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Explain what carboxylic acid would be produced if the melodic ester synthesis were carried out with a large excess of melodic ester, one equivalent of 1,5-dibromopentane, and two equivalents of bas
Determine the numbers of hydrogen ions are required and on which side of the equation must they appear?
At the 335 K in the first-order decomposition of dinitrogen pent oxide, assume we start with a 2.50 g sample of N2O5 at 335 K and which is having the 1.50 g remaining after 109 s.
Estimate the change in enthalpy for the Mg-HCl reaction using the standard enthalpies of formation. Hf for HCl (aq) = -167.2 kJ; Hf for the MgCl2(aq) = -791.2 kJ.
Anhydrous, hygroscopic, blue CoCl2 forms red-violetCoCl2 * x H2O on exposure to moist air. Ifthe color change is accompanied by an 83.0 % increase in mass, what is the formula of the hydrate
Estimate the vapor pressure of a 10 molar aqueous solution of glucose (C6H12O6, a nonvolatile molecular solid) at 373K when the vapor pressure of pure water at 373K is 760 torr.
Find mean and standard deviation of statistic p hat, sample proportion who are boys? Use Normal approximation to determine probability which p hat would be less than 0.5.
Determine the half-life of AB at 313K when a first-order chemical reaction AB --> C + D with an activation barrier of the 91.4 kJ has a half-life of 2 hr at 298K.
Find the time required to empty the tank through the hole in the bottom5 cm2 in area when a square tank 4m on a side and 10m high is filled with the water.
Determine the numbers of kilograms (kg) of ice would take to chill a24-bottle case of Anchor porter from 25 c to 0.0 c when the molar heat of fusion for H2O IS 6.01 kj/mole if the heat capacity of
$184.90 is needed to repay the loan of $167.00 in 50 days. Using Banker's Rule (t=exact days/360), find interest rate expressed as the percent and rounded correctly to 2 decimal places used to sett
Illustrates the products you would expect for the reactions of phenyl magnesium bromide with the benzophenone, benzaldehyde and the methyl benzoate. Determine the melting points of these products?
Determine the percentage by weight of sodium cyanide in this aqueous solution at 10 c the solubility of NACN IN water is the 48 grams per 100cc of water if the specific gravity of water is 1.00.
She took a representative 250 mL sample of the water for analysis by the Winkler method. An environmental chemist is concerned about dissolved oxygen levels in a nearby pond.
An airplane is pressurized to 650 mmHg, which is the atmospheric pressure at a ski resort at 13,000ft altitude if air is 21% oxygen; determine the partial pressure of oxygen on the plane?
If Thomlin Company uses the predetermined overhead rate based on machine hours for applying overhead, find that overhead rate?
Determine the maximum concentration of NCS- ion can exist in solution before AgNCS begins to precipitate. Suppose you start to add thiocyanate ions to a solution in which themolarity of the silver
A 25.00 ml portion of 0.100 Ag+ is added to a solution which is having the 0.0010 mole of Cl-. This solution is then titrated with the 0.0500MNCS- to the end point. Determine the volume of NCS- is
A sample which is having 0.1219 g of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 1769 J/°C when the calorimeter contains exactly the 241 g of wate
A mixture which is having 0.3 g of CuCl and Cu (IO3)2 is made. The mixture is 46% Cu(IO3)2 and 54% CuI. At 20 deg C if the solubility of CuI is 0.0072g per 100.0g of water and the solubility of Cu(I
A chemist observed that it would not readily dissolve in HCl, Solid black CuS is exceedingly insoluble, but would react with concentrated HNO3 resulting in a solution containing Cu2+, among other th
Explain which has a higher molarity of K+ ions when an aqueous solution that is 15ppm in KBR or an aqueous solution that is 9ppm in K2CO3
Estimate which of the following statements are false, and correct them. (a) Electromagnetic radiation is incapable of passing through water.
The plane took one hour longer to travel 560 miles on first portion of the flight than it took to fly 480 miles on second portion. If speed was same for each portion, find flying time for second par
Determine the cell voltage of an electrochemical cell that consists of two platinum (inert) electrodes with the 0.100MCrCl3/0.0500 M K2Cr2O7in one compartment and 0.100 M FeCl3/0.0700 MFeCl2 in a