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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A 65 g ice cube at 0°C is heated until 40 g has become water at 100°C and 25 g has become steam at 100°C. How much energy was added to accomplish the transformation?
Assume that a reaction takes place at 296 K and 306 K. What must the activation energy be for the rate constant to double as described?
Given that you are able to perform a diffusion experiment during a period of 30 days and that you are able to analyze a diffusion layer with thickness of order of 10-3 cm, what is a rough estimate of the smallest diffusion coefficient that could b
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products.
The actual amount of calcium in the sample is 15.70%. What conclusion can you draw about the accuracy and precision of these results?
7.321 mg of an organic compound containing carbon, hydrogen, and oxygen was analyzed by combustion. The amount of carbon dioxide produced was 0.2503 g and the amount of water produced was 0.1025 g.
If the pure vapor pressures of benzene(C6H6) and toluene(C7H8) are Pben=94.6 torr andPtot= 29.1 torr, what are the mole fractions of benzeneand toluene xben and xtol in both the liquidand vapor phases above a mixture where the total vapor pressure
A 10.0-L balloon contains helium gas pressure of655mmHg. What is the new pressure of helium gas at each of the following volumes if there is no change in temperature?
Suppose in the procedure to extract tert-butylphenol from the ether layer you accidentally added the second 10 mL of NaOH to the first 10 mL of NaOH instead of to the ether layer as specified in the procedure.
A 100g of bulk water is dispersed as droplets of radius0.5x10-5 mm. If the surface tension of water is7.2x10-2 N/m, what is the change in free energy inkJ?
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