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Calculate the pH of 100 mL of .30 M NH3 before and after the addition of 4.0 g of NH4NO3 and account for the change. assume the volume remains constant
Provide the mechanism for the preparation of p-nitrobenzene diazonium cation from p-nitroaniline and nitrous acid, HNO2.
What is the ion, charge on the ion and hybrid orbitals used by Sn
A 29.0-g sample of water at 260. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Crystalline solids are well-ordered arrays of atoms or molecules. Crystalline solids may be metallic solids, molecular solids, or ionic solids.
To estimate the percentage of all-trans-lycopene present in the original tomato paste, should you average the percentages obtaned by all the members of your team? If not, what should you do, and why?
a sample consisting of various gases contains 3.8times10-6 mole fraction of radon. this gas at a total pressure of 31
if 0.75 moles of cao was reacted in the above reaction and all the heat was used to heat an amount of lead from 20.5 c
Calculate the percent composition of each element (H, C, N, O) in ammonium carbonate and acetic acid
A ball thrown at an initial angle of 37 and initial velocity of 23.0m/s reaches a maximum height. With what initial speed must a ball be thrown straight up tp reach the same maximum heaight
A portable CD player that draws 175 milliamperes of current is powered by Ni-Cd rechargable batteries. Compute the mass of NiO2 consumed when a disk is played for 115 minutes.
The high resolution mass of a compound was measured to be 187.0878, Determine a likely molecular formula for this compound and explain how you arrived
The rate at which a compound travels through a particular GC system depends on numerous factors. List the five factors and number them one through five.
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