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Without belaboring the fact, food is just a mixture of chemicals. The pleasant fruity odor from some foods is often due to the presence of a class of organic compounds called esters. For example, ethyl butyrate gives the scent of pineapple and octyl acetate gives the smell of oranges.
One of the nuclides in spent nuclear fuel is U-253, an alpha emitter with a half life of 703 million years. How long will it take for the amount U-235 to reach 14.0 percent of its initial amount? T=?
Determine the concentration of the sulphuric acid (H2SO4) solution If It takes 58 mL of 0.124 M potassium hydroxide(KOH) to neutralize 41.5 mL of sulphuric acid( H2SO4) solution.? Express your answers in units of moles/liter
4 HNO3(aq) + Cu(s) => Cu(NO3)2(aq) + 2 H2O(l) + 2 NO2(g) Considering which elements are being oxidized and reduced, determine
What wavelength of light would you report in units of nm, if the light had a wavelength of 7.60 x 10-10 m?
what practical and creative decision must a scientist make? What important criteria must this choice fulfill?
A sample of gas occupies a volume of 115mL at a pressure of 720. mmHg. Calculate its volume at STP.
what type of phase change does a substance undergo at .750atm and 30 degrees celsius
with 0.1000M NaOH solution. if 22.00ml of the NaOH solution were required to neutralize completely 10.00ml of the malonic acid solution, what is the molarity of the malonic acid solution
Given the reaction by the equation Mg + 2HCL yeilds H2 + MgCl2, determine to two decimal places the molar masses of all substances involved.
Discuss the common-ion effect by comparing the solubility of CaCO3 in 3.0 x 10^2 mL of water and in the presence of 0.015 mol of Ca(NO3)2.
The decomposition of hydrogen peroxid is second order in H2O2. If 50 grams of 30% hydrogen peroxide is placed in a beaker within a sealed environment, what will be the concentration of hydrogen peroxide
If hydrogen were used as a fuel, it could be burned according to the following reaction: Use average bond energies to calculate for this reaction
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