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A gaseous mixture consisting of 0.513 grams of H2 and 16.1 grams of N2 occupies 10.0 liters at 20.0 degrees C. Calculate the partial pressure of H2 and N2 in the mixture in units of atmosphere.
Na3PO4+CaCl2 ---> Ca3(PO4)2+NaCl if 0.996 g of Na3PO4 are provided, how many grams of Ca3(PO4)2 should be formed?
A mixture of gases with a pressure of 800.0 mm Hg contains 60% nitrogen and 40% oxygen by volume. What is the partial pressure of oxygen in this mixture?
What is the molarity of the carbonate ion in sodium carbonate, Na2CO3, prepared by dissolving 3.5 g of sodium carbonate in enough water to form 0.800 L of solution?
Suppose sulfur dioxide reacts with oxygen at 25 degrees Celsius. 2SO2 (g) + O2 (g) ->
Write the equation(s) that describe the synthesis of (NH4)2PbCl6 starting from Pb(II) [i.e Pb(NO3)2]. Hint:There is a redox reaction in the first step, where the bleach (ClO^-) is the oxidising agent.
A brand new amino acid was recently discovered "calline" it is 3 ionizable groups with pka values of 2.3, 4.7
when a 50.0-g nugget of pure gold is heated from 35.0 C to 50.o C, it absorbed 5200.0J of energy. find the specific heat of gold.
If you set the freezing point of oleic acid as 0 and the boiling point as 130, what is the freezing point of water on this new scale?
provide the newman projections across the c2-c3 bonds for the major conformers after drawing the zig-zag structures of
Calculate the vapor pressure of a solution prepared by dissolving 70.0 g of naphthalene, C10H8 (a nonvolatile nonelectrolyte), in 220.0 g of benzene, C6H6, at 20°C. Assume the solution is ideal. The vapor pressure of pure benzene is 74.6 torr at 2..
you are going to a birthday party and you want to give the children balloons filled with he gas. how many balloons can
the standard enthalpy change for the reaction 2hgl o2g 2hgosis -211kjwhat is the standard enthalpy formation of
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