Chemistry

Chemistry, 28.09.2019 03:30, hsjsjsjdjjd

Calculate the number of mol of helium in a 2.01-l balloon at 29°c and 2.71 atm of pressure. be sure to answer all parts. imol

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Chemistry, 17.07.2019 21:30, squawk1738

Helium has a density of 1.79 x 10-4 g/ml at standard temperature and pressure. a balloon has a volume of 6.3 liters. calculate the mass of helium that it would take to fill the balloon. be sure to follow significant figure rules when calculating the answer. 35,000 g 1.1 x 10-3 g 2.8 x 10-5 g 1.1 g

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Chemistry, 18.09.2019 05:10, BLASIANNkidd

Aspherical balloon of volume 4.12 103 cm3 contains helium at a pressure of 1.24 105 pa. how many moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 10-22 j? part 1 of 4 - conceptualize the balloon has a volume of 4.12 l and a diameter of about 20 cm, which seems like a reasonable size for a large toy balloon. the pressure of the balloon is only slightly more than 1 atm, and if the temperature is close to room temperature, we can use the estimate of 22 l/mol for an ideal gas at stp conditions. if this is valid, the balloon should contain about 0.2 moles of helium

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Physics, 01.10.2019 21:00, mykiagray

Helium in the balloon is initially at 15°c and 550 kpa and cv = 3.12 kj/(kg-k) for helium. the balloon can be considered to be a rigid sphere with a radius of 25 m. (a) determine the mass of helium in the balloon, in kg. (b) as the balloon rises, the helium is heated by solar radiation to 300°c. the balloon will burst if the pressure in the balloon is greater than 1.1 mpa. will the balloon burst? why or why not? (c) what is the heat transfer to the balloon due to solar heating, in mj? (d) the air balloon company wants to reduce mass of the ball

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Calculate the number of mol of helium in a 2.01-l balloon at 29°c and 2.71 atm of pressure. be sure...

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