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Write the balanced equation for the reaction of aqueous Pb(ClO3)2 with aqueous NaI. Include phases.
What is the density of Ar gas (molar mass, 39.95 g mol-1) at 21.2oC and 1.10E2 kPa? Give your answer in grams per litre (g L-1), accurate to three significant figures
A gas undergoes a process that leads to a change in internal energy of 4.5 J, while simultaneously work in the amount of 17.6 J is performed by the gas at constant pressure. Calculate the change in enthalpy of this process.
If 156 mL of wet H2 is collected over water at 24C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
determined the acid ionization constant (Ka) for the acid to be: Ka = 2.53 X 10-6. What is the weak acid and what is Kb for the conjugate base of the weak acid?
how many moles of N atoms are there in .882 moles of (NH2)2CO?
Formulate a reaction mechanism to show how, with excess acetic anhydride ,2-methyl benzisoxazinone might be formed.(Hint: acetylation of the amino group should occur first). How many moles of acetic anhydride are consumed in this reaction?
Calculate the volume of ammonia required to bring the pH to 3.00 and to 8.00. Kb (NH3) = 1.8 x 10^-5.
At 800K the equlibrium constant, Kp for the following reaction is 3.2 *10^-7. 2H2S(g) 2H2(g)+S2(g). A reaction vessel at 800 K initially contains 3.00 atm of H2S. If the reaction is allowed to equilibrate, what is the equlibrium pressure of S2
What common mono-positive ions will coprecipitate with barium sulfate in the determination of soluble sulfate
Select all of the correct statements about reaction rates from the choices below. The lower the rate of a reaction the longer it takes to reach completion.
Calculate the change in internal energy of the following system: a balloon is cooled by removing 0.657 kJ of heat. It shrinks on cooling, and the atmosphere does 384J work on the balloon.
If the specific heat of the ball bearing is .474 J/g times degress C, calculate the final temperature of the water. Assume the calorimeter to have neglible heat capacity.
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