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1.) You want to fill a balloon to its maximum fill (6.00 L), if the balloon is at STP, how many grams of helium would you put in the balloon?
2.) Calculate the density, of a mixture of gases that has an average molar mass of 26.7 g/mol at a temp of 32.1 Celsius and 678 mmHg
3.) Consider the following reaction that was run at STP, if 200.0 mL of nitrogen are reacted with 150.0 mL of oxygen what is the maximum number of grams of NO2 that could be produced?
___N+___O--> __NO
Calculate the fraction of methyl isonitrile molecules that have an energy of 160.0 kJ or greater at 510k and 514 k. What is the ratio of the fraction at 514 k to that at 510 k.
You obtain the following six measurements for the mass of water delivered by a special calibrated volumetric pipette: 1.180 g, 1.185 g, 1.181 g, 1.173 g, 1.182 g, and 1.181 g. determine the mean and confidence interval of these measurements at a c..
what is the corresponding pressure difference between points A and B, in mmHg. At which point (A or B) is the pressure higher, and why? The temperature is 60 °F throughout
28.98 mL of a 0.1962 mol/L EDTA solution is required to titrate a sample to the equivalence point. How many moles of divalent metal cations were in your sample?
Which of the following statements about ethylene and polyethylene is true?
A compound is found to contain 64.80 % carbon, 13.62 % hydrogen, and 21.58 % oxygen by weight. What is the empirical formula for this compound
gasohol is a mixture of 90 gasoline and 10 ethanolch3 ch2 oh. ethanol is considered anenviornmentally friendly fuel
during an acid-base titration 23.3 ml of hcl completely neutralized 19.5 ml of potassium hydroxide 0.315 m. calculate
Determine the number of moles of P4O10 required to produce 4.70 moles of phosphoric acid.
What two conditions are considered when determining whether a molecule is polar or non-polar? What is the rule when using polar and non-polar solvents?
Determine the osmotic pressure of a solution that contains 0.010 g of a hydrocarbon solute (molar mass = 340 g/mol) dissolved in benzene to make a 350-mL solution. The temperature is 20.0°C.
the soil test report show the following data cec 15
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