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A refrigeration tank holding 5.00L Freon gas (C2Cl2F4) at 25C and 3.00atm pressure developed a leak. While the leak was discovered and repaired, the tank had lost 76.0 g of the gas. Explain what was the pressure of the gas remaining in the tank at 25C?
The answer to formula and calculation, survey of physical chemistry, State all of the assumptions (e.g. ideal gas etc). (previous reaction is 2H??2(g) + O2(g) ----> 2H2O(g))
calculate the molarity of an nh3 solution made up of 37.5 g of nh3 in 70.0 g of water. the density of the solution is
If the anhydrous compound (AC) in the preceeding problem has a molar mass of 160g/mol, what are the water crystallization (X) and formula for the hydrate
If it is Ionic, mention which is the cation and which is the anion. Discuss how the ions formed (gaining or losing electrons and how many). If it is covalent, discuss where the covalent bonds are and draw the structure.
The larger ring of protonated caffeine is aromatic. show the structure of the dication and explain why it is aromatic.
Diamonds are measured in carats where 1 carat= 0.200 g. The density of diamond is 3.51 g/cm^3. What is the volume of a 2.50-carat diamond
a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees celsius was placed in 38.6 grams of water in a
What percentage of tablets contain contain more than the standard amount of 250 mg acetaminophen per tablet? The mean value is 244.53mg and the standard deviation value is 11.88
What product is formed when 5-chloro-1-methylcyclohexene is reduced with a Pt catalyst and H2? a) 1-chloro-5-methylcyclohexane b) 1-chloro-3-methylcyclohexane c) 5-chloro-1-methylcyclohexane d) 3-chloro-1-methylcyclohexane e) None of the above
A baseball is 150g and thrown at 100miles/hour with the same uncertainity. Determine the uncertainity in its position. The uncertainity was set at 1% in the previous problem not sure if it matters pertain to this problem.
Molecular Geometry The molecular geometry of a molecule describes the three-dimensional shape of just the atoms. This is in contrast to the electronic geometry, which describes the shape of all electron regions.
10.0 mL of a 0.30 M sodium phosphate solution reacts with 20.0 mL of a 0.20 M lead(II) nitrate solution (assume no volume change).
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