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A bomb calorimeter with an insulating heat capacity is used to burn 5.682g of a chocolate candy bar. If the 1.00kg of water in the calorimeter then increased from 18.0220C to 56.1250C, what is the ?U for the chocolate in kJ/g chocolate
What is the molecularity of the following elementary reaction? NH2Cl(aq) + OH¯(aq) -> NHCl¯(aq) + H2O(l)
Cyclopentadiene is unstable because it rapidly undergoes a Diels-Alder reaction with itself. Carefully draw the structure of the product, showing stereochemistry clearly.
The heater used to heat 1400 L of air in a hot air balloon is turned off. c) A balloon filled with helium at an amusement park is left in a car on a hot day.
If a 0.10M solution of HA has a pH of 5.83 at 25 degrees C, what is deltaG0 for the acid's dissociation at 25 degrees C
An unknown element, X, reacts with chlorine to form a compound with the formula XCl2. Which element is most likely to be element X?
water for the temperature of the trapped gas, will the calculated mass percent of metal in the sample be greater than, less than, or equal to real mass percent?
What mass of sucrose should be combined with 461g of water to make a solution with an osmotic pressure of 8.80 atm at 280 K
What carbonyl compound would the following condensation product? Which of the following could result from a self-aldol condensation followed by dehydration?
one mole of B at 2 bar are separated by a partition and surrounded by a heat reservoir. when the partition is withdrawn, how much does the entropy change?
Calculate the empirical formula and the molar formula.
Construct a molecular orbital system for the basis set as the basis set, considering linear , bent , and cyclic gemetries
Water in the sample extracts into the methanol, which is then analyzed. If GC analysis of the methanol yields a peak height of 13.66, what is the % w/w water in the antibotic?
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