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The subsequent four numbers are estimates of the mass of an object- 4.30 g, 5.82 g, 5.79 g, and 5.47 g. Explain what is the standard deviation to two significant figures?
A steel cylinder contains 120. moles of nitrogen gas at a temperature of 32 C and pressure of 775 torr. After some of the nitrogen gas has been used,
The base solution was added to the acid solution but was not stirred while temperature measurement were not made: c.) Some of the base splashed out of the calorimeter while pouring:
Calculate the value of the reduced mass of a hydrogen atom. Take the masses of the electron and proton to be 9.109390x10-31kg and 1.672623x10-27kg, respectively. What is the percent difference between this result and the rest mass of an electron
one compound contains 80.78 c 13.56 h and 5.66 of. a solution of 1.03g of this in 7.49g of benzene freezes at 3.01
A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature distribution to be Gaussian, with a mean of 101.00°F
Suppose you had started with 3.25 moles of sodium hydrogen carbonate,how many moles of sodium chloride would you expect to be formed?
a farmer wants to grow wheat on a sodic soil. the cec 30 meq100g and the esp 18. he needs to reduce the esp to 6.nbsp
what are the reactants in the equationk2cro4aq pbno32aq -gt kno3aq pbcro4aq?what are the proper coefficients to balance
If a reaction is reversible, what are the relative amounts of reactant and product at the end of the reaction
Give the structure of the phosphorus ylide and carbonyl compound you might use to prepare the following alkenes
Draw the condensed structural formula of benzyl acetate and circle the acetic acid part and the phenyl part.
Explain how the enthalpy, entropy, and free energy of this system change as the dissolving process proceeds. Of the three parameters, ÄS, ÄH, and ÄG, specified in part 1, which has a sign different from the other two. Explain.
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