Chemistry, 31.08.2019 15:30, jazmaine1217
Which two compounds have the same molecular formula but different chemical and physical properties?
(1) ch3ch2cl and ch3ch2br
(2) ch3chch2 and ch3ch2ch3
(3) ch3cho and ch3coch3
(4) ch3ch2oh and ch3och3
Answers: 2
Chemistry, 22.06.2019 20:00, jalenevoyles
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch 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
Which two compounds have the same molecular formula but different chemical and physical properties?...
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