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a weather balloon with a volume of 270.0 L is launched at 20degrees C at sea level, where the atmospheric pressure is 1.00 atm. the balloon rises to an altitude of 20,000 m where atmospheric pressure is 65 mmhg and the temperautre is 210k. What is the volume of the balloon at 20,000m?
In the following experiment, the water in the glass is stirred by slowly lowering a weight (m=3kg) through a series of pulleys. If the 3kg weight is lowered 10m, the stirrer spins, but eventually all of the kinetic energy of the stirrer is turned ..
water from 20 degrees Celsius to 100 degrees Celsius. What is the delta H of combustion of the propane. What is the sign (positive or negative) of delta H?
write the balanced equation for the reaction of the active ingredients in Gaviscon Extra strength with excess acid.
A piece of metal of mass 22 g at 92C is placed in a calorimeter containing 53.7 g of water at 21C. The final temperature of the mixture is 55.3C. What is the specific heat capacity of the metal?
A bicycle tire is filled with air to a pressure of 81.0 psi at a temperature of 19°C. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58°C. The volume of the tire increases by 2.0%. What is the new pressure in the ..
The buret is misaligned with the drop counter so approximately 10 drops of NaOH are added to the HCl before they are counted
Determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn field was observed at 3.0 ppb. ?
In the titration, 20.46 mL of the sodium hydroxide was used to react with 0.1082 grams of KHP. What is the molarity of the NaOH?
how many grams of C5H10O2 need to be dissolved in 50 mL of solution, in order to have a 0.1 molar solution?
How many grams of cholesterol does a person with a blood volume of 4.60 L have circulating in his or her blood?
How many kilograms of acetic acid needs to dissolve 94 grams of potassium chloride if the freezing point changed 19.6 degrees celcius?
Would entropy for a gas be heat Irreverisibly be greater than, less than or equal to a gas heated reversibly? Explain
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