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If a solid is not completely submerged in the water. Will this technique error increase, decrease, or have no effect on the reported density of the solid.? Explain
A particular coal contains 2.55% sulfur by mass. When the coal is burned, it produces {\rm{SO}}_2 emissions which combine with rainwater to produce sulfuric acid.
When the following equation is balanced using the smallest possible integers, what is the number in front of the underlined substance?
What is the mechanism for the trans-esterification reaction of acetylsalicylic acid and methanol into methyl salicylate
Bottled propane is used in areas away from natural gas pipelines for cooking and heating, and is also the source of heat in most gas barbecue grills. Propane burns in oxygen according to the following balanced chemical equation.
Assume that a gold atom is shaped like a sphere. An atom of gold has a radius of 156 pm and a mass of 197 amu. Determine the density of a single gold atom in units of g/cm3. (1 amu = 1.66 x 10-24g).
Your friend brings you a 1.50 M sample of HONH3Cl and wants yo know the pH. You politely ask for the Ka of the acid and she responds that she only knows that the Kb for HONH2 = 3.0 x 10^-6
The work function for metallic rubidium is 2.09eV. Calculate the kinetic energy and the speed of electrons ejected by light with wavelength of (a) 650 nmand (b) 195nm.
Write a proposed procedure in chart format to determine the identity of the following aqueous solutions: HCl, Na2C2O4, Al(NO3)3, AgNO3, Mn(NO3)2, ZnCl2, H2O2, NH4Cl, Ba(NO3)2, Na2CO3, NA2S2O3.
How much heat (in kJ) is evolved in converting 1.20 mol of steam at 134.0°C to ice at -55.0°C.
A 1.043g vitamin C tablet is crushed, treated, and diluted to 100.00mL in a volumetric flask with deionized water. Three 5.00mL samples of this solution are titrated with DCP that had a standardized concentration of 9.93x10-4M
A metal crystallizes in a body-centered unit cell with an edge length of 2.00 * 10^2 pm. Assume the atoms in the cell touch along the cube diagonal. The percentage of empty volume in the unit cell will be
What information is obtained from analyzing the blank? Is this sample 100% elution solvent?
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