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The compound As2I4 is synthesized by reaction of arsenic metal with arsenic triiodide. If a solid cubic block of arsenic (d 5.72 g/cm3) that is 3.00 cm on edge is allowed to react with 1.01 1024 molecules of arsenic triiodide, what mass of As2I4 can be prepared? If the percent yield of As2I4 was 75.6%, what mass of As2I4 was actually isolated?
If 400. mL of NO at STP is reacted with 500. mL of O2 at STP, calculate the partial presure of NO2 after the reaction goes to completion. Assume constant volume.
what minor product(s) might be expected (please draw the full reaction)? Give the detailed reaction mechanism leading to the final product (major).
How many grams of Na3PO4 will be needed to produce 350ml of a solution that has a concentration of Na+ ions of 0.900.
a student begins with 5.00 mL of acetic anhydride and 2.08 g of salicylic acid. Once the reaction is complete, the student collects 2.01 g of aspirin
During the reaction A+B to C, reagant B was held in excess at a concentration of 0.150 M. The order of B was 1. Next, by plotting collected data as ln [A] vs. time, a straight line was made with slope= -0.3045
A 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Upon cooling, the camphor freezes at 157.7°C. Calculate the molar mass of the unknown compound.
calculate the pH of solution formed by mixing 150 mL of 0.10M HC7H5O2 with 100 mL of 0.30M NaC7H5O2. The Ka for HC7H5O2 is 6.5 E -5
A 11.7 mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
How many mL of 0.250 M NaOH are needed to completely saponify 240. g of of glyceryl trioleate (triolein)?
The pressure in an engine cylinder increases from 7.6 atm to 13 atm as the gas is compressed from 0.50 L to 0.10 L. What is the expected cylinder temperature if the gas was initially 15°C?
Construct the lewis structure model for the ionic compound potassium chloride using the following steps.
We prepare a buffer by adding 0.4640 mol HNO3 to 0.5528 L of a solution containing 2.061 M trimethylamine [(CH3)3N, Kb = 6.500x10-5]. What is the pH of this buffer
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