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What is the central atom for CO2, how many bonds are formed, is it polar or nonpolar, what's the direction of electronegativity?
An ice bag containing 212g of ice at 0 °C was used to treat sore muscles. When the bag was removed, the ice had melted and the liquid water had a temperature of 32.5°C.How many kilojoules of heat were absorbed?
When 0.052 mol of aluminum sulfate are dis- solved in enough water to make 179 milliliters of solution, what is the molar concentration of aluminum ions?
A pot is made out of iron (mass=11 kg and SH capacity of .4498 J/g degree celcius) and you have 1 liter of pure water, starting with H20 at exactly 15 celcius and wanting to get it to boik
what is the name of the glassware to which the separatory funnel, boiling flask, and still head was attached during distillation?
Demonstrate how an addition reaction of H3O+ to an alkene is the reverse of a catalyzed E1 reaction of an alcohol.
It is assumed that the relative standarddeviation of the method is sr ? s = 4 ppt forcarbon and 6 ppt for hydrogen. The means of the reported resultsare 68.5% C and 4.88% H. At the 95% confidence level, is there anyindication of systematic error i..
The decomposition of SO3 to SO2 and O2 , 24 Kcal/mole of heat is absorbed by the system.
How many atoms are present in a 75.0cm^3 sample of plumber's solder, a lead-tin alloy containing 67%Pb by mass and having a density of 9.4g/ml
calculate the molecular mass of the nonionic solutes 64.3 grams of solute in 3.90 x 102 grams of water raises the
The mass spectrum of an organic compound shows the relative abundances of M to be 58.07% and M 1 to be 8.165%. Assuming the peaks are caused by 12C and 13C isotopes
What is the solubility of nitrogen in the divers blood at the bottom of the dive? b: If you assume the mass of the divers blood is 5.0 kg, how many moles of nitrogen comes out of the divers blood when he comes to the surface?
When 36.5 mL of 0.585 M H2SO4 is added to 36.5 mL of 1.17 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate pH of this reaction.
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