Chemistry, 05.03.2020 19:15, tatejordan02
The analysis was performed by dissolving an antacid tablet in 75.00 mL of 0.1055 M HCl. The excess acid was back-titrated with exactly 44.97 mL of 0.125 M NaOH. The average weight of a tablet is 1.045 g. The tablet came from a bottle of 125 tablets that cost $3.49. If the tablet actually contained 150 mg of CaCO3, calculate the % error (Appendix IB).
Answers: 2
Chemistry, 21.06.2019 13:30, Unstinct
Lithium diisopropylamide [(ch3)2ch]2nli, referred to as lda, enjoys many uses as a strong base in synthetic organic chemistry. it is customarily prepared by the reaction of diisopropylamine [(ch3)2ch]2nh with butyllithium. draw the products of the reactions in the appropriate boxes and select the acid, base, conjugate acid, and conjugate base. be sure to answer all parts.
Answers: 2
Chemistry, 21.06.2019 20:50, britotellerialuis
Evaluate this exponential expression,8. (2 + 3)2 – 42
Answers: 3
Chemistry, 22.06.2019 05:30, madisonrosamond99
Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?
Answers: 2
Chemistry, 22.06.2019 13:00, jaylanmahone223
6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.
Answers: 1
The analysis was performed by dissolving an antacid tablet in 75.00 mL of 0.1055 M HCl. The excess a...
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