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Present-day plant life has a carbon-14 dacay rate of 16 disintegrations per minute per gram of carbon. If a contemporary wooden chair were somehow preserved to for the next 3,900 years, what C-14 dacay rate should be expected from the wood used to make the chair? (t1/2 = 5730)
How many moles of NaOH were required to neutralize the amount of KHP in Part b. d) What is the concentration of the NaOH solution?
What is the pressure in millimeters of mercury of 0.0110 mol of helium gas with a volume of 208 mL at a temperature of 35 degrees C?
Solid NaI is slowly added to a solution that is 0.0091 M Cu+ and 0.0077 M Ag+. Calculate the concentration of Ag+ when CuI
Calculate the relative proportions of two conformers A and B in a compound, assuming that an energy of 15.5 kj/mol is required to go from
What organic product(s) is formed when 1-methylcyclopentanol is heated in the presence of an acid catalyst?
you decide to use methyle red indicator instead of universal indicator for preparation of your pH color standard what effect have on your data?
Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 276 units was obtained for the intensity of the 671 nm red emission line
What is the concentration of the vinegar in weight percent? (Assume a density of 1.030 g/mL.) If the pH of the vinegar was 3.44, what value is obtained for the Ka of acetic acid?
A zero-order reaction has a constant rate of 3.20×10-4 . If after 60.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
In the reaction BaCO3 + 2HNO3 -> Ba(NO3)2 +CO2 + H2O, what mass of Ba(NO3)2 can be formed by combining 55 g BaCO3 and 26 g HNO3?
Borane forms complexes with sulfides and amines. Draw a suitable structure to represent the complex formed between BH3 and dimethyl sulfide
Calculate the volume occupied by 1.00 mol N2 using the van der Waals equation in the form of a virial expansion at (a) its critical temperature, (b) its Boyle temperature, and (c) its inversion temperature
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