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Chem Lab Final Study Set: Concentration & Spectrophotometer

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Chemistry - Analytical Chemistry

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Cards in this deck(21)
The ideal gas law is represented by the equation _____, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature in Kelvin.
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To convert a temperature from Celsius to Kelvin, you use the formula _____ + 273.5 = Kelvin.
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The formula to calculate the moles of CO2 is given by _____, where P is pressure, V is volume, R is the ideal gas constant, and T is temperature.
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The moles of CO2 produced in a reaction involving NaHCO3 are the same as the moles of _____.
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To calculate the mass of NaHCO3, use the formula _____ (molar mass/1 mol NaHCO3).
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The percentage of NaHCO3 in a sample is calculated using the formula _____ / mass of sample (given) x 100.
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A spectrophotometer is an instrument used to measure the amount of _____ absorbed by liquid samples.
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The difference between transmission and absorption is that transmittance is the fraction of light that passes through, while absorbance is how much light was _____ through the sample.
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To calculate the concentration of an unknown solution, use the formula _____, where A is absorbance.
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The concentration of a known solution can be calculated using the formula _____, where C is concentration and V is volume.
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Titration is a scientific method used to determine how much stomach acid was absorbed by sodium hydroxide (NaOH). It is important to note that the antacid only _____ some of the stomach acids.
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To find the titration volume, subtract the initial buret volume from the _____ buret volume.
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The mmoles of NaOH added during a titration can be calculated using the formula _____ x titration volume.
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The mmoles of HCl reacted in a titration is the same as the answer for _____ NaOH.
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To calculate the initial mmoles of HCl, use the formula _____ x titration volume.
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The mmoles of HCl absorbed is calculated by subtracting the mmoles of HCl reacted from the _____ mmoles of HCl.
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To calculate the grams of HCl absorbed, multiply the mmoles of HCl absorbed by the molar mass and divide by _____ mg/g.
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The HCl absorbed per gram of antacid is calculated by dividing the grams of HCl absorbed by the _____ of antacid (given).
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A protein is a chain of _____ acids.
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Denaturing is a process where high temperatures and/or extreme pH levels cause enzymes to change shape, breaking down their secondary and tertiary structures so they cannot _____.
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An inhibitor is an incorrect reaction that prevents the substrate from being in place with an enzyme, where the inhibitor acts as a _____ key and the substrate as a good key.
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