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A gaseous hydrocarbon with the empirical formula CH2 was placed in a 2.00L container. At a temperature of 101oC the pressure was 755 Torr and the mass of the hydrocarbon was 1.812g. What are the values of the integer a and b for this molecular formula (CaHb)?
The pH of a 0.10 M nicotinic acid solution is 2.93. What is the approximate value of Ka for nicotinic acid, HC6H4NO2? Assume small percent dissociation
calculate the change in ph caused by adding 10.0 ml of 2.24-m hcl to 370. ml of each of the following solutions. awater
This liquid is then diluted with water to form liquid .sulfuric acid, H2SO4, as the only product in the reaction. Write a balanced chemical equation for the formation of sulfuric acid from H2S2O7 when diluted with water.
3.2 x 10-3 moles of O2 gas effuse from a container in 10.0 minutes. How many moles of CH4 gas could effuse from the same container in 10.0 minutes under the same conditions
A 12.0 g sample of solic NH4Cl is heated in a 5.00 L container to a high temperature. At equilibrium, the pressure of NH3 (g) is 1.22 atm. What is the value of Kp for the reaction
What mass of oxygen (in grams) reacts when 13.2 g of methanol (CH3OH) are combusted in oxygen to produce carbon dioxide and water
For the reaction 2C6H6 + 15O2 → 3CO2 + 6H2O 30 grams of C6H6 are allowed to react with 79.09 grams of O2.
A solution was prepared to have a density of 1.20 g/mL and a molality of 2.24 m at 22oC. The Mm of the solute is 63.10 g/mol. (a) What is the molarity of the solution?
How high will a hot air balloon rise if the temperature inside is maintained at 330 K? Assume that the ambient temperature is 300 K. Assume that the pressure inside and outside are the same, but the density inside is reduced by heating
The activation energy for the reaction is found to be 40 kJ mol^-1. Assume that a simple Arrhenius expression gives the dependence of k upon temperature. The investigator runs the reaction in a container whose temperature is increased to 500 K. Wh..
list the opportunity costs of the followinga. going to collegeb. missing a lecturec. withdrawing and spending 100 from
Determine how many atoms there are in 1 gallon using your knowledge of mole calculations and unit conversions. Assume that the molecular formula for gasoline = C6H14 ,the density of gasoline =0.85 grams/mL
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