What is the molarity of he and n2
The Henry's law constant for helium gas in water at 30°C is 3.7 10-4 M/atm; that for N2 at 30°C is 6.0 10-4 M/atm. If the two gases are each present at 1.2 atm pressure, calculate the solubility of each gas.
What is the Molarity of He and N2.
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A cylinder with a moveable piston contains 0.93 of gas and has a volume of 344. What will its volume be if an additional 0.22 of gas is added to the cylinder? (Assume constant temperature and pressure.)
How many moles of are in the tube of toothpaste? How many fluoride atoms are in the tube of toothpaste? How many grams of sodium ion are in 2.10 toothpaste? How many molecules of triclosan are in the tube of toothpaste?
A sample containing 0.175 g of cl- is dissolved in 50 ml of deionized h2o. The solution is titrated to the equivalence point with a AgNO3 solution. The final volume of the titrated sample is 75 mL. What is the concentration of the AgNO3 solution.
Determine the factor of safety against overturning about point A if = 3 .The factor of safety is defined as the ratio of the stabilizing moment divided by the overturning moment.
A test on an 80 W fluorescent lamp circuit gave the ff. results when connected to a 50 Hz mains supply. Calculate the value of the power factor correction capacitor in microfarads (μF).
Calculate the solubility of zinc hydroxide, Zn(OH)2, in 1.00 M NaOH. Ksp = 3.0 × 10-16 for Zn(OH)2, Kf = 3.0 × 1015 for Zn(OH)42-
A pipeline terminates in a nozzle of outlet diameter = 0.15 m. The free jet from the nozzle is deflected through 120º by a vane as shown. Water flow rate through this pipe is 0.25 m3/s.
A 10.0L container of helium gas with a presure of 250mmHg at 0 degrees Celsius is heated to give a pressure of 1500mmHg. What is the temperature in degrees Celsius?
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