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While rearranging a dorm room, a student does 300 J of work in moving a desk 2.0 m. What was the magnitude of the applied horizontal force? If the man in Exercise 5 pushes the mower with 40% of the force directed horizontally, how much work is done?
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution containing 0.070 mol lysine (HL), 0.055 mol aspartic acid (H2A), and 0.0080 mol NaOH. Consider just acid-base chemistry.
explain why the addition of s2-ion to croh3 does not result in the formation of cr2s3. the addition of s2- ion to feoh2
Compound A is burned in a calorimeter that contains 3000 grams of water. if the combustion of 0.25 moles of this compound causes the temperature of the water to rise 41.0 degrees celcius, what is the molar heat of combustion of compound A? The..
a truck driver used sand to soak up a 1 g spill of lindanec6h6cl6. he placed tehcontaminate soil in an open drum which
A particular balloon can be stretched to a maximum surface area of 1257 cm2. The balloon is filled with 3.2L of helium gas at a pressure of 763 torr and a temperature of 291K. The balloon is then allowed to rise in the atmosphere
chemiluminescence reaction will actually occur very slowly in air. What component of air will bring about this reaction and what is its approximate concentration in air?
Select all of the correct statements about reaction rates from the choices below. The lower the rate of a reaction the longer it takes to reach completion.
For the following combination of reactants, enter the formulae of the products in the space provided and give their states. Separate multiple products with a comma
A solution composed of 20.00 g C2H5OH in 60.00 g CCl4 has a density of 1.280 g/mL. Calculate the molarity of C2H5OH in the solution.
The ideal gas law relates the pressure P, volume V, absolute temperature T, and amount of gas n. The law is P = nRT/V where R is the gas constant.
using half reactions write a balanced oxidation-recuction reaction.oxidation of 1 to 12 and reduction of mn02 to
At 25 °C and 775 Torr, carbon dioxide has a solubility of 0.0347 M in water. What is its solubility at 25 °C and 1370 Torr
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