A collapsible balloon for carrying meteorological testing instruments aloft is partly filled with 626 liters of helium, measured at 25 °C and 756 torr. Assuming the balloon is free to expand or contract according to changes in pressure and temperature, what will be its volume at an altitude where the temperature is ï€58 °C and the pressure is 0.641 atm?
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Chemistry, 21.06.2019 20:30
18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*
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Chemistry, 21.06.2019 21:30
Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)
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Chemistry, 22.06.2019 01:00
Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d
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Chemistry, 22.06.2019 06:30
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
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