Which method is best for separating most of a solid from a gas quickly? distillation filtration screening evaporation

The gaseous product of a reaction is collected in a 25.0-l container at 27 c. the pressure in the container is 300.0 kpa and the gas has a mass of 96.0 g. how many moles of the gas are in the container?

Describe each step in the phase change diagram when Ice from - 25 C changes to 135 C

An equilibrium mixture of the three gases in a 7.40 L container at 535 K contains 0.313 M PCl5, 0.119 M PCl3 and 0.119 M Cl2.

If the mass of a material is 91 grams and the volume of the material is 20 cm3, what would the density of the material be?

Place the following compounds in order of increasing strength of intermolecular forces. a. CH3CH3 CH3 (CH2) 8CH3 CH3CH2CH2CH3 b. CH3CH3 < CH3 (CH2) 8CH3 < CH3CH2CH2CH3 c. CH3CH2CH2CH3 < CH3CH3 < CH3 (CH2) 8CH3 d.

Which of the following does NOT describe acute exposure to hazardous materials? A. Determination of exposure is almost always after the fact. B. Long time period between exposure to an agent and the onset of symptoms. C.

Select the correct answer. In the graph, what effect would adding a catalyst have on D? A. It would decrease. B. It would increase. C. It would stay the same. D. You cannot tell from this graph.

Estimate the heat of neutralization of H3PO4 in kJ/mol given these dаta: Heat transferred = 2.5 x 102 J Moles of H3PO4 = 1.4 x 10-3 mol Moles of NaOH = 5.0 x 10-3 mol

Consider the elemts Ca, Ba, As, and Bi. Which has the ... largest radius? highest electronegativtity? Highest Ionization Energy?

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