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Passengers in an airplane at an altitude of 10 000 ft are under 74.3 kPA of pressure from the atmosphere. The interior of the small airplane is 18 degrees centigrade. The oxygen content in the atmosphere is 21.0 % by volume. Explain how much gaseous oxygen does 1.00 L of air contain in moles?
what is the equilibrium concentration of C2H5OH? Help me work this please. My book shows answer of 27. However, I worked it and got 2.7
calculate the volume of 0.540 m sodium hydroxide solution contains 11.5 grams of sodium hydroxide?nbsp considering the
The hydrocarbon benzene C_6_H_6_ boils at 80.1 C. How much energy is required to heat a 1.00 kg of this liquid from 20 C to the boiling point and then changes the liquid completely to a vapor at that temperature
which the excess HClO4 was back-titrated with 8.72-mL of 0.3045 M NaOH using bromocresol green as an indicator. What is the concentration of the perchloric acid solution?
A reaction has an activation energy of 32 kj/mol. If the temperature of the reaction doubles from 45 to 90 degrees by what factor will the ratio of the rate constants, k2/k1,change
Why does the quantum mechanical description of many electron atoms make it difficult to define a precise atom radius
A certain atom is bombarded with a neutron and changes into Lithium 7. What was that atom? (It is a fission reaction)
The specific heat of a certain type of cooking oil is 1.75 J/(g·°C). How much heat energy is needed to raise the temperature of 2.02 kg of this oil from 23 °C to 191 °C
Acid halides and Acid anhydrides can also be used to make esters - show how ethyl ethanoate can be made from a) and acid halide and b) an acid anhydride
How many grams of each reactant remains after the reaction is complete and how many grams of each product is produced
a chemist is studying small organic compounds for their potential use as an antifreeze. when .243g of a compound is
How low would the blood glucose concentration have to fall to decrease the rate of glucose phosphorylation in the erythrocyte to 90% of Vmax
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