Question 1 0.4 pts Consider a 0.15 M solution of Al(NO3)3 in water. Which of the...
9. Consider a 0.15 M solution of H2SO4. Which of the following statements is NOT true? A) This solution would turn litmus to red. B) This solution could neutralize a base. C) This solution has a pH of 11.20. D) This solution could dissolve metal. E) none of the above 10. What is the concentration of the hydronium [Halo ons in a neutral solution? 11. What is the concentration of hydronium ions in an acidic solution? A) 0.0 M B)...
What is the freezing point of a 1.327 m aqueous solution of aluminum nitrate, Al(NO3)3? The Kf of water is 1.86°C/m. ________°C
5.0 g of solid Al(NO3)3 was added to enough water to make a 100.0 mL solution. Al(NO3)3 is very soluble in water. 1. Write out the dissolution reaction that occurs when the solid Al(NO3)3 was added to water. 2. What is the concentration, in Molarity, of Al(NO3)3 once it is dissolved in the water? 3. If 53 mL of water was added to the original Al(NO3)3 solution described above, what is the new concentration in Molarity? 4. What is the...
Question 7 3 pts Which of the following best describe an aqueous solution of Ca(NO3)2? O acidic salt O basic salt not a salt O neutral salt
1 pts Question 7 Consider a weak acid in a solution with a pH of 5.0. Which of the following statements is true? O The weak acid is a proton acceptor O The weak acid has a lower affinity for its proton than does a strong acid. At its pKa, the weak acid will be totally dissociated. O The [H+] is 107M.
b) How many mLs of an aqueous 0.1502 M HCl solution are needed to be added to completely precipitate all of the Pb? ions from 20.00 mL of an aqueous 0.100 M leader nitrape solution? 2 013. So c) How would a chemist correctly make 50.00 mL of an aqueous 1.500 x 102 M La(NO3)3 solution from an aqueous 0.500 M La(NO3)3 solution? wwed bud ei na siwedd li 6) (19 pts) What is the Molarity (after mixing) of the...
13&14 QUESTION 13 What concentration should a solution of Al(NO3)3 be, which is isotonic with a 0.6M solution of LiBr?! A. 1.2M B.0.3M C. 1.0M D. 0.6M QUESTION 14 Below is a list of equilibrium constants: i. 2.2 ii. 1.2x10-3 iii. 2.7x10 iv. 0.0068 V. 76 Which ones favor the reactants? OA. HIV B. I, il, iv C.1, W, Iv, v D. ll only
Consider a solution which is 0.10 M in HF and 0.15 M in KF. If 0.10 moles of NaOH is added to the solution, which of the following is true? The Ka for HF is 3.5 x 10-4 (at 25ºC) Group of answer choices The pH of the solution will not change. The buffer capacity of the solution will be exhausted. The pH of the solution will decrease. The Ka of HF will decrease.
1. When 0.100 L of a solution containing 0.15 M KBr is added to 0.100 L of a solution containing 0.15 M Pb(NO3)2, what precipitate will form? PbBr2 PbBr Pb(NO3)2 KNO3 K(NO3)2 PbK KBr 2. What is the driving force for the reaction described in Q1 above? The formation of a new insoluble ionic compound The formation of a gas the formation of water molecules the formation of new ions the formation of a new soluble ionic compound 3. Write...
b. How would you prepare 225.0 mL of 1.33 M HCl from a 6.00 M stock solution? C. When 25.00 mL of 0.695 M HCl reacts with an excess of silver nitrate, will a precipitate form? Write the net ionic equation for this reaction. How many grams of precipitate can be theoretically obtained? d. What volume of 0.2500 M strontium hydroxide is required to completely react with 75.00 mL of 0.07942 M HCI? e. When 37.5 mL of 0.439 M...