Determining the mass of carbon dioxide produced
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?
[Given: density of heptane = 0.6838 g/mL]
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The EPA limit for lead in the water supply is 15 parts per billion by mass. Calculate the number of lead ions present in 1.00kg of water that is at the EPA limit for lead.
Butyric acid is responsible for the foul smell of rancid butter. The pKa of butyric acicd is 4.84. a) Calculate the pKb for the butyrate ion.
What are the products of cyclohexanol + SOCl2
Then 2.00 mL of solution A is diluted with 8.00 mL of petroleum ether, forming solution B. How many grams of oleic acid are 5.00 mL of solution B?
At 700.°C, the total pressure of the system is found to be 3.78 atm. If the equilibrium constant KP is 1.52, calculate the equilibrium partial pressures of CO2 and CO.
L is allowed to come to equilibrium against a constant external pressure of 8.3 atm at constant temperature. Calculate the work observed for the volume change in the piston (in kJ)
A solution of 0.90 g of an unknown nonelectrolyte in 300 mL ofwater at 27?C has an osmotic pressure of 38.4 torr. What is the molecular weight of this compound? (Neglect volumechange due to solute, R = 0.0821 L·atm/mol·K)
The running engine of an automobile produces carbon monoxide (CO), a toxic gas, at the rate of about 188 g CO per hour. A car is left idling in a poorly ventilated garage that is 5.0 m long, 4.0 m wide, and 2.2 m high at 20°C
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A child is admitted to the pediatric unit for an appendectomy. Which question would the nurse ask to determine what the child thinks is the reason
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