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Calculate the vapor pressure lowering of water when 5.67 g of glucose, C6H12O6, is dissolved in 25.2 g of water at 25 ºC. The vapor pressure of water at 25º C is 23.8 mmHg. What is the vapor pressure of the solution?
The heat of combustion of cyclobutane is 650.3 kcal/mol. How much energy is released during the complete combustion of 450 grams of cyclobutane.
How many grams of sodium azide are needed to provide sufficient nitrogen gas to fill a 35.0 by 35.0 by 25.0 cm bag to a pressure
a 100- lightbulb is placed in a cylinder equipped with a moveable piston. the lightbulb is turned on for 2.0times10-2
a sample of a solid of 29.19 grams is placed in a flask. toluene is added to the flask toluene in which the solid is
What is the electron configuration of Fe(II). since the (II) is added on do I subtract 2 from the end and make it 24 instead of 26
What is the composition of anti-dust chalk? What are differences between normal blackboard chalk and anti-dust chalk? What made anti-dust chalk anti-dust? Explain in details.
Briefly explain why it is important to allow a hot sample to cool to room temperature before you determine its mass.
The temperature is 2200 oC inside the lightning bolt, the bolt lasts long enough for all three species to reach equilibrium at that temperature, and the pressure of NO is 0.001 atm at equilibrium. Calculate the standard free energy change ΔGo for ..
you need to prepare 100.0 ml of a ph4.00 buffer solution using 0.100 m benzoic acid pka 4.20 and 0.140 m sodium
consider the following combustion reaction 2c4h10 13o2 -gt 8o2 10h20. 125 g of c4h2o react with 415g o2.a. which
The equilibrium constant at 427°C for the reaction N2(g) + 3H2(g) 2NH3(g) is Kp = 9.4 × 10-5. Calculate the value of ΔG° for the reaction under these conditions.
CaC2 + 2 H2O --> Ca(OH)2 + C2H2 If 100. g of CaC2 and 100. g H2O are mixed, what is the theoretical yield (in grams) of C2H2 that can be produced
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