Will this cause your calculated concentrations to be high
Suppose that there is something in your sample that is absorbing at the same wavelength as the material you are looking at. Will your measured %T be too high or too low? Will this cause your calculated concentrations to be too high or too low?
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The rate constant for a certain chemical reaction is 0.00250 L mol-1 s-1 at 25.0 C and 0.0125 L mol-1 s-1 at 50.0 °C. What is the activation energy for the reaction, expressed in kJ mol-1?
Question: A chem 216 student titrated 5.15 g of an unknown weak acid with 0.92M of NaOH. Equivalence point was found to be 52.1 mL. What is the molecular weight of the unknown weak acid?
Lemon juice is a complex aqueous solution that does not freeze in ahome freezer at temperatures as low as -11 °C. At what temperature will the lemon juice freeze if it effective molality is the equivalent of 11.37 m glucose solution?
Calculate the standard free energy change for the following metabolically important enzyme-catalyzed reaction at 25°C andpH 7 using the indicated equilibrium constant: glyceraldehyde 3-phosphate?
A calorimeter, fabricated from 135.0 g of iron metal, thermallyinsulated from its surroundings, contains 173.0 g of water. Both the calorimeter and the water are at an initial temperature of21.25°C.
A bird is flying around the world at a rate of 12.2ft/sec. How many days will it take to complete its journey?(circumference of earth =25,000miles
Calculate the equilibrium constant Ka, for the ionization of formic acid in aqueous solution at 25 degrees celsius. delta G^0=21.3 kJ at 25 degrees celsius
Hard water often contains dissolved and ions. One way to soften water is to add phosphates. The phosphate ion forms insoluble precipitates with calcium and magnesium ions, removing them from solution.
56g of metal carbonate, containing the unknown metal M, was heatedto give the metal oxide and CO2 according to thechemical equation below. The mass of CO2obtainedwas .376g. Determine the molar mass and identity of the metal. MCO3 = MO + CO2
Suppose your bedroom is 18 ft long, 15 ft wide, and the distance from floor to ceiling is 8ft, 6 in. You need to know the volume of the room in metric units for some scientific calculations.
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