a)
Interpretation:Purity of sample with melting point
Concept introduction: Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
b)
Interpretation:Purity of sample with melting point
Concept introduction: Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
c)
Interpretation:Purity of sample with melting point
Concept introduction: Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
d)
Interpretation:Purity of sample with melting point
Concept introduction: Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
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Chapter 3 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- Cloth can be waterproofed by coating it with a silicone layer. This is done by exposing the cloth to (CH3)2SiCl2 vapor. The silicon compound reacts with OH groups on the doth to form a waterproofing film (density = 1.0 g/cm3) of [(CH3)2SiO]n, where n is a large integer number. n (CH3)2SiCl2 + 2n OH 2n Cl + n H2O + [(CH3)2SiO]n The coating is added layer by layer, with each layer of [(CH3)2SiO]n being 0.60 nm thick. Suppose you want to waterproof a piece of doth that is 3.00 square meters, and you want 250 layers of waterproofing compound on the cloth. What mass of (CH3)2SiCl2 do you need?arrow_forward1. As an analyst, you were asked to determine the Ca content of the dolomite samples from Manila Bay using gravimetry. According to the steps in a typical quantitative analysis, enumerate your strategy on how to conduct the analysis.arrow_forwardexplain how mixed melting point determination can be used to identify a solid compound.arrow_forward
- Show complete solution, and units involved. Express the final answer up to 3 decimal placesarrow_forwardCeramics used as abrasives must be hard and tough and be able to withstand high temperatures that arise from frictional forces. What is the minimum required hardness (measure in Mohs scale) for a material to be used as abrasive? Your answerarrow_forwardAn analyst conducted suction filtration for a certain 3.0 gram of solid. After filtration, the weight of the collected powder was 2.8 grams. Calculate the recovery efficiency of the sample.arrow_forward
- Give the advantages of using steam distillation in the recovery of an inorganic liquid from a mixture.arrow_forwardWhich of the following methods is not an appropriate method for purifying a solid under normal laboratory conditions? sublimation Ochromatography distillation recrystallizationarrow_forwardGive me handwritten answer only?arrow_forward
- Suppose the metallic paper clips (which contain iron) had been replaced by magnesium or nickel. Would using a magnet as a method of separation have worked?arrow_forwardR5 in the experiement for extraction of copper sulphate from impregnated vermiculite. what would be the reason for there being less than a gram in the difference between initial mass and final mass when it should be 7/8 g in the differencearrow_forwardStatement 1: The melting points of metallic solids vary over a large range.Statement 2: The hardness of metallic solids varies from quite soft to quite hard. Statement 1 and Satetment 2 are both TRUE. Statement 1 is TRUE but Statement 2 is FALSE. Statement 1 is FALSE but Statement 2 is TRUE. Statement 1 and Satetment 2 are both FALSE.arrow_forward
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