Determine the partial pressure of oxygen
A gaseous mixture of O2 and N2 contains 30.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 805 mmHg ?
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A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women. a)How many groups could be formed? b) which sex is in excess? By how much?
The solubility of O2(g) in water is 4.43 mg O2/100 g H20 at 20 degree Celsius when the gas pressure is maintained at 1 atm. What is the molarity of the saturated solution?
Show example of a standardization of a base NaOH USING PRIMARY STANDARD KHP show an example
Silver has two naturally occurring isotopes. Find the percent abundances of 107Ag and 109Ag given the atomic mass of Silver = 107.868 amu.
How many moles of HCl are required to react with 0.610 g of Al(OH)3 in the above unbalanced reaction? Use at least as many significant figures in your molar masses as in the data given.
What is the lewis dot structure for KNO3?
A .150 gram sample of solid lead(II) nitrate is added to 125 mL of .100 M sodium ... .100 M sodium iodide solution. Calculate the number of moles of each reactant? ....
Carbonyl stretching frequency of aliphatic carboxylic acids in dilute solution is located near 1770/cm. This frequency is much higher than the carbonyl frequency of these substances when measured neat (1720/cm). Also it is considerably higher tha
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