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A 70.0 g steam sample at 150.0 degree Celsius was converted to ice at -150.0 degree Celsius, calculate the total amount of heat removed in the process.
Calculate the number of moles of solute present in each of the following solutions: a)245 mL of 1.50 M HNO3 b) 50.0 mg of an aqueous solution tha tis 1.25 m NaCl c) 75.0 g of an aqueous solution that is 1.50% sucrose by mass
What is the density of a block of marble that occupies 253 cm3 and has a mass of 752 g?
A sample of sodium reacts completely with 0.142 kg of chlorine, forming 234 g of sodium chloride. What mass of sodium reacted?
in the reaction P4+5O2->2P2O5, how many moles of oxygen are consumed each time 0.500 mole of P2O5 is formed?
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 432 cm^3 and the total mass is 4.32 kg
Fe2O3(s) + 3CO(g)-> 2Fe(s) + 3CO2(g) Based on this equation, how many moles of carbon monoxide (CO) are needed to react completely with 1.75 moles of iron (lll) oxide (FeO3)??
Calculate the equilibrium constant KP if the total pressure is 2.6 atm at that temperature.
A hypothetical metal has a simple cubic unit cell and its atomic radius is 1.167 Å. Calculate the edge length of the unit cell. A hypothetical metal has a face-centered cubic unit cell and its atomic radius is 1.738
Write the Net Ionic Equation and determine the standard potential for the reaction between permanganate and tin(II). From the potential
A 460 mL sample of oxygen (O2) was collected by displacement of water at 24 ? C under a total barometric pressure of 1095 torr. What mass of dry oxygen was collected? The vapor pressure of water at 24 ? C is 22 torr
Determine how many grams of sodium chloride are required to prepare 250. mL of this solution. (if given the density of the saline solution is 1.0 g/mL)?
Calculate ΔG for this reaction under the following conditions (assume an uncertainty of 1 in all quantities, calculate all thermodynamic values from Appendix 4 for all parts of the problem).
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