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Question - A 2.50 g sample of barium reacted completely with water. What is the equation for the reaction? How many milliliters of dry H2 evolved at 21oC and 748 mmHg?
Please illustrate work as well as walk me during the problem so that I can follow and understand it
A reaction vessel contains 13.9g of CO and 13.9g of O2. How many grams of CO2 could be produced according to the following reaction. 2CO + O2 ---> 2CO2
is the melting of wax a physical or chemical change? from the mass measurement only the mass of the candle at 0 minute
if you started a ride with ice packs that held 1600g of frozen water at 0 degree celius and the temperature of the
What would be the concentrations of acetic acid and sodium acetate in this solution. Would we expect this solution to be a buffer
Titration of the lead and zinc in this aliquot required 34.06 mL of the EDTA solution. Finally, cyanide was used to mask the copper and the zinc in a 25.00 mL aliquot. Titration of the lead required 26.68 mL of the EDTA solution. Determine the com..
caffeine is about 10 times as soluble in hot water as in cold water a chemist puts hot water extract of caffeine in to
Estimate the temperature above which this reaction is spontaneous. DS0 = 16.1 J/K. CH4(g) + N2(g) + 163.8 kJ ® HCN(g) + NH3(g)
The vapor pressure of a liquid chloroform, CHCl3, is 400.0 torr at 24.1 c and 100.0 torr at -6.3C , what is Hvap of chloroform
An empty 2.0 L soda bottle is tightly capped at 25 degrees C and 732 mmHg. If the bottle is heated to 100 degrees C what is the pressure in the bottle
How many grams of propane must be burned to provide the heat needed to melt a 75.0-g piece of bromine (at its melting point) and bring the resulting liquid to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the followin..
calculate the ph of a buffer solution that is 0.12 m lactic acid hc3h5o3and 0.1 m sodium lactate nac3h5o5. ka for
Which one of the following is NOT one of the five gaseous components in highest concentration in the atmosphere
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