Chemistry, 06.10.2019 09:10 yourfreeshoppep3u91x
At which of the following temperatures is the average kinetic energy of the molecules of a substance the greatest?
( a. 18.1 °c
( b. 20.4 °c
( c. 36.2 °c
( d. 65.4 °c
Answers: 2
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Chemistry, 22.06.2019 19:30
Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol
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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
At which of the following temperatures is the average kinetic energy of the molecules of a substance...
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