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Two engineers are calculating the molecular weight of a gas mixture containing oxygen and other gases. One of them uses the correct molecular weight (32) for oxygen, and determines the average molecular weight as 39.2. The other uses an incorrect value (16) and determines the average molecular weight as 32.8. This is the only error in the calculation. What is the percent of oxygen in the mixture expressed as mole %
Consider the chemical species IF5 and IF4+
What is the concentration (in M) of the nitrate ion when 18.4 mL of a 0.744 M solution of sodium nitrate is combined with 15.9 mL of a 0.734 M solution of copper(II) nitrate? Assume the volumes are additive.
What mass (in grams) of solid KCl would need to be added to 500 grams of water to make an ideal solution with a boiling point of 106.8
Does your result agree with the measured overall rate law expression? If not, under what conditions would agreement be observed?
Write the balanced formula unit equation for the reaction of magnesium with hydrochloric acid. What is the sum of the coefficients? Don't forget coefficients of one
Beryllium was first isolated as a relatively pure metal when investigators heated solid beryllium chloride with solid potassium.
the xy-plane and the C-atom skeleton lies on the x axis, what is the hybridization of C for the right-side CH2 group?
What is the precipitate that forms when aqueous ammonium sulfide reacts with aqueous copper (II) nitrate
Propane is often used for gas grills and is typically purchased by filling a propane tank with 20 pounds of propane. What is the enthalpy change when 18 pound of propane is burned?
The two molecules have the same molecular geometry but different electron pair geometries. The two molecules have different electron pair geometries. The two molecules have the same electron pair geometry but different molecular geometries.
The following compounds, listed with their boiling points, are liquid at -10 degrees celsius: butane, -0.5 degrees celsius: ethanol, 78.3 degrees celsius: toluene, 110.6 degrees celsius.
What volumes of CO2 and NH3 at 201 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?
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