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A student decomposes a 9.317 g sample of a compound containing only nickel and iodine. 1.245 g of nickel are precipitated out through experimental procedures.
The empirical formula of the compound is:
A) NiI2
B) NiI3
C) Ni3I
D) Ni2I
which one of the following molecules has a zero dipole
What is the [H3O+] of a solution that is 0.0100 M in HOCl
The standard entropy of ethane (C2H6, S^0 = 229 J / (mol K) ) is higher than that of ethylene (C2H4, S^0 = 219 J / (mol K) primarily because ethane has _______ accessible ________ states than ethylene at 298 K.
Show the reaction mechanism of the reaction of 3,3-dimethyl-1-butyne with HCl in acidic medium to form 1.3-dichloro-2,3-dimethyl-butane.
The decomposition of KClO3 proceeds spontaneously when it is heated. Do you think that the reverse reaction, the formation of KClO3 from KCl and O3 is likely to be feasible under ordinary conditions
The analytical balance is listed as having an uncertainty of +- 0.0005g. Is the range of weighings collected by you on the empty beaker within this uncertainty. If no, can you define this discrepancy
A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when [Mn2+] is 1.1 M and Ecell = 0.35 V. How about when [Mn2+] is 3.1 M and Ecell = 0.45 V. Calculate the Molarity for both situations.
the photoelectric effect is used today to make light-sensitive detectors when light hits a sample of metal in a sealed
Why are small particulates in the atmosphere dangerous to human beings? They can enter into and lodge in very small crevices of the lungs and cause concentrated abrasive injury They grind the enamel off of teeth.
Analysis with an elaborate instrument indicates that substance A contains two elements. Substance B and substance C react to give a new substance D.
What is the volume of this ideal gas in liters?
a sample of propanec3h8 contains 10.8 moles of carbon atoms. how many total moles of atoms does the sample
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