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Under constant pressure conditions, a sample of hydrogen gas initially at 88.0 degree C and 9.50 L is cooled until its final volume is 3.00L. what is its final temperature?
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2+ and 0.0400 M Ag+. What will be the concentration of Ca2+ when Ag2SO4 begins to precipitate
What is the typical effect of the addition of an interstitial element on the properties of a metal? A) Increased surface luster B) Increase in hardness and strength, decrease in ductility
What statement below best describes the graph representing the integrated 1st order rate law. plot of ln[a] vs t having a straight line negative slope equal to -k
a solution of ethanol c2h5oh in water is prepared by dissolving 72.0 ml of ethanol density 0.79 gcm3 in enough water
P4(s) + 6F2(g) --> 4PF3(g) How many grams of fluorine are needed to react with 6.20g of phosphorus?
Calculate the quantity of heat in calories release when 241.62 g of water is cooled from 80.6°C to 28.0°C.
acetylene gas c2h2 is produced by adding water to calcium carbide cac2cac2 2h2o gt c2h2 caoh2 .how many grams of
The quadratic formula is used to solve for x in expressions taking the form of a quadratic equation: ax2 bx c = 0, Solve for x in the following expression using the quadratic formula
this is a post lab question: you did not correct for the barometric pressure for the vapor pressure of water. what happens to your calculations
A sample of 54.7 g of HCl gas is dissolved to make 1L of solution. What is the molarity of the solution?
Calculate the volume of ammonia required to bring the pH to 3.00 and to 8.00. Kb (NH3) = 1.8 x 10^-5.
A 494 mL sample of hydrogen gas was collected over water at 25°C and a pressure of 753 torr. If the pressure of water vapor is 24.0 torr at 25.0°C, what mass of hydrogen gas (g) was collected? Do not enter units with your answer.
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