General Chemistry Answers

Calculate the molar solubility of Ag₂SO₄ when dissolved in water (Ksp = 1.9 x 10^-5) (Please give your answer with 2 significant figures.)

The K_sp value for magnesium carbonate, MgCO₃, is 5.9 x 10^-6. If 2.50 g of magnesium carbonate is placed in 1.00 x 10² mL of water, how much (in g) magnesium carbonate will dissolve? (Please provide your answer with 2 significant figures.)

Calculate the value of the reaction quotient, Q, of silver iodate (AgIO₃) when 10.0 mL of 0.018 M AgNO₃ is mixed with 10.0 mL of 0.018 M NaIO₃. (Please give your answer with 2 significant figures.)

X g of a pure sample of iron (II) sulphide reacted completely with excess dilute hydrochloric acid to give 3.2 g of iron (III) chloride according to the equation blow . FeS + 2HCl = FeCl2 + H2S

(1)you are supply with 0.01 mold solution of a, b, c, and e with PH of 2,12,3.5,6.5,9 respectively(a) arrange the solution in order of increasing hydrogen ion concentration (b) which of the solution will turn litmus from red to blue (c) which of them is to be a solution of strong acid? Explain (d) explain what happens when equal volume of a and b are mixed. What is the PH of the mixture

(2) give two characteristics reaction each of an acid and a base

A ceramic plate has a shiny rim. The ceramic plate is mostly composed of silicon and oxygen atoms. The shiny rim is mostly silver. When the plate is heated in a microwave oven, sparks are observed. Compare the ionization energy values of silver to those of the silicon and oxygen atoms. Explain what is happening in the oven. Why are microwaveable containers usually non-metallic? Why are most pots and pans metallic?

The heat of dissolution of potassium carbonate is -30.9 kJ mol^-1. 

What would be the change in temperature if 4.00 g of potassium carbonate is dissolved in 0.10 L of water?

You are supplied with 0.01mol/dm^3 solutions of A B C D and E with PH values of 2,12,3.5,6.5, and 9 representative.

Arrange the solutions in other of increasing Hydrogen Ion concentration

What element with a mass number of 100 has 56 neutrons in its nucleus?

What are the importance of chloromethane