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Lewis Structure for a Nitrate Ion (NO3-1). Assign the formal charge for the central atom, Nitrogen. What is that formal charge
If you want to dope GaAs to make an n-type semiconductor with an element to replace Ga, which of the elements below would you pick
that during one such stroke the opposing pressure in the tire was 30.0lb/in2 above the normal atmospheric pressure of 14.7 lb/in2. Calculate the number of joules of work accomplished during each stroke (1 atm= 101.325 J)
This assignment inhibits chemistry Laboratory Questions.
Calculate the molar concentration of ferrocyanide in a solution of 0.031 M ZnSO4 saturated with Zn2Fe(CN)6. ZnSO4 will be completely dissociated into Zn2+ and SO42-
we place an excess ( more than can dissolve) of PbCl2 into 100 ml. of water and find that at equilibrium [Cl]=0.032 M . Calculate kc for the following reaction : PbCl2 = Pb+2Cl
If you have unknown sample which either benzoic acid or 2-naphthol, describe a method to determine the identity of the unknown compund.
From there, how would I find the moles of salicylic acid in aspirin sample (mol) and the mass of salicylic acid in aspirin sample (g), which should help me calculate the percent purity of aspirin and the percent yield of aspirin in sample. Thank y..
55.0 mL of a 1.70 M solution is diluted to a volume of 288 mL. A 144 mL portion of that solution is diluted using 181 mL of water. What is the final concentration?
The concentration of the AlCl3 solution is Blank 1M. AlCl3 + 3AgNO3 ---> 3AgCl + Al(NO3)3 Write answer to three significant figures in decimal form(NOT in scientific notation)
A sample of gas with a mass of 1.80 g occupies a volume of 921 mL at a pressure of 733 torr and a temperature of 24 C. What is the molar mass of the gas?
A hydrogen-filled balloon was ignited and 1.50 gram of hydrogen reacted with 12.0 g of oxygen. How many grams of water vapor were formed?
At 20 degree celcius, how many dissociated H+ ions are there in 167ml of an aqueous solution whose ph is 12.17? and At 25 degree celcius, how many dissociated H+ ion
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