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By what factor does the fraction of collisions with energy equal to or greater than activation energy of 100kJ/mol change if the temperature increases from 19.0 c to 50.0 c ? Give in scientific notation.
The Dumas method is used to analyze an unknown substance. 0.500 g of liquid was place in the 800.0 mL bulb. When heated to 68.7 C, the liquid vaporized, and the pressure was measured to be 154.5 mmHg.
Iron and Steam can react to produce solid Fe3O4 and hydrogen gas. This reaction is carried out using 25.0 g of iron and 48.2 g of steam. A)What is the maximum mass, in gram, of Fe3O4, that can be produced from this reaction
A sample of gas with a volume of 750 mL exerts a pressure of 98 kPa at 30 c. what pressure will the sample exert when it is compressed to 250 mL and cooled to -25 degree celsius.
Iron is extracted from its ore using carbon. This can be represented using the following equation. Calculate the percent atom economy for pure iron.
Use the Nernst equation to calculate the Cd2+ concentration when given cell potential of +0.768V and Mn2+ concentration of .500M
What is the chemical formula of the salt produced by the neutralization of nitric acid with calcium hydroxide?
If the density of water is 1.00g/mL, what is the weight in pounds of gallon of water? you may assume that mass and weight are equivalent at the earth's surface.
the compound freon-12 (CCl2F2) is used as a coolant in refrigerators and air conditioners. It is produced through the following reaction: CCl4+SbF3-> CCl2F2+SbCl3. If 15.0 mole of freon-12 are to be produced, what mass of the carbon tetrachloride ..
Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the can were heated to 1155 °C?
What will be the molarity of the resulting solutions made by mixing 140 mL of 3.2 M H3PO4 with 590 mL H2O?
How many miles could you drive for $3.90 if the gas mileage of your car is 14.0 km/liter of gasoline and the price of gasoline is $0.96/gal
What mass of carbon dioxide is produced from the complete combustion of 6.50×10-3 of methane?
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