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If antique brass is 30.0% zinc and 70.0% copper, how many grams of antique brass can be made from 18.0 grams of zinc and 35.1 grams of copper?
methyl trifluoroacetate is more reactive than methyl acetate, in nucleophilic acyl substitution reactions. Explain.
adiabatic bomb calorimeter with a heat capacity of 5.343 kj/K. The reaction resulted in an increase of 1.173K. Calculate delta U, delta H, and delta A
The mass spectrum of an organic compound shows the relative abundances of M to be 44.42% and M 1 to be 10.57%. Assuming the peaks are caused by 12C and 13C isotopes
What is the composition in mole fractions of a solution of benzene and toluene that has a vapor pressure of 35 torr at 20 °C? Assume the mixture forms an ideal solution.
what is the enthalpy of the reaction 2X(aq)+Y(l) ? X2Y(aq) given that the solution has the same heat capacity as water?
How many moles of oxygen are needed for the complete combustion of 9.88* 10^21 molecules of hexane?
Suppose a snack bar is burned in a calorimeter and heats 2,000 g water by 20 °C. How much heat energy was released? (Hint: Use the specific heat equation.) Give your answer in both joules and calories.
An iron (II) complex of the formula FeL5 2+ might have either square pyramidal or trigonal bipyramidal geometry. Would it be possible to differentiate between these geometries on the basis of a magnetic susceptibility? How would the number of unpa..
How many moles of Urea were used to creat this tempreature difference? given the molecules weight (60.0551g/mol), how money grams of urea was used to give this change temperature value?
Calculate the pressure that CCl4 gas will exert at 40 degrees celsius if 1.00 mol occupies 28.0 L, assuming that A. CCl4 obeys the ideal-gas law
A water treatment plant has a flowrate of 40,000 m3/d. If the overflow rate is 25 m3/d/m2, determine the following:
Calculate the number of sodium ions in (6.107x10^1) g sodium phosphate. 2. An aqueous solution of 10.0 grams of ammonium sulfide is mixed with an aqueous soluion of 10.0 grams of copper (II) chloride. What is the formula of the compound that precipit..
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