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A gas mixture contains 75.2% nitrogen and 24.8% krypton by mass. What is the partial pressure of krypton in the mixture if the total pressure is 884mm Hg
The decomposition of urea in 0.1 M HCl is first order in urea and first order overall. When [urea] = 0.200 M , the rate at 61.0 °C is 8.56 x 10-5 M/s. What is the concentration of urea in this solution after 4751 s if the starting concentration is 0..
Calcium nitrate will react with ammonium chloride at slightly elevated temperatures, as represented in the equation Ca(NO3)2(s) + 2NH4Cl(s) ? 2N2O(g) + CaCl2(s) + 4H2O(g). What is the maximum volume of N2O at STP that could be produced using a 2.4..
An acre of corn can produce about 375 gallons of ethanol, using only the kernel of the corn for conversion to ethanol. Assume the energy input to produce an acre of corn is 15000000 kJ.
Use ΔG=ΔH-TΔS to calculate the standard free energy change, ΔG, at 25oC for the following reaction: CaCO3(s)-->CO2(g) + CaO(s)
Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown substances they find in the course of their duties
Which of the following chemical equations corresponds to the standard molar enthalpy of formation of N2O
What is the technique for securing a piece of filter paper into a Buchner funnel for vaccum filtration? c) The alum crystals are washed of contaminants with an alcohol-water mixture rather than with deionized water. Explain.
3-bromo- 1-butene and 1-bromo-2-butene undergo sN1 reaction at nearly the same rate even though one is a secondary halid and the other is primary why
A sample consisting of 3.0 mol of ideal gas molecules at 200K at 2.00 atm is compressed reversibly and adiabatically until the temperature reaches 250K.
A chemist wants to make 4.5L of a 0.340M CaCl2 solution.What mass of CaCl2 (in g ) should the chemist use?
a solution is prepared by adding 50.0ml of 0.050m HBr to 150.0ml of 0.10m HI .calculate the concentrations of all species in this solution HBr and HI are both considered strong aicds ?
Consider the reaction below. N2(g) + O2(g) ? 2 NO(g) Part A: How many moles of NO are obtained when 0.032 mol of N2 is completely reacted?
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