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A sample containing 4.80 g of O2 gas has a volume of 15.0 L. Pressure and temperature remain constant. a) what is the new volume if 0.500 mol of O2 gas is added? b) Oxygen is released until the volume is 10.0 L. How many moles of O2 are removed? c) What is the volume after 4.00 g of He is added to the 4.80 g of O2 gas in the container
a metal object with a mass of 19g is heated to 96 degrees Celsius, then transferred to a calorimeter containing 75g of water a1 18 degrees Celsius. The water and metal object reach a final temperature of 22 degrees Celsius. What is the specific he..
The reaction of boron with carbon monoxide produces compounds with these skeletal structures: B--B--C--O and O--C--B--B--C--O. For each of these compounds, draw the lewis structure that minimizes formal charges.For each compound select the atoms t..
A studet determined the percentage KHP in an impure sample of KHP . a 3.150g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration.1) calculate the number of moles of NaOH required for this titration
C2H4 + 3O2 = 2CO2 + 2H2O If you start with 54 grams of ethylene (C2H4) how many grams of carbon dioxide will be produced?
To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
How you will protect an underground pipe line from corrosion and what are biodegradable polymers or what are conducting polymers
In the preparation of the esters given in this experiment, the reaction product was extracted with 5% sodium bicarbonate solution in the isolation step. Why? What gas was evolved during this washing step? Write a balanced equation for the reaction..
The CO2 output of an astronaut is about 1.3 kg/day. What is the minimum mass of LiOH required for a six-day space shuttle flight involving five astronauts?
Using formal charges, draw the resonance form from among all the Lewis structures that is most important in describing BeCl2.
the catalyst reacts with the reactants. B. A catalyst initiates a chemical reaction. C. A catalyst lowers the activation energy of the reacting molecules
Many cold packs contain ammonium nitrate and water. The dissolving of ammonium nitrate is endothermic. Which of the following best describes the energy and entropy changes that occur for the ammonium nitrate system
Construct a Beer†TM s Law plot and determine concentration of a solution X. When a 1 ml sample of solution X was combined with 4 mL of distilled water it had an Absorbance of 0.19.
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