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According to TNS Intersearch, 69% of wireless web users use it primarily for receiving and sending e-mail. Suppose that three wireless web users are selected at random. What is the probability that all of them use it primarily for e-mail?
Ammonium carbamate (NH2COONH4) is found in the blood and urine of mammals. At a temperature of 424 K, Kc = 0.080 for the following equilibrium:
What is the numerical value of the rate constant and what are the units? and Calculate the rate of this reaction when the initial concentrations of OCl- and I- are 7.6 x10-3 M and 9.6 x 10-3M respectively.
if 7.0 moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end?
If the cuvettes are not wiped clean in an experiment, fingerprint smudges may be present during analysis. Explain how this error would affect the absorbance readings for blue dye in the analysis
Lead (II) nitrate and ammonium iodide react to form lead (II) iodide and ammonium nitrate according to the reaction. Pb (NO3)2 (aq) + 2NH4i (aq) --> Pbi2 (s) + 2NH4NO3(aq)
If 18.6 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution, what is the molar concentration of the ammonia?
If (initially) 0.22 mol of Br2 and 0.22 mol Cl2 are introduced into a 1.0 L container at 400. K, what will be the equilibrium concentration of BrCl? Assume the initial product concentration is zero.
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
consider the titration of 100.0 ml of 0.200 m acetic acid ka 1.8 10-5 by 0.100 m koh. calculate the ph of the
What is the purpose of decalin when heating an alcohol with strong acid to produce an alkene
what the information about newly discovered virus that we should know before we could devolope an effective drug therapy
An alkane with a molecular formula of c18h18 reacts with chlorine in the presence of light and heat to give a single monochloride c8h17cl. What is the most resonalble structure for the starting alkane? and why?
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