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A spherical balloon contains 10m^3 of helium at 1 atmosphere and 0C. What will be the diameter of the balloon at the altitute of 3.2 kilometer, where the temperature are -7C and 85000 N/m^2 respectively? What would be the diameter of the balloon if instead of the helium we had hydrogen? Find the weight difference for both cases.
The ballon ascends to and altitude where the pressure is 504 mmHg and temperature is -34degree celcius . What is the volume of the ballon at this altitude
What is the concentration of free [Cu2+] in an aqueous solution prepared as 0.25M in Cu2+ and 1.50M [NH3]. Cu2+(aq) + 4NH3? [Cu(NH3)4]2+ (aq) Kf = 5.0 x10^12
A hiker caught in a thunderstorm loses heat when her clothing becomes wet. She is packing emergency rations that, if completely metabolized, will release 30 kJ of heat per gram of rations consumed.
how many grams of caco3 are produced when you react 55.2 ml of 0.150 m cano32 with 0.655 grams of na2co3?nbsphow many
Determine the relative abundance in of each isotope in the synthesized material. To make it easy, use whole numbers (intergers) for the atomic mass of the meitnerium isotopes in your calculations.
An asteroid is in the shape of sphere and has a mass of 1000 kilograms. Determine the density (in grams per cubic centimeter) of this asteroid if its diameter is known to be 1.2 meters
make up a solution of an unknown that will contain lead, silver, mercury(I), copper, manganese, barium, and sodium ions, all in the same solution.
Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation.
how many grams of asprin were lost in the washing process you used to purify your product assuming you used 50ml if
If a Nicotinic acid, HC6H4NO2 is a weak monoprotic acid. A 5.7x10-2 M nicotinic acid is 1.6% ionized. Explain what is the Ka for this acid
Given non pourous material A having a density of 2.35 and non pourous material B having a density of 2.41 what is the theoretical density of material A+B when there is 75 weight % of material A and 25 weight % of material B when combined
What is the mass in grams of 2.50 x 10^12 lead (Pb) atoms. Enter your answer in scientific notation.
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