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A solid aluminum sphere has a mass of 87g. How do you use the density of aluminum to find the radius of the sphere in inches?
When 10.0 g KOH is dissolved in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 25.18°C to 47.53°C. What is the enthalpy change, in kJ/g of KOH dissolved in the water? Assume that the solution has a specific heat capacity ..
When X rays of wavelength 0.096 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2°. What is the distance between the layers of atoms responsible for the diffraction?
450 mL of oxygen is bubbled through water at 10 degrees celsius and exerts 720.0 torr. What volume will the dry gas occupy at 730.0 torr and 10 degrees celcius?
Calculate delta H of this reaction. Assume that the total volume is the sum of the individual volumes and the density and specific heat capacity of the solution are the same as for pure water. d for water=1.00g/mL; c for water=4.184 J/g degrees Ce..
Given the following balanced chemical equation Ca(OH)2+2HCl-->CaCl2 +2H2, if 56.7g of calcium hydroxide react completely, how many g or HCl also reacted
An aqueous solution at 25 °C is 2.28 x 10^-7 M in CuNO3 and 5.03 x 10^-7 M in AgNO3. What is the lowest cyanide concentration at which a precipitate appears
how many moles of liquid unknown will be present in a 2 m solution? Also, assuming that the molar mass of the liquid unknown is about 50g/mol, calculate the approximate mass of liquid unknown that should be added to your water-ice mixture.
A typical backyard swimming pool holds 150 yd^3 of water. What is the mass in pounds of the water?
Extracting aluminium uses a current of 25000 ampere.What is the time taken to produce 10kg of aluminium from Al2O3(liquid
What is the new molarity of a solution when 650mL of water are added to 500.0mL of a 3.2 molar solution?
Hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules
the osmotic pressure of this solution was 0.00222 atm at 25 C. calculate the molar mass of hemoglobin, which is a molecular compound and a nonelectrolyte.
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