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How much energy is required to heat 36.0g H2O from a liquid at 65 C to a gas at 115 C?
The physical data may be useful.
DH vap = 40.7 kJ/mol
C liq = 4.18 J/ g C
C gas = 2.01 J / g C
C sol = 2.09 J / g C
T melting = 0 C
T boiling = 100 C
Thirteen grams of titanium react with 60.0 g of bromine. How many grams of titanium(IV) bromide are produced, assuming 100% yield.
A stream of air (21% O2 m, the rest N2) flowing at a rate of 10.0 kg/h is to be mixed with a stream of CO2 inside a mixer. The CO2 enters the mixer at a rate of 20.0 m/h at 150 ?C and 1.5 bar. What is the mole percent of CO2 in the product stream
If the core electrons were totally effective at screening the valence electrons and the valence electrons provided no screening for each other, what would be the effective nuclear charge acting on the 3s and 3p valence electrons in P?
Use the concept of hydrogen bonding to explain which would hurt more: a belly flop dive into a pool of water or oil. (hint: most molecules in oil are non-polar)
If two liquids A and B that both boil at 100 ºC when pure form a non-ideal, positively deviating solution, what will be the boiling point for a 50:50 mixture of A and B?
the calculated H neutzn be higher, lower, or the same as the literature H neutzn? briefly explain this difference as a result of using only one graduated cylinder for the experiment
a particular first-order reaction has a rate constant of 1.35 times at 25degc. what is the magnitude of k at 95degc if
Calculate the mass of CuS produced and the concentration of H+ ion produced by bubbling H2S into 1.00 L of 0.10 M CuCl(aq) solution.
Arrange the molecules in order of decreasing boiling point. Rank the molecules from highest boiling point to lowest boiling point.
Iron metal is formed during the reduction of iron(III) oxide: Fe2O3 + 3CO 2Fe + 3CO2. When 28.4 kg of Fe2O3 react with 17.0 kg of CO and 4.2 kg of Fe are recovered, what is the percent yield for the reaction
The reaction will be spontaneous at high temperatures because increasing the temperature of a system with a negative change in S eventually results in a positive change in G.
After filtration, the remaining NaCO3 solution needed 0.004moles of H Cl for neutralization. Calculate the number of moles of NaCO3 remaining after filtration., therefore deduce the number of moles of BaCl2 which reacted with the NaCO3 solution.
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