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When a 2.00 g sample of RbBr is dissolved in a calorimeter that has a total heat capacity 0.6306 kJ*K^-1, the temperature decreases by 0.420 K. Calculate the molar heat of solution of RbBr.
Draw electron-flow arrows on the structure on the left to indicate how the electrons reorganize to give the structure. Please Draw all steps and add charges where needed.
how many molecules of carbon dioxide are produced when 134 molecules of acetylene hcch to react in excess oxygen
The value of deltaS0 for the following reaction is - 233J/K at 250C. What is the entropy of H2 (g) at 250C? C2H2 (g) + 2H2 (g) ----> C2H6 (g) a.131 b.204 c.102 d. 262
determine what is the percent by mass of sodium phosphate in a 0.142m na3po4aq solution? if it is given that it has a
Consider a sample of excited atoms that lie 3.483*10^-19 J above the ground state. Determine the emission wavelength of these atoms.
benzene ring with a 2 carbonyl joined by an O in the middle and a iso propal group is on the other carbonyl. (would be a symmetric anhydride if it weren't for the benzene and isop-ropral substituents on the two carbonyls)
granite rock has a specific heat capacity of 0.80 jmiddotdegc-1middotg-1. a 15 g rock was warmed by 202 j of energy
What are the 8 balanced molecular equations for all of the chemical reactions involved in the copper cycle experiment
When a 5.60 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 22.3 degrees Celsius to 41.6 degrees Celcius.
Predict the rate of change in the concentration of N2O over this time interval. In other words, what is dt [N2O]/ dt?
A sample of nitrogen occupies a volume of 546 mL at STP.What volume would nitrogen occupy at 177C under a pressure of 380 torr?
How is concentration an intensive property? I mean if you add more amount of a substance(mass), the number of moles increase and so the concentration increases.
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