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Assume you are performing the calibration step of Experiment 8 and you begin with 70 g of water at 20 oCand 70 g of water at 80 oC. After addingthe two portions of water into your calorimeter setup and followingthe procedure outlined in the experiment, you determine thetemperature of the mixed portions of water to be45 oC. What is the heat capacity of the calorimeter?
Magnesium metal rects with oxygen to make a white powder knon as magnesium oxide. As the reaction proceeds, a bright white flame is seen. It is found that 2.6 g of magnesium reacts with1.6 of oxygen.a) What is the word equation
A box contains 12600 red marbles and 885000 yellow marbles. What sample size is required to reduce the sampling standard deviation of red marbles to 1.85%?
draw the structures of methyl salicylate and say what evidence indicates that methyl salicylate was formed. draw the
A .100g sample of a carbon, hydrogen, oxygen compound was burned in a stream oxygen and produced 0.220 g CO2 and .239 g H2O. what is the mass percent of hydrogen in the sample
Determine the value of Faraday used If the electrolysis was carried out for eighty minutes with a current of four amperes flowing
A solution of NaOH(aq) contains 8.0 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C
If equal masses of both metals were transferred to equal volumes of water in seperated graduated cylinders, which graduated cylinder would have the greatest volume change. why.
Calculate the work done (in joules) if the gas expands against a constant pressure of 2.1atm. Enter your answer in scientific notation.
If you forget to use the hydrate molar masses of the reactants, and use the regular molar masses instead, will the calculated % yield be too low, too high or unchanged. Explain your answer using complete sentences.
What is the concentration (in M) of the nitrate ion when 18.4 mL of a 0.744 M solution of sodium nitrate is combined with 15.9 mL of a 0.734 M solution of copper(II) nitrate? Assume the volumes are additive.
consider 4.50 of a gas at 365 and 20. if the container is compressed to 2.90 and the temperature is increased to 35
How much entropy does this produce per hour in the surroundings at 25.4 °C? Assume the heat transfer is reversible.
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