Explain what mass o2 is needed to inflate it to the same
Explain what mass O2 is needed to inflate it to the same size and pressure at the 5 degrees Celsius if 12.0 g of O2 is needed to inflate a balloon to a certain size at 27 degrees Celsius.
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Determine the numbers of grams of dry NH4Cl need to be added to 1.90 L of a 0.600 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.67? Kb for ammonia is 1.8 x 10-5.
What power output of the rider is needed to maintain a constant speed of 3.2 m/s (around 7.2 mph) up a 5.0% grade (a road which increases 5.0 m for every 100 m all along the pavement)? Suppose that frictional losses of energy are negligible.
The hydrogen gas generated is collected over water at 25.0°C.The volume of the gas is 150 mL calculated at 1.00 atm. determine the number of grams of sodium used in the reaction.
The probability that airplane engine will fail in transcontinental flight is 0.002. Supposing that engine failures are independent of each other, determine the probability that on certain transcontinental flight, a six-engine plane will experience
A sphere of radius r begins from rest and rolls without slipping all along a curved surface, dropping via a vertical distance of 0.666 m. Determine the final speed v of the sphere's center of mass?
The rain gutter is made from sheets of aluminum which are 18 in wide by turning up edges to form right angles. Find depth of gutter which will maximize its cross-sectional area and permit greatest amount of water flow.
The position of an object moving with the simple harmonic motion is given by the equation x = 4 cos (6*pi*t), where x is in meter and t is in seconds. Determine the period of the oscillating system? Describe!
Determine the numbers of grams of al2O3 can be formed from 9 grams of al and9 grams of O2? If 2.19 grams of compound x is burned, 7.4 of grams of CO2misformed, What percentage by weight of compound x is carbon?
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