Chemistry, 24.11.2019 06:31 sciencecool98821
In which sample of water do the molecules have the highest average kinetic energy 1)20. ml at 100.°c 2)40. ml at 80. °c 3)60. ml at 60.° c 4)80. ml at 40.° c
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What volume does 1.70 ×10–3 mol of chlorine gas occupy if its temperature is 20.2 °c and its pressure is 795 mm hg?
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6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity
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Chemistry, 23.06.2019 06:30
Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.
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Chemistry, 23.06.2019 09:10
A155.0 9 piece of copper at 182 °c is dropped into 2500 g of water at 23.9 °c. (the specific heat of copper is 0.385 1/9°c.) calculate the final temperature of the mixture. (assume no heat loss to the surroundings.)
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In which sample of water do the molecules have the highest average kinetic energy 1)20. ml at 100.°c...
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