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Problem- What is the initial temperature of a sample of water if by the addition of 12,258J, a 55g sample has a final temp of 95 C? The specific heat of water is 4.184J/gC. Please show work
Using textbook reference solve the reactions given in above problem
Trimethylamine (CH3)3N is a substance responsible in part for the smell of fish. it has a boiling point of 3.5 degrees c and a molecular weight of 59.1.
The stockroom has a solution labeled 50.0% H2SO4 (d = 1.3977 g/mL).Calculate the following for the solution: (a) molarity, (b) molality, (c) molarity of H+, (d) mole fraction of H2SO4.
A mixture of heptane/decane at 1.8 bar, 120?C contains 80% by mol heptane. At what pressure should it be flashed to obtain a stream that is 90% rich in heptane? What are the composition of the liquid and the amounts of the two phases?
Question- For a certain reaction, the frequency factor A is 5.6 X 10(9) s -1 and the activation energy is 22.6 kJ/mol. What is the rate constant for the reaction at 81C
The solubility product of PbBr2 is 8.9x10^-6. Determine the molar solubility a) in pure water, b) in 0.20M KBr solution, c) in 0.20M Pb(NO3)2 solution.
Problem- For the following reaction, what volume of NO2 can be produced from 0.70 L of O2 (measured at the same temperature and pressure), assuming an excess of NO
what is the minimum amount of 6.0 M H2SO4 neccessary to produce 23.5 g of H2(g) according to the following reaction? 2Al(s) +3H2SO4(aq) --> Al2(SO4)3(aq) + 3H2(g)
a standard solution of 0.243 m naoh was usedto determine the concentration of a hydrochloric acid solution. if46.33 ml
The resulting solution required 40.70 mL of 0.08765 M AgNO3(aq) to precipitate the Cl^- (aq) and Br^- (aq) as AgCl(s) and AgBr(s).
A campfire is a chemical reaction involving wood and oxygen from the air. In light of the law of conservation of mass explain what happens to the mass of the wood during the reaction. Define how is mass conserved if the wood disappears
The solubility of CO2 gas in water is 0.15g/100mL at a CO2 pressure of 760mmHg. What is the solubility of CO2 in a soft drink (which is mainly water) that was bottled under a CO2 pressure of 4.5atm
Calculate expected final temperature for 25 grams of 70 C hot water melting 15 grams of 0 C ice. Repeat this calculation
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