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Calculate the heats of combustion for the following reactions from the standard enthalpies of formations listed in appendix 3:
(a) 2H2(g) + O2(g) = 2H2O(l)(b) 2C2H2(g) + 5O2(g) = 4CO2(g) + 2H2O(l)
The reactions represented below are all spoontaneous as written. For each, write the anode and cathode half - reactions and indicate the signs of the electrodes.
What is the rate constant for the reverse reaction at the same temperature?
A solution of 0.264 M NaOH is used to neutralized 54.0 mL H3PO4 solutions. if 1.0 mL of NaOH is required to reach end point what is the molarity of H3PO4
suppose that a 5.0X10^-5 M solution of Ba(OH)2 is prepared. What is the pH of the solution?
The molecular geometry of the ammonium ion, NH4+, is most similar to the molecular geometry of
what is the structure including functional groups? stereochemistry racemic or single enantiomer?bull does the structure
How many moles of gas are there in a gas-filled balloon, which has a volume of 67.0 L at a pressure of 742 mmHg and a temperature of 25.0°C?
The molecules CO2 and SCL2 are both of the general molecular type AB2, but one is polar and one is not. Which molecule is polar?
what is the density of sample of ammonia gas if the pressure is 705mmHg and the temperature is 63.0 degrees C?
an experiment requires 44.0 g of ethylene glycol a liquid whose density is 1.114 gml. rather than weigh the sample on a
1. so2 reacts with h2s as followsnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbsp 2h2s so2 rarr 3s 2h2owhen
What is the rate constant (with units) if the rate of reaction is 1.23Ms- and the concentration of the Ru cluster is .050 M and the azide concentration is .025 M?
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