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
Are spa packages based more on internal or external decision-making needs, or both? Choose which step is most likely to be used by the customer when considering purchasing retail spa items from the spa.
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.
Discuss the extent to which the characteristics of well-functioning, effective groups accurately describe the Freiburg hip replacement navigation system team.
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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