Books are chosen at random
A bookcase haves 3 statistics books and 5 biology books. If 2 books are chosen at random, the chance that both are statistics books.
a. 3/28
b. 5/14
c. 10/13
d. 3/13
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The indicator used had a p Kind = 3.50. HNO2 is a weak acid with a Ka = 1.9 X 10^-4. A 20.00mL aliquot of a 1.000M solution of HNO2 was titrated with 1.000M NaOH. Determine the numbers of mL of NaOH are essential to reach the end point of th
In second grade class containing 12 girls and 9 boys, 2 students are chosen at random to give out the math papers. What is the probability that both are girls.
Explain why is a plastic beaker instead of a glass beaker used in the experiment of "synthesis and characterization of Tetra phenyl cyclopentanedione"?
Determine the crossed aldol condensation? Describe all possible products from a reaction between 2-methylcyclohexanone and 2-butanone in the presence of sodium hydroxide?
If the concentration of ozone is 4.12 x 1013molecules/cm3, determine the concentration of ozone after 8.32 hours of irradiation. At an altitude of 30 km, the temperature 277 K and the above reaction follows first-order kinetics with a half
Discuss how would you expect a relatively non-polar component to behave when the mobile phase is a non-polar solvent?
A pet supplier has a stock of parakeets of which 10% are blue parakeets. A pet store orders 3 parakeets from this supplier. If the supplier selects the parakeets at random, what is the chance that the pet store gets exactly one blue parakeet?
Determine the importance of determining sodium hypochlorite in bleach or describe the importance of sodium hypochlorite or the importance of iodometeric analysis.
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