Chemistry, 20.10.2019 20:30 4300224102
A25.00 ml flask contains methane (ch4) gas at 22.5°c. the pressure in the flask is 225.2 mmhg. how many moles of methane are in the flask?
Answers: 1
Chemistry, 22.06.2019 07:00
If there is any 12 to 14 girls that need a boyfriend just follow me and let me know
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Chemistry, 22.06.2019 10:50
How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.
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Chemistry, 22.06.2019 17:30
What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.
Answers: 1
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
A25.00 ml flask contains methane (ch4) gas at 22.5°c. the pressure in the flask is 225.2 mmhg. how m...
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