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dinitrogen pentaoxide has 8.24 x10^20 molcules, how many gram of dinitrogen pentaoxide prsent?
Calculate the number of grams of alcohol present in 1.00 L of 78 proof gin. The density of ethanol is 0.798 g/mL.
It takes 45.0 to raise the temperature of an 8.00 piece of unknown metal from 13.0 to 24.5. What is the specific heat for the metal.
In the acid-base reaction between Sr(OH)2 and HNO3, 0.75 L of 0.85 M Sr(NO3)2 is formed upon the reaction of 0.515 L of HNO3 solution and excess Sr(OH)2.
To what volume should you dilute 150 mL of an 8.00 M CuCl_2 solution so that 55.0 mL of the diluted solution contains 5.9 g CuCl_2?
Draw the major organic product when 2-chloro-3-dimethylpentane reacts with CH3CH2OH and isopropyl alcohol.
A solution is made by mixing 15.5 g of NaOH and 73.0 mL of 0.150 M HNO3. Calculate the concentration of OH- ion remaining in solution.
Calculate the initial effusion rate. If this rate continued how much time would pass until the pressure dropped to 0.90 bar? (actually the rate changes with pressure- indicated why using the equations). assume values for nitrogen
Select the most important resonance structure for this species based on the formal charges on the atoms of the three resonance structures you have drawn. Now select the statement from the multiple choices which is true about this most important re..
How many moles of ammonia are required to react completely with 146 L of oxygen gas according to the following reaction at 0 C and 1 atm
What is the kinetic energy in joules of this baseball when it is thrown by a major-league pitcher at 94.0mph?
Assume further that as the normal fruit flies die off quickly, a population of the resistant flies increases geometrically (that is, 1, 2, 4, 8 ...) If a new generation occurs every 62 days, in how many days will the fruit fly population be restor..
How many resonance forms are required to represent the bicarbonate ion HOCO21
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