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Suppose that a certain molecule composed of only carbon and hydrogen has a straight chain backbone five carbons long and and contains double or triple bonds. What is minimum number of hydrogen atoms that the molecules must have.
If a new solution is made by diluting exactly 10.0 mL of the solution with exactly 20.5 mL of distilled water, what should the absorbance of the new solution be
Which species would act as the cathode in the following reaction? 4 Au(s) + 16 Cl-(aq) + 3 O2(g) + 6 H2O(l) 4 AuCl4-(aq) + 12 OH-(aq)
propane c3h8 is burned in a combustion chamber at a flow rate of 25.50 m3min with 30.0 excess air. if the propane and
Explain when 236.0ml of 0.830M of HCL is diluted with 141.0mL of water the molarity of the solution is
How many nucleons does the most abundant isotope of the atom in Period 3, Group IIIA contain, if it is assumed that there are only two naturally-occurring isotopes separated by one nucleon? Express your answer as an integer.
a 3.0 l sample of sih4 gas at 356 mm hg pressure and 25degc is allowed to react with o2 gas. what volume of o2 gas in
need to dissolve CaCl2 in water to make a mixture that is 31.0% calcium chloride by mass. If the total mass of the mixture is 405.5 g, what masses of CaCl2 and water should be used?
calculate the ph of each of these given solutions a 0.76 m koh bnbsp 0.0010 m hclcalculate the hydrogen ion
How many circular clarifers will be needed if each one is 90 ft in diameter and the surface overflow rate must be less than 575 gal/ft^2/day at the average daily flow rate?
a 0.500 l solution of 7.50 m hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. calcium
Calculate E for a system that absorbs 814.0 kJ of heat from its surroundings and does 676.0 KJ of wor on its surroundings.
when 1.50 l of 1.00 m na2so4 solution at 30.0 degrees celcuis is added to 1.50 l of 1.00 m bano32 solution at 30.0
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