Chemistry, 20.12.2019 00:31 stephnham6352
Oxygen gas generated in an experiment is collected at 25.0°c in a bottle inverted in a trough of water. the total pressure is 1.000 atm corrected for atmospheric pressure. when the water level in the originally full bottle has fallen to the level in the trough, the volume of collected gas is 1750 ml. how many moles of oxygen gas have been collected given the vapor pressure of water at 25.0°c is 23.8 mm hg?
Answers: 1
Chemistry, 21.06.2019 19:30
Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.
Answers: 1
Chemistry, 21.06.2019 23:00
Select the correct answer. given: 2libr + ba → babr2 + 2li in this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced? a. 1.18 mol b. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol
Answers: 2
Chemistry, 22.06.2019 20:00
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
Chemistry, 22.06.2019 20:30
A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction
Answers: 2
Oxygen gas generated in an experiment is collected at 25.0°c in a bottle inverted in a trough of wat...
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