What is the mole fraction of mgcl2 in a solution
What is the mole fraction of MgCl2 in a solution that is 11.04% by mass MgCl2(aq)? The molar mass of MgCl2 is 95.21 g/mol.
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The specific heat capacity of silver is 0.235 J/g K. Its melting point is 962 C and its enthalpy of fusion is 11.3 kJ/mol. What quantity of heat in joules is required to change 5.00 g of silver from a solid at 25 C to a liquid at 962 C?
What velocity would a proton need to circle Earth 1000 km above the magnetic equator, where Earth's magnetic field is directed horizontally north and has a magnitude of 4.00 10-8 T?
The dry solid weighs 0.397 g. Use this mass and dillution volumes to calculate the actual molarity of the sulfuric acid in the initial solution
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A 34 kg child sits in a swing supported by two chains, each 3.1 m long. If the tension in each chain at the lowest point is 283 N, find the child's speed at the lowest point.
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Condensation occurs on a bathroom window at a rate of 0.5kg per hour. If the bathroom air is at 26 Deg C and fully saturated with water vapour, calculate approx the rate of heat transfer on to the window surface if the inside surface is maintained
A white solid precipitate forms. What happens to the mass of the mixture after the solid precipitate forms? Choose the best answer.
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