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Problem- A wooden artifact from a Chinese temple has a 14C activity of 30.7 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. From the half-life for 14C decay, 5715 yr, determine the age of the artifact. Years
Your answer must be supported by illustrations, Please answer with work shown to receive points
How many milliliters of a 0.150 M sucrose solution will be needed to perform an experiment in which 36.69 g of sucrose is needed
how does the hammond postulate explaina. the greater selectivity for bromination vs. chlorination of an alkane?b. the
For each reaction, use the solubility rules as well the equations in the background information to predict if there is a reaction, If there is no reaction indicate so by writting NR under predictions, write gas for gas formation and PPT for precip..
a 20-g mass of argon occupies 15.0 l at a pressure of 25 kpa . find the volume of the argon when the pressure is
Explain what is the mechanism for the oxidation of 2-methylcyclohexanol to 2-methylcyclohexanone with the Jones reagent
which of the following would not be a suitable solvent for a grignard reaction and why? hexane methanol dimethyl ether
A strip of electrolytically pure copper weighing 3.178 gram is strongly heated in a stream of oxygen until it is all converted to a black oxide. The resultant black powder weighs 3.978 g. What is the formula of the oxide
If the temperature required for this process is 1600°C, what observations would you make considering the fact that the reaction occurs in biological processes
The origional volume before CH3N2CH3(g) begins to decompose is 10.0 L. What is the volume of the cylinder at equilibrium
Calculate the percent ionization of nitrous acid in a solution that is 0.230 M in nitrous acid (HNO2) and 0.270 M in potassium nitrite (KNO2).
Problem- Part 1) The Ka for hypoclourous acid, HOCl, is 2.8 x 10-8 at 25 degrees C. What is the value of pKbase? Write the equation for the ionization of HOCl in water.
The reaction of 2.5g of Al with 2.5g oxygen (actually) produces 3.5g of Al oxide. Calculate the % yield of aluminium oxide.
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