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A clock has a pendulum that performs one full swing every 1.0 sec. The object at the end of the string weighs 10.0 N. Calculate the length L of the pendulum.
A 23.45g piece of iron and a 29.95g piece of gold at 100.00C were dropped into 530ml of water at 16.05C. The molar heat capacities of iron and gold are 25.19 (j/mol x C) and 25.41 j/(mol x C). respectively. What is the final temperature of water a..
Suppose that a student performing this experiment recorded the concentration of NaOH solution as 0.513 M, instead of the correct value of 0.531 M.
Calculate the residual volume for a gas with the Redlich-Kwong equation of state. Interpret the result. If there is a depependence on T, why is this so. Calculate the excluded volume for the above equation of state. Interpret the result.
A ruby laser produces radiation of wavelength 633 nm in pulses whose duration is 2.00 x 10-9 s. Of each pulse contains 1.20 x 1018 photons, what is energy of each pulse?
What exactly are myosin, actin, troponin and tropomyosin chemically?, What molecule releases energy when its bonds are broken. Which bonds are broken to release that energy?
a reaction mixture contains 11.0 g of pcl3 and 6.83 g of pbf2.pbf2 pcl3 rarr pf3 pbcl2how many grams of the compound
A concentrated sulfuric acid solution is 65.0% H2SO4 by mass and has a density of 1.55 g/mL at 20°C. What is the mass of 8.00 L of the concentrated sulfuric acid solution?
Describe how you would prepare a 500 mL of a solution which is 0.500 M sodium and 1.60 M phosphate if you only had sodium chloride and potassium phosphate available
What is the molarity of your NaOH solution? 2) You are given an impure sample of oxalic acid dihydrate (MW=126.068 g/mole) and asked to determine the percent of oxalic acid dihydrate present in the sample.
If acetic acid has a pure vapor pressure of 20 torr at 30 degrees C and acetaldehye has a pure vapor pressure of 1000 torr at 30 degrees C, a mixture of 12 moles of acetic acid
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2 degrees Celsius. What is the molar mass of the solute?
Two readings (initial volume and final volume) are required to deliver a specified volume of titrant. For a delivered volume of 6.25 mL, compute the uncertainty in the volume of titrant delivered.
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