Chlorine react with excess potassium bromide
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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If 3.30 moles of ethane, C2H6 undergo combustion,according to the unbalanced equation C2H6+O2--> CO2+H2O, how many moles of oxygen are required?
Liquid Heptane, C7H16, burns in oxygen gas to yield carbon dioxide and water. What mass of carbon dioxide is produced when 15.0 mL of heptane burns completely?
What is partial pressure?What is the relationship between the partial pressuresof each gas in a sample and the total pressure of gas in the sample?
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.
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 are some possible sources of error in your calculated atomic weight for Mg?
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.
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.
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