Chemistry, 22.11.2019 03:31 jhanellemo0112
Abuffer consists of 0.21 m nah2po4 and 0.34 m na2hpo4. phosphoric acid is a triprotic acid (ka1 = 7.2 × 10−3, ka2 = 6.3 × 10−8, ka3 = 4.2 × 10−13). (a) which ka value is most important to this buffer? ka1 is most important. ka2 is most important. ka3 is most important. (b) what is the buffer ph?
Answers: 3
Chemistry, 22.06.2019 11:30
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
Chemistry, 22.06.2019 15:30
Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)
Answers: 1
Abuffer consists of 0.21 m nah2po4 and 0.34 m na2hpo4. phosphoric acid is a triprotic acid (ka1 = 7....
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