How many grams of oxygen molecules required to burn octane
Octane has a density of 0.692 grams per centimeter cubed at 20 degrees celcius . How many grams of oxygen molecules are required to burn 4.54 decimeter cubed of octane?
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A zero-order reaction has a constant rate of 2.90×10-4 M/rm s. If after 65.0 seconds the concentration has dropped to 9.00×10-2 M, what was the initial concentration?
Iron has a density of 7.874. g/cm3. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?
If 56.0 g of mercury(II) oxide is heated and 26.0 % decomposes, what is the pressure of oxygen gas in a 621 mL container at 25oC?
A segment of urban four-lane (two lanes in each direction) has a 3% upgrade that is 455m long followed by a 305m 4% upgrade. It has 12ft lanes and 3ft shoulders.
The plot of ln[A] versus time yields a straight line with slope -0.0045 s^-1. Determine the following: 1. The value of the rate constant.
When this mixture is dissolved in 150. g of water, the freezing point is found to be -2.24 degrees C. Calculate the percent by mass of sugar in the original mixture.
Translate the following word equations into unbalanced chemical equations and explain how the equations represent what happens,
Determine the minimum necessary clearance height of the overpass and the resultant elevation of the bottom of the overpass over the PVI. (ignore the cross-sectional width ofthe overpass).
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