11. The bromide impurity in a 2.00 g sample of a metal nitrate is precipitated as...
A 2.018-g sample of a metal bromide. MBr2, is dissolved in water and treated with excess aqueous silver nitrate. The silver bromide (AgBr) that formed weighed 2.721 g. Calculate the atomic mass of Mand identify M. (molar mass of AgBr - 187.80 g/mol)
1. A 0.4187 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride ion is precipitated as AgCl by the addition of an excess of silver nitrate. The mass of the resulting AgCl is found to be 0.9536 g. What is the mass percentage of chlorine in the original compound? ________% 2. A student determines the calcium content of a solution by first precipitating it as calcium hydroxide, and then decomposing the hydroxide...
A 21.5 g sample of nickel was treated with excess silver nitrate solution to produce silver metal and nickel(II) nitrate. The reaction was stopped before all the nickel reacted, and 36.5 g of solid metal (nickel and silver) is present. Calculate the mass of solid silver metal present.
Question 71. If 25.0 mL of 0.150 M aluminum bromide reacts with 15.0 mL of 0.200 M silver nitrate, what mass of silver bromide is produced? AgBr ()+ AI(NO3)3 (aq) AIBr3 (aq)+AgNO3 (aq) a) 2.11 x 104 g b) 2.11 g c) 5.63 x 104 g d) 0.563 g e) none of the above Question 72 What is the molarity of aluminum ions in the above question before the reaction has taken place? a) 0.150 M A13 b) 0.350 M...
6 b) In the laboratory a student combines 46.6 mL of a 0.322 M potassium sulfate solution with 19.0 mL of a 0.503 M cobalt(II) sulfate solution. What is the final concentration of sulfate anion ? M 18 a) A 0.5655 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide ion is precipitated as AgBr by the addition of an excess of silver nitrate. The mass of the resulting AgBr is found...
A 2.00 g sample of silver nitrate is dissolved in water and then reacted with 0.250 g of copper metal, according to the reaction below. Answer the questions about this process. 2 AgNO3 (aq) + Cu (s) --> Cu(NO3)2 (aq) + 2 Ag (s) What mass of the excess reactant remains after the reaction goes to completion? (I want to see if you guys get this correct because I have no idea how to approach because it doesn't tell us...
A sample of P2O5 contains some H3PO4 impurity. A 0.405-g sample is reacted with water (P2O5 + 3H2O → 2H3PO4), and the resulting solution is titrated with 0.250 M NaOH(H3PO4 → Na2HPO4). If 42.5 mL is required for the titration, what is the percent of H3PO4 impurity?
1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml of solution. The concentration of solution is: A) 0.82 M B) 0.16 M C) 0.08 M D) 4.1 M E) 8.2 M 2. You have 75.0 mL of a 2.50 M solution of Na,CrO(ag). You also have 125 mL of a 2.01 M solution of AgNOs(ag), Calculate the concentration of Cro. after the two solutions are mixed together. A) 0.00 M B) 0.309 M...
4. What mass of silver (1) bromide can form when 350 mL of 0.15 M silver (I) nitrate is mixed with magnesium bromide, with the other product being magnesium nitrate? a. 4.93 g b. 9.86 g c. 19.73 g d. 52.50 g e. 0.279 g
2. A 0.4682 g sample of a metal is dissolved in a total volume of 50.0 mL. a. If the metal was pure silver, how many mL of a 0.1215 M KSCN solution would be required to react with a 5.00 mL aliquot of the alloy solution? b. If the metal was pure copper, what would be the absorbance of the solution?