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A plane flies from base camp to Lake A, 330 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 220 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to the base camp.
Determine the enthalpy of the reaction. Assume that the density and the specific heat of the solution are the same as water. Incude the correct sign.
The first ionization energy of bismuth is Ei1 = +703 kJ / mol. What is the longest possible wavelength of light that could ionize an atom of bismuth?
If the following elements were to form ions, they would attain the same number of electrons as which noble gas? Noble gases- He, Be, Ar
How many grams of KNO3 are needed to make 450 mL of a solution that is to contain 5.50 mg/mL of potassium ion? Calculate the molarity of the solution.
Initially a container contains 0.46 M HI and no product. What is the equilibrium concentration of H2
Calculate the concentration of an pilocarpine solution with a pH = 9.34. The Kb of pilocarpine is 7.41x10-8 i need to know the steps to do problems like this one, if the steps can be simplified that would be great, thanks a lot.
Carbon-14 decays by beta emission with a half life of 5,730 years. Assuming a particular object originally contained 6.5 micro grams of C-14 and now contains 0.76 micro grams of C-14, how old is the object
Acetaminophen is a weaker acid than carbonic acid, but aspirin is a stronger acid than carbonic acid. Prepare a flow diagram showing a procedure that can be used to separate a mixture of sucrose
Compare this general form of this phase diagram with the interactive phase diagram for CO_2 and classify points a through g on the phase diagram according to the number of phases present at each point.
If a 10.00mL sample of unknown concentration of HF is titrated with 28.94mL of 0.1040M NaOH
Suggest why Po-210 and At-211 are the isotopes of those elements with the longest half-lives.
A sample of sulfur weighing 0.210g was dissolved in 17.8g carbon disulfide. (Kb= 2.340C/m ) If the boiling point elevation was 0.1070C, what is the formula of a sulfur molecule in this environment
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