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You have a 12 volt lead storage battery in your car (you can find the equations for the redox reactions in your text book). If you run two 45 watt headlights for 2.0 hours using your battery as the energy source, how many grams of lead sulfate will be produced in the battery?
how much energy is required to heat an iron nail with a mass of 7g from 25 degrees celcius until it becomes red hot at
Which of the following aqueous solutions produces the largest concentration of toal ions and what is the total concentration of ions. A) 1.5 m sodium sulfate B) 1.5 m magnesium sulfate C) 2.0 m lithium perchlorate D) 1.0 m magnesium phosphate
What is the minimium wavelength of light necessary to ionize an atom of sodium? what is the minimum wavelength of light necessary to ionize a mole of sodium atoms?
A radioactive sample contains 2.50g of an isotope with a half-life of 3.8 days. How much of the isotope in grams will remain after 14.2 days
a chemist wishing to do an experiment requiring 47ca half-life 4.5 days needs 5.0 mg of the nuclide. what mass of
Use the Rydberg equation to calculate the wavelength (in Å) of the photon absorbed when a hydrogen atom undergoes a transition from n = 1 to n = 5.
Kc is 1.67x10^20 at 25*c for the formation of iron(III) oxalate complex ion: Fe^3+(aq)=3C2O4^2-(aq) >>>[Fe(C2O4)3]^3-(aq) If 0.0200 M Fe3+ is initially mixed with 1.00 M oxalate ion, what is the concentration of Fe3+ ion at equilibrium? Please sho..
Find the pH during the titration of 20.00 mL of 0.1000 M butanoic acid, CH3CH2CH2COOH (Ka = 1.54 x 10^-5), with 0.10 M NaOH solution after the following additions of titrant. a.) 15.00 mL b.) 20.90 mL c.) 27.00 mL
According to VSEPR theory, if there are five electron domains in the valence shell of an atom, what will be the expected electron domain geometry.
Calculate the pH during the titration of 20.00 mL of 0.1000 M ammonia NH3(aq), with 0.1000 M HCl after 20.30 mL of the acid have been added. Kb of ammonia = 1.8 x 10-5.
2 NO(g) +Cl2->2NOCL(g) the observed rate law is Rate= K(NO)^2(Cl2). What is the reaction order with respect to nitrohen monoxide with respect to Cl2? Wht id the overall order
A beaker has a mass of 225.08g. When a liquid is added to the beaker, the combined mass is 238.254g. What is the mass in grams of the liquid
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