air in the room is converted to liquid at the same temperature, what is the volume of the liquid water (mL).

I believe the Volume of water vapor should equal volume of air and equal volume of the room, since its an enclosure. I also know that the volume is going to decrease if water vapor is completely converted to liquid water. How is this calculation done to get the right volume of liquid water

Kindly help with this.

Explain why temperature has an effect on reaction rate.

Explain why concentration has an effect on reaction rate.

The average human body contains 6.50 L of blood with a Fe2+ concentration of 2.50×10^−5 M . If a person ingests 12.0 mL of 17.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion?

For example, the iron(II) ion, Fe2+Fe2+, can combine with the cyanide ion, CN−CN−, to form the complex [Fe(CN)6]4−[Fe(CN)6]4− according to the equation

Fe2+(aq)+6CN−(aq)⇌[Fe(CN)6]4−(aq)Fe2+(aq)+6CN−(aq)⇌[Fe(CN)6]4−(aq)

where Kf=4.21×10^45

This reaction is what makes cyanide so toxic to human beings and other animals. The cyanide ion binds to the iron that red blood cells use to carry oxygen around the body, thus interfering with the blood's ability to deliver oxygen to the tissues. It is this toxicity that has made the use of cyanide in gold mining controversial. Most states now ban the use of cyanide in leaching gold out of low-grade ore.

This experiment involves testing protein stability in a variety of solutions. Describe the effect you suspect each will have on the protein’s environment (ex: increases pH, competes for hydrogen bonds, increases hydrophobicity, etc.) and predict whether or not the protein will remain folded. Look up the structures of any chemical you are not familiar with.

• Sodium phosphate buffer
• DI Water
• NaCl
• Soap Solution
• NaOH
• HCl
• Urea
• Acetone