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A fire extinguisher with a volume of 1.0 ft3 initially contains CO2 at 20 oC and atmospheric pressure and weighs 25 pounds. After being charged with CO2 to a pressure of 300 psig at 20 oC, what is the weight of the extinguisher?
A gas thermometer has a volume of 83.3 mL at 20 degrees C. After being placed in a container whose temperature is to be measured its volume ( at the same pressure ) dropped to 67.3 mL. The new temperature is?
When an alkyne, such as but-2-yne, is subjected to D2 and palladium, 2 equivalents of D2 are added. When an alkene, such as cis-but-2-ene, is subjected to these conditions, only 1 equivalent of D2 is added. When an alkane, such as butane is subjec..
what are some of the benefits of using geothermal energy to produce electricity?what are some of the negatives
Consider the general chemical equation. 9 A + 2 B ---> 8 C + 4 D (a) How many moles of C are produced from 9 moles of A. (b) How many liters of gas D are produced from 9 liters of gas A at the same temperature and pressure
How many grams of oxygen are collected in a reaction where 231 mL of oxygen gas is collected over water at a temperature of 25°C and a total pressure of 697 torr?
use any resources available to you to find the structures of these drugs and then identify the functional group or
A sample of neon is collected at 2.7 atm and 12.0 oC. It has a volume of 2.25 L. What would be the volume of this gas at STP?
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 7.00 nm in diameter? Take the m..
what is the purpose of a buffer system? b)what is the purpose of NaNO2 in the buffer? c)how does the buffer react when some H3O^+ is added? d)how does the buffer react when some OH^- is added?
A mixture of MgCO3 and MgCO3·3H2O has a mass of 3.057 g. After heating to drive off all the water the mass is 2.790 g. What is the mass percent of MgCO3·3H2O in the mixture.
Give the steps to prepare the column required for the best purification of 0.40g of crude product using silica
What is the frequency of a photon emitted from a hydrogen atom when an electron makes a transition
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