Chemistry, 13.11.2019 05:31 heavenwagner
Suppose a reaction was run that produces hydrogen gas and a sample of h2(g) collected. as a result of the collection 145 ml of water is displaced. the pressures of the gas and atmospheric pressure are equalized using the method described in this experiment. the atmospheric pressure is 745 mm hg. the temperature of the water and gas are identical at 22 c/ how many moles of h2 have have been evolved?
Answers: 2
Chemistry, 21.06.2019 23:50
2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit
Answers: 3
Chemistry, 22.06.2019 00:30
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.
Answers: 3
Chemistry, 22.06.2019 04:30
Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole
Answers: 1
Suppose a reaction was run that produces hydrogen gas and a sample of h2(g) collected. as a result o...
Mathematics, 12.11.2020 20:10
Mathematics, 12.11.2020 20:10
English, 12.11.2020 20:10
Mathematics, 12.11.2020 20:10
Mathematics, 12.11.2020 20:10
Mathematics, 12.11.2020 20:10
Arts, 12.11.2020 20:10
English, 12.11.2020 20:10
Mathematics, 12.11.2020 20:10
Mathematics, 12.11.2020 20:10
Engineering, 12.11.2020 20:10
Mathematics, 12.11.2020 20:10