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Question 9 3.5 pts How many moles of lead metal are produced when a solution of...
Question 17 3.5 pts How many moles of salt is produced when solutions of barium chloride and sodium chromate are added to a beaker? (Assume the reaction goes to completion.) O 1 O 2 o 3 04 05
6 pts D Question 14 How many grams of chromium metal are plated out when a constant current of 8.00 A s passed through an aqueous solution containing Cr ons for 640. minutes? HTML Editor U A
When a solution of potassium iodide is mixed with a solution of lead nitrate, a bright yellow solid precipitate forms Calculate the mass of the solid produced (molar mass = 461 g/mol) when starting with a solution containing 242.36 g of potassium iodide (molar mass = 166 g/mol), assuming that the reaction goes to completion. Give your answer to three significant figures 2KI (aq) Pb(NO3)2 (aq) » Pbl2 (s) 2KNO3 () g
When sodium metal is added to chlorine gas, sodium chloride is produced. How many grams of sodium metal are needed to make 1.32 moles of sodium chloride?
Question 27 2 pts How many moles of oxygen atoms are in 2.30 moles of Mg(C, H:02),? 9.20 moles O 4.60 moles O 1.15 moles 2.30 moles 0.575 moles Question 28 2 pts Crenation of red blood cells occurs when the cells are placed in a(n) Ophysiological saline solution isotonic solution ОООО hypertonic solution hypotonic solution Question 29 2 pts What is the oxidation state of carbon in C2H4O? -2 +2 0 +1 0-1 U Question 30 2 pts Use...
How many moles of NaCI are produced when 0.5 moles of Na2COs react with excess hydrochloric acid in the acid-base double displacement reaction according to the following equation? Na2COs(s)+2HCl(aq) 2NaCl(aq)+ H20()+ CO2(9) 8.6 g of Na2COs has been neutralised how many grams of NaCI must have been produced? How many moles of Pb(NO3)2 must have reacted with excess KI if 1.5 moles of Pbl2 were produced in the double displacement reaction according to the following equation? Pb(NO3)2(aq) + 2Kl(aq)- Pbl2(s)...
QUESTION 9 How many moles of NO can be produced from the reaction of 7.00 moles of NH3 with 7.00 moles of O2? 4 NH3 + 502 — 4 NO + 6H20 a. 2.40 b.6.00 c. 7.00 d.5.60
b.b/ pts When the following redox reaction is balanced (assume acidic solution), how many moles of water appear, and on what side: MnO4 + Cl --> Mn2+ + Cl2 4. right side 4, left side 8. left side 8, right side
QUESTION 7 How many grams of chromium metal can be plated out when a constant current of 8.00 A is passed through an aqueous solution containing on for 30 minutes? Enter your answer with one decimal place and no units
Determine how many mL of solution A(acetic acid-indicator solution) must be added to solution B (sodium acetate indicator solution) to obtain a buffer solution that is equimolar in acetate and acetic acid. You will need to refer to the Experimental Procedure, partcularly the section on calculations, to answer this question. Show all calculations. of an indicator 2. Determine how many ml of solution A (acetic acid-indicator solution) must be added to solution B sodium acetate-indicator solution) to obtain a buffer...