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Diagram the path that light travels through a spectrophotometer. Utilize flow chart format. Comprise white light source, measuring phototube, sample compartment and monochrometer.
translate the following word equations into balanced chemical equations and explain how the equations represent what
as a result of a chemical spill benzene is evaporating at the rate of 1 gram per minute into a room that is 6 m 6 m 3
Calculate the molar solubility of CaCO3 in .050 M CaCl2. The Ksp for CaCO3 is 3.8*10^-9. Assume that Co3 does not react appreciably with water. help please?
Lightning from thunderstorms strike the Earth 100 times each second. 2400 deaths have been caused by lightning strikes over the past 25 years. How many strikes occur before a death occurs? Please explain? It says that the answer is 32,850,000 but ..
Calculate the quantity indicated for each of the following electrolyses. Enter scientific notation as 1.23E4. (a) [Cu2+] remaining in 5.70E2 mL of a solution that was originally 0.412 M CuSO4, after passage of 3.50 A for 289 s and the deposition o..
Determine the concentration of the total available acid of the apple juice express your answer in moles/L?
What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl. Kb of CH3NH2 = 3.7 10-4.
when 9 drops of 0.014 m na2co3aq are added to 25 ml of 0.003 magno3aq. find the qspnbsp if the solubility product of
A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 60.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 235.0 mL of solution. What is the molarity of the ethanol in this solution?
Naphthalene, C10H8, melts at 80.0 C. suppose the vapor pressure of the liquid is 10torr at 85.8 C and 40torr at 119.3 C and that the vapor pressure of the solid is 1torr at 52.6 C, Compute the vapor pressure at the Tmp.
an environmental chemist needs a carbonate buffer of ph 10.00 to study the effects of acid rain on limestonerich soils.
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