Calculating the number of moles
A sample of 1.00 L of gas at NTP conditions contains 20% oxygen and 80% nitrogen. Calculate the number of moles of each gas.
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The heat of vaporization of benzene, C6H6 , is 30.8 kJ/mol at its boiling point of 80.1 °C. How much heat is required to vaporize 128 g benzene at its boiling point.
For the reaction represented by the equation Cl2 + 2KBr ® 2KCl + Br2, calculate the percentage yield if 200. g of chlorine react with excess potassium bromide to produce 410. g of bromine.
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NH absorptions are usually much weaker and less broad than the OH absorptions. Neat, aliphatic, primary amines show two absorptions between 3400 to 3330 cm-1 and 3330 to 3250 cm-1 due respectively to asymmetrical and symmetrical stretch.
On a particular day, the barometric pressure at the top of the mountain was 330 torr. On that day, at what Celsius temperature did water boil on the top of the mountain?
Estimate the value of the equilibrium constant at 650 {rm K} for each of the following reactions. Delta H{^{circ}_{rm f}} and S{^{circ}} for rm BrCl(g) is 14.6 {rm kJ/mol} and 240.0 frac {rm J}{rm mol cdot K}, respectively.
You are planning to purchase 100 shares of preferred stock and must choose between stock A and stock B. Stock A pays an annual dividend of $4.50 and is currently selling for $35. Stock B pays an annual dividend of $4.25 and is selling for $36. If
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