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Pretend you run a reaction and your theoretical yield is 5.25 grams, but you isolate 5.50 grams. What is the most likely reason for the excess weight?
a) the balance is brokenb) your product contains some type of impurityc) you are such a good chemist that you made extra materiald) a different reaction occurred than you were expecting
Sketch a molecule of Pbr3Cl2 in which the chlorines are in axial position position. Sketch another molecules of Pbr3Cl2 in which the chlorines are equatorials positions.
In the neutralization reaction between sulfuric acid and potassium hydroxide, how much potassium sulfate can be produced if you have 150.0g of sulfuric acid to begin with.
use the van der waals equation to calculate the pressure of 4.21L CO(g) at 300°C. (a= 1.472 bar L^2mol^-2 and b=0.0395L mol^-1)
Barium imparts a characteristic green color to a flame. The wavelength of this light is 551nm. Determine the energy involved in kj/mol.
Ammonium nitrate is a common ingredient in fertilizers that can also be used to make explosives because it decomposes as follows
calculate the density of the pheromone in grams per liter in a cylindrical air space with a radius of 0.50 mi and a height of 40ft.
Determine the total number of valence electrons in each of the following: a) SBr2; b)NBr3; c) CH3OH; d) NH4^+.
Calculate the mass of sodium hydroxide that must be added to 1.00 L of 1.00 M HC2H3O2 to double the pH of the solution (assume that the added NaOH does not change the volume of the solution)
What velocity must an electron have in order to have a de Broglie wavelength of 1.00 A? What velocity must a proton have in order to have the same de Broglie wavelength
We recently did a lab/demo using the NMR to observe Na ions in sodium complexes in our Inorganic Class. I understand most of the post lab questions, but there are a few that still have me stumped.
When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of Cr(OH)3(s) will be: Cr(OH)3(s) + Cl2O7(aq) --> CrO42-(aq) + ClO2-(aq)
If a single pill contains 0.150 grams of KCN How much HCl in grams would be necessary to consume all of the KCN
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