How hot is magma?
27 points...
Answers: 1
Chemistry, 21.06.2019 18:30
Asample of the male sex hormone testosterone, c19h28o2, contains 3.88Ă10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
Answers: 1
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9Ă10â3 , =6.2Ă10â8 , and =4.8Ă10â13 ). to find the ph of a buffer composed of h2poâ4(aq) and hpo2â4(aq) , which p value should be used in the hendersonâhasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Computers and Technology, 18.07.2019 10:50
Biology, 18.07.2019 10:50
Social Studies, 18.07.2019 10:50
Social Studies, 18.07.2019 10:50
Biology, 18.07.2019 10:50
History, 18.07.2019 10:50