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The first ionization energy for rubidium is +403.0KJ/mol. How much energy would be required to convert 17.1g of gaseous rubidium to its gaseous +1 monatomic ion at constant temperature?
A. 185kJB.68.9kJC. 80.6kJD. 34.5kJE. 40.4kJ
at constant volume, the initial pressure of a substance is 0.63 atm and the initial temperature is 283 k.calculate the pressure of the substance at 295 k.
how many cans of Mountain Lightning would an individual have to drink to die from a tartrazine overdose If the LD50 of tartrazine in humans is supposed to be 12,750 mg/kg (as it is for mice) and the average human weighs 70 kilograms,?
Explain why ionization energy increases when successive eletrons are removed from a given shell
Draw 2 resonance structures for the anion -CH2CHO formed from ethanol. Show all valence electrons as bonds or lone pairs and indicate any formal charges.
what adjustment should be made to the mobile phase to bring the compound off sooner? why?
A gas occupies a volume of 925mL at 30 degrees celcius and 1.2atm. What volume will it occupy at STP?
The following reaction is used in the haber bosch process for the synthesis of ammonia N2(g)+3H2(g)->2NH3 If the initial rate of appearance of NH3 is 0.625Ms^-1 calculate the initial rate of disappearance (in Ms^-1) of H2
Calculate the ph at the equivalence point for the titration of 1.0 m ethylamine by 1.0 m perchloric acid
Describe Newman projection. Experiments have shown that for 1,2-dichloroethane, ClCH2CH2Cl, in carbon tetrachloride solution at 25C, 70% of the molecules are in the anti and 30% are in the gauche conformation
a 10 ml sample of a solution of pbclo32 was diluted with water to 170 ml. a 100 ml sample of the dilute solution was
If the pressure of 50.0 mL of oxygen gas at 100 °C increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume temperature remains constant.
Fractional distillation was applied to separate a mixture of water and methanol. The same method was also applied to separate a mixture of carbon tetrachloride and toluene, using the same fractionating apparatus
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