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Part 1: An old supply of nitrogen gas held in a 0.250 m3 tank inside a hospital storage room exerts a pressure of 1.11 atm at 303 K. Calculate the density of the nitrogen gas in units of (g/L).
Part 2: Refer to Part 1. For waste disposal, the gas is moved to a 22.0 L container, and cooled to a temperature at which the gas pressure is 8.60 x 103 mm Hg. Calculate the final temperature of the gas in absolute Kelvin.
A flask contains 0.500molmol of liquid bromine, Br2\rm Br_2. Determine the number of bromine molecules present in the flask.
how will you use the known compounds that are out in the lab to help you find the identity of your unknown compounds
what is the diffrence between anatomical theory of diease, humoral concept of diease, and germ diease.
Using the elements sodium, potassium, calcium, magnesium, carbon, oxygen, nitrogen, fluorine, chlorine, iron, hydrogen and sulphur, provide some key features of the periodic table such as: How they are organised in groups, periods and blocks
In a 4.09 liter container at 25C are placed 1.23 moles of O2 gas and 3.20 moles of solid C(graphite). If the carbon and oxygen react completely to form CO(g) what will be the final pressure in the container at 25C
Suggest a synthesis for the following alcohol starting from an aldehyde or ketone and propylmagnesium bromide
Tums is an example of an antacid that contains calcium carbonate , caco3. consider the reaction between this basic material and HCI. how many moles of HCI do you need to neutralize
It takes 50.0J to raise the temperature of a 12.0g piece of unknown metal from 13.0 C to 24.0 C. Explain what is the specific heat for the metal
two ideal gases a and b are at the same temperature volume andpressure. gas a is reversibly expanded at constant
The thermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a 1st order reaction 4PH3(g)--- P4(g)+6 H2(g) The half life of the reaction is 35.0 s at 680C calculate a)
Calculate [Cr^3+] in eequilibrium with Cr(OH)4- when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at pH 10.0
The hydroxyl radical, OH, is important not only in atmospheric chemistry but also in cell biology, as it participates in biochemical reactions as a free radical.
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