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1. When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of Pb(OH)42-(aq) will be: BrO3-(aq) + Pb(OH)42-(aq) --> Br-(aq) + PbO2(s)
2. Balance the following reaction in acidic aqueous solution. What is the coefficient of H2O(l)?Cu(s) + MnO4-(aq) ---> Cu2+(aq) + Mn2+(aq)
Bomb Calorimeter, gross heat of combustion, In the following experiment 1.1651g of benzoic acid (6318 cal/gm) produced a net corrected temperature rise of 3.047C, also 8 cm (2.3 cal/cm) of fuse wire were consumed in the firing.
Each was extracted with three 5-mL aliquots of CCl4 containing an excess of 8-hydroxyquinoline. The extracts were diluted to 25 mL and their fluorescence was measured. What is the concentration of the zinc in the unknown solution Volume of Zn sta..
Using structures and your own words, explain why acetic acid (CH3COOH; you can look up the structure of the carboxylic acid if you're unsure) is more acidic than ethanol (CH3CH2OH)
Calculate the mass percent (m/m) for the solute in each of the following solutions: Express the answer using 2 sig figures.
If an artificial heart is capable of pumping at least 57,000,000 pints of blood before failure, how long, in years, will it probably last in a patient whose average heart rate is 72 beats per minute and an average stroke volume (the amount of bloo..
One way to do this is to mix oxygen with helium. Assume a mixture of 10.% oxygen and 90.% helium. Assuming Henry's law behavior, calculate the levels of oxygen and helium in the blood of a diver at 100 m. Assume T = 298 K.
a balloon filled with helium gas at 1.00 atm occupies 15.6 L. What volume would the balloon occupy in the upper atmosphere, at a pressure of .15 atm
A compound is 80.0% carbon and 20.0% hydrogen by mass. assume a 100 gram sample of this compound. How many moles of each element are in this sample
A student carried out several different determinations of the density of the metal ruthenium. The students results were as follows
What are the products of a double displacement reaction involving sodium hydroxide and hydrochloric acid
Assume an arteriole has a radius 0.005 cm and a length of 0.05cm. Assume the pressure drop across thei aretiole is 50 mm Hg. Calculate the flow Q in cubic meters per second through this arteriole. Assume viscosity of blood is 0.04 P
Why does an atomic emission measurement of concentration have more error associated with it than an atomic absorption
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