At what pressure in atm does ethane (C₂H₆) have a density of 37.2 g/L at 75.0 °C?
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Q: What volume in liters would 20.0 moles of sulfur dioxide occupy at 75.3 °C with a pressure of 2.40…
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At what pressure in atm does ethane (C₂H₆) have a density of 37.2 g/L at 75.0 °C?
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- A helium gas cylinder of the sort used to fill balloons has a volume of 0.180 m3 and a pressure of 150 X 105 Pa (150 atm) at 298 K (25 °C). How many moles of helium are in the tank? How many grams?For ferrocene (C10H10Fe) the enthalpy of sublimation is 73.2 kJ/mol and the entropy of sublimation is 243 J/mol.K. What is the sublimation temperature of ferrocene in degrees Celsius?How many moles of ions are in 1.75 mol of K2SO4?
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- What volume in liters would 20.0 moles of sulfur dioxide occupy at 75.3 °C with a pressure of 2.40 atm?To make up a solution of phosphate buffered saline (PBS), you need 10 mM Na2HPO4 (anhydrous) (FW: 141.96 g/mol), 3 M NaCl (FW: 58.44 g/mol), and 5mM KH2PO4 (FW: 136.09 g/mol). How many grams of each will you need to make up 850 mL of PBS?What is the total anion concentration (in mEq/L) of a solution that contains 5.0 mEq/L Na+ , 12.0 mEq/L Ca2+,and 2.0 mEq/L Li + ?
- What is the molarity of a NaOH solution if 48.0 mLneutralizes 35.0 mL of 0.144 M H2SO4?An unknown mixture is known to contain only Ba(OH)2 (MW=171.34 g/mole) and NaOH (MW=40.0 g/mole). If the mixture is known to contain 45% by mass NaOH, and 8.0 grams of the mixture is dissolved completely in 50.0 ml of solution, answer the following. c).If 10.0 ml of a 0.2 M solution of Na2SO4 was added to the 50.0 ml solution, what would be the final concentration of Na+ in solution.You are given a solution of 0.117 M NaOH solution. You need to neutralize 10.00 mL of the NaOH solution with an acid called KHP. The reaction is: KHP+ NaOH --> H2O + a salt If you are going to make up a KHP stock solution in a 100.00 mL Volumetric flask and use 14.137 mL of the KHP stock solution to neutralize the NaOH, what mass of KHP would you need to use? The molar mass of KHP is 204.22 g/mole