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Triethyloxonium Tetrafluoroborate, (CH3CH2)3O+ BF4 - is a solid with melting point 91-92 degrees Celsius. Show how this reagent can transfer an ethyl group to a nucleophile (Nuc:-) in an SN2 reaction. What is the leaving group? Why might this reagent be preferred to an ethyl halide?
How would the following experimental errors change the calculation of the number of mg of ascorbic acid in fresh orange juice, student neglected to filter the juice
if a 2.743g sample of MgSO4 7H2O were heated strongly, what would be the expected mass of the cooled dehydrated salt? (use M=246.471g mol-1 as the molar mass of MgSO4 7H2O.
A 129-mL portion of that solution is diluted by adding 121 mL of water. What is the final concentration? Assume the volumes are additive.
Express the molar concentration numerically using two significant figures. What is the final concentration of D at equilibrium if the initial concentrations of A = 1.00M and B= 2.00M
How many grams of AgNO3 must be added to 83.0 g of water to make a 2.62 m aqueous solution of AgNO3.
How many moles of HF (Ka = 6.8 10-4) must be present in 0.165 L to form a solution with a pH of 2.25?
Methane reacts with oxygen to form carbon dioxide and water as shown:. determine how much methane must have reacted If 72 grams of water is formed,?
Compound Y has a solubility of 2.0 g/100 mL in water and 20.0 g/100 mL in ether. What weight of compound Y would be removed from a solution of 1.8 g of Y in 100 mL of water by a single extraction with 100 mL of ether?
Consider a container sealed with a small opening. A mixture of several gases are added to the container. Assuming the gases do not react, indicate the order that the gases escape out of the container
How many grams of sulfur (S) are needed to react completely with 355g of mercury (Hg) to form HgS?
An equilibrium mixture contains .870 mol I2, and .290 mol H2 in a 1.00 L flask. I found the equilibruim constant to be .172 which is correct.
The heat capacity of a bomb calorimeter is found to be 5.68 kJ/oC. When a 1.652 g sample of glucose is burned in the calorimeter, the temperature of the calorimeter increases from 24.56 oC to 29.10 oC. Calculate the heat of combustion of glucose.
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