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Why silicon tetrachloride reacts with water to produce SiO2 but carbon tetrachloride does not react with water? 1. SiCl4 can act as a Lewis base. 2. SiCl4 can act as a Lewis acid. 3. 1 and 4 only. 4. 2 and 3 only. 5. CCl4 can act as a Lewis acid. 6. None of these 7. ClCl4 can act as a Lewis base.
A piece of metal with a mass of 146 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 35 mL. What is the density of the metal?
How many moles of CaF2 will dissolve in 3.0 liters of 0.150 M NaF solution? (Ksp for CaF2 = 4.0 x 10-11).
A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.49. What was the concentration of the solution? The Ka of lactic acid is 1.4 10-4.
Starting with the standard free energies of formation from the following table, calculate the values of delta G and E cell of the following reactions.
Determine how many moles of each product would form and Considering the given equation
determine the minimum length of a surface crack that will lead to fracture. Assume a value of 0.96 for Y.
Indicate which layer( aqueous or organic) each component in the reaction will mainly reside in ( for both products and reactants ) for all the following three reactions: (1)Show the reaction of 1-naphthylamine hydrochloride with sodium hydroxide.
Why do primary alkyl halides typically undergo Sn2 substitution reactions more rapidly than do secondary or teritary alkyl halides?
reacted with 0.0040 mol NaOH (very strong base) and then brought up to a volume of 1.0 liter with water. What is the pH of the resulting solution?
The specific rotation of Compound X is +15.2o. A mixture of Compound X and its enantiomer are placed in the polarimeter and the observed rotation is -5.1o. Which enantiomer is in excess? (+ or -) Calculate the enantiomeric excess.
Calculate the fraction of methyl isonitrile molecules that have an energy of 160.0 kJ or greater at 510k and 514 k. What is the ratio of the fraction at 514 k to that at 510 k.
If one collects the first liter of gas that moves from the original room into the evacuated room, approximately what would you expect its composition to be? Would it be the same as regular air?
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