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1. Your expense account permits you to spend $80.00 a day when you are on a trip. If you have a week-long trip to tiny country of Kratvia, where the exchange rate is 3.50 kratvels per dollar, explain how many kratvels can you spend during the week? (7 days)
2. An architect designs a room that has an interior measurement of 50.00 feet by 30.0ft by 10.0 ft. Explain what is the volume of the room in cubic ft?
Presuming the same molar amounts of Al Mg and Ca were used in this experiment for which would there be more H2 gas evolution. For which would more HCl stay put in the reaction flask after the reaction
Assuming no heat loss to surrounding, write down the energy balance equation for the system and find out change in internal energy and final temperature.
After completing th calculations below, sketch the PH curve for the titration of 30.0 mL of a 0.125M solution of a weak acid, HA(ka=1.3*10^-5) with 0.125 M KOH. indicate the pH at a) the beginning of the titration (o.o mL titrant) after the additi..
draw a detailed mechanism including arrows to show electron flow for the synthesis of acetylferrocene from ferrocene
PbCl2 has a Ksp of (1.7 x 10^-5) while it dissolves it has an ionic strength that interferes with itself. Using activity, iterations along with approximations, compute the number of grams of PbCl2(s) that dissolves in 750 Ml of H20.
a 1.0cm3 sample of lead and a 1.0cm3 of glass. I drop each in a separate beaker of water. How do the volumes of water that are displaced by the samples compare?
A solution containing 80. G of NaNO3 in 75 g of H2O at 50°C is cooled to 20°C. How many grams of NaNO3 remain in solution at 20° C?
What would be the charge of the imidazole side chain of histidine at pH 7? Assume the pKa of the side chain is 6.0. 8) Assume the pKa of the alpha-carboxyl group = 2.0 and the pKa of the alpha-amino group = 10.0. What would be the net charge of gly..
Calculate the maximum mass of calcium metal that should be used in this experiment with a 50mL eudiometer tube for gas collection. Assume that the hydrogen generated occupies 45 mL at STP. The experiment is: reaction of .054 g of Al with 100 mL of..
the ratio of carbon hydrogen and oxygen atoms in a molecule is 461. what is the molecular formula of the compound if
How many moles of O2 are needed to burn 1.05 mol of C8H18
what are the standard half cell potentials; E anode and E cathode? If the electrochemical cell is allowed to operate as a gavanic cell, which solution species will be oxidized, which solution species will reduce
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