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a cylinder of compressed gas has a pressure of 4.882 atm on one day. the next day the same cylinder of gas has a pressure of 4.690 atm, and its temperature is 8 degrees celcius. what was the temperature on the previous day?
Calculate the density of propanol C3H8O if you know that there are 1.069×10 25 molecules of propanol in 1.35 L.
Use this information to compare how long it will take to obtain molecular scale mixing of such a gas over i) distance 1*10^-4 m and ii) 10m
Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
Estimate the average concentration of methylene chloride. Look up the TL V or the 1WA for methylene chloride and consider how the: evaporation might be performed.
The solubility product of PbBr2 is 8.9 X 10^(-6). Determine the molar solubility in the pure water.
Rapid Burning of Sugar Versus Its Stability Against Oxygen, Why is sugar stable under standard conditions.
A 15.00 mL sample of unknown concentration of sulfuric acid is precititated with excess lead(II) nitrate and a precipitate of lead(II) sulfate is collected.
Elements cannot be decomposed by chemical means, but can be decomposed by physical means.
During this reaction, P4 + 5O2 → P4O10, 0.800 moles of product was made in 15.0 seconds. What is the rate of reaction
43 kg person drinks 410. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work.
At a given temperature, the equilibrium constant K for the reaction 2SO2(g) + O2(g) 2SO3(g) is 3.0 × 109. If 2.80 mol of SO2 and 4.06 mol of O2 are placed in a 1.78-L container.
What is molarity of NaOH solution if 26.0ml of 0.380 M H2So4 solution is required to neutralize a 25.0ml sample of the NaOH solution
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