The spent acid from a nitration process contains 33% h2so4, 36% hno3 and 31% h2o. this is to be strengthened by the addition of concentrated h2so4 containing 95% h2so4 and nitric acid containing 78% hno3. the final strengths of mixed acid solution contains 40% h2so4 43% hno3 and the rest water. calculate : a. the amount of spent acid

b. the amount of concentrate h2so4

c. thr amount of concentrate hno3 to be mixed to produce 1500 kg of tge desired acid

13. calculate the initial concentration (before precipitation) of carbonate ions after the addition of each 0.05 ml of solution b to the 1.00 l beaker of solution a. divide the work among group members and write the answers in the table in model 3. assume the volume change as solution b is added is negligible. 14. notice the initial concentrations of zn2+ - and cu2+ in the table in model 3. a. explain how these were obtained from the data in model 2. b. as solution b is added and precipitates form, do these initial concentrations change? 15. use the data in model 2 to indicate the presence of precipitate (either znco3 or cuco3) after each 0.05 ml addition of solution b in model 3. 16. use the initial concentrations of carbonate ions and zinc ions to calculate the reaction quotient, qsp for the zinc carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3. 17. use the initial concentrations of carbonate ion and copper(ii) ions to calculate the qsp for the copper(ii) carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3.

What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro