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A projectile is launched with an initial velocity of 300m/s at 55 degrees above the horizontal. What is the straight line distance from where the projectile was launched to where it was hit? What is the maximum height?
How many moles of H3O+ or OH - must you add per liter of HA solution to adjust its pH from 9.80 to 8.91? Assume negligible volume change.
The solubility of calcium arsenate (Ca3(AsO4)2, molar mass = 398.078 g) in water is measured to be 0.050 g/L. What is Ksp for this salt
A sample of carbon dioxide has a volume of 575 mL at 752 torr and 22°C. What is the mass of carbon dioxide in this sample
2C4H10 + 13O2 → 8CO2 + 10H2O The equation shows the combustion of butane (C4H10). How many moles of water can be produced by 12.5 moles of C4H10 with excess oxygen.
Determine the percent yield of barium sulfate If the actual yield = 0.456 grams?
Suppose 50 mL of 0.020 M Hydhrochloric acid solution was mixed to 50 mL of 0.20 M acetic acid solution (Ka of acetic acid, CH3COOH, = 1.8 x 10-5). Determine the approximate pH of the mixture.
how does the strngth of the attraction between water molecules and sodium and chloride ions compare with the strength
Consider the reaction: 2SO2(g)+O2(g)?2SO3(g) What changes will occur in the concentration of SO2,O2, and SO3 at equilibrium if we were to: a. increase temperature b. increase pressure c. increase SO2 d. add a catalyst e. add helium at constant pre..
At what distance will the rate of energy transfer be equal to the excited-state decay rate for isolated CFP, equal to the inverse of the excited-state lifetime?
Calculate the volume of dry CO2 produced at body temperature (37 degree C) and 0.990 atm when 24.0 g of glucose is consumed in this reaction.
question technetium-99m gamma emitter t12 6.02 hr is widely used for diagnosis in medicine. a sample prepared in the
Compare and contrast the major products of dehydrohalogenation of 2-chloro-4-methylpentane with (a) sodium ethoxide in ethanol and (b) potassium tert-butoxide in 2-methyl-2-propanol (tert-butyl alcohol).
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