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A sample which is having 3.87 mg of ascorbic acid gives.58 mg H2O and 5.80mg CO2 on combustion. Determine the percentage composition of this compound? When the ascorbic acid contains only C,
Determine the melting point of ice under a pressure of 10MPa. Suppose that the density of ice under these conditions is approximately 0.915 g cm-3 and that liquid water is 0.998 g cm-3
Determine pelidisi (to nearest whole number) of the person whose weight is given as 51.145 g and whose sitting height is given 69.5 cm. is this individual undernourished or overfed?
Determine the energy of the lowest nuclear spin state in a magnetic field of the 8.50 T. 33S has a nuclear spin of 3/2 and a nuclear g-factor of 0.4289.
Find out the resonance frequency for deuterium in this spectrometer in MHz? Explain which of the following systems will have an energy level separation that is largest (a) A proton in a 400 MHz NMR
If he is 39 ft below the surface of the water when atmospheric pressure at the surface is 0.97 atm? Determine the pressure in atmospheres on the body of a diver.
Discuss how high in the meters must a column of water be to exert a pressure equal to that of a 760-mm column of mercury? When the density of water is 1.0 g/mL, where as that of mercury is 13.6g/mL
Assuming rapid reaction rate, calculate the minimum PH necessary to reduce these metal concentrations to acceptable levels. Is this Ph consistent with what you might expect of the LAKE.
Determine the pH of a solution that is prepared by mixing the 1.35g of sodium nitrite, NaNO2, with 100.0 mL of 0.095 M HCL. Ka for HNO2=6.0*10-4.
Determine all zeros and asymptotes of g(x). Draw the graph of y = g(x), showing long-run and short-run behavior of function.
Determine the molarity of the dye in a solution with an absorbance of the 0.118 at 560nm? A student measures a certain blue dye to be 24.16M-1 at560nm.
Explain how would a student make 500.0ml of a 0.07000M solution of iron (III) use a stock solution that is 0.2550 M in iron (III)? Discuss how this would be done.
A sample which is having 0.213 mol of a mixture of carbon dioxide and nitrogen with a total pressure of 860. torr is exposed to solid the calcium oxide which reacts with the carbon dioxide to produc
The manufacturing company makes 3 types of computer games which are shipped to 2 warehouses. Determine BA and express what every entry of product represents.
Determine the amount in mL of ethanol that must be added to one liter or water to achieve a solution with this composition and estimate the Vmix The densities of pure water and ethanol at this tempe
Estimate the ratio of the concentrations of the acetylsalicylate ion to acetylsalicylic acid that has a pH adjusted to the 4.13 by the use of strong base or strong acid. Aspirin is a product of the
What will the final temperature of the mixture know the specific heat of water is 4.18 J/go C if 100 g of liquid water at the 100 o C and 200 g of water at 20 o C are
Strontium cyanide has both covalent and ionic bonds. Outline the Lewis structure for this chemical. Is this molecule polar or non-polar?
Estimate the boiling point of a solution which is obtained by dissolving the 1 mole of a solute in the 1 kilogram of water. First use the equation relating the boiling point depression to t
At 5:00 am there are 400 bacteria in the dish. At noon there are 1400 bacteria in dish. At this rate how many bacteria must one expect to determine in the dish at midnight?
Discuss is the potassium hydroxide used in this experiment a catalyst or a reagent? Explain by showing the balanced reaction equation.
Explain why the number of GC peaks observed for the alkenes product in this experiment is smaller than the number of isomeric alkenes that are produced in this reaction
The bicycle has the front wheel with the diameter of 24cm and the backwheel with the diameter of 60cm. Through what angle in radians front wheel turn if back wheel turns through 12rad?
The force of 623 lbs. is needed to pull the boat up the ramping clined at 22.0 degrees with horizontal. How much does the boat weigh?
Determine value for x when y=4. Compute value fory when x=1/2. Compute equation for quadratic relationship which has vertex(-4,6) and has point(5,-8).