Explain whether two suspected compounds was identical
A compound melting at 134C was suspected to be either aspirin(mp 135C) or urea(mp 133C). Explain how can you determine whether one of these two suspected compounds was identical to the unknown compound without using any for of spectroscopy.
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One day, a person went to horse racing area, Instead of counting the number of human and horses, he instead counted 74 heads and 196 legs. Yet he knew the number of humans and horses there. How did he do it, and how many humans and horses are ther
Calculate the cost of the refecting pool including sales tax which is 6%Finally calculate the total cost of the refelcting pool and the surronding rose garden.
A basket contains 15 red numbered balls and 10 white numbered balls. A sample of five balls is selected. How many samples contain three red balls and two white balls? Explain your answer.
Two large containers A and B of the same size are filled with different fluids. The fluids in containers A and B are maintained at 0 C and 100 C, respectively.
A plot of land is a trapezoid whose bases have lengths 80m and 110m, and whose height is 50m. if a bag of seeds covers 50 square meters, how many bags are needed to cover this plot of land?
Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350-lb. mixture that is 12% protein?
The proposed Keystone Pipeline Project dramatically illustrates the interaction of private power, government, environmental impacts, and energy benefits. The following questions center on this critical environmental land use management conun
Question: Two people start from the same point. One walks east at 8 km/hr while the other walks north at 6 km/hr. How fast is the distance between the people changing after half an hour.
A fisherman in a small boat starts at the point (80, 60) and moves toward the buoy, which is located at (0, 0). Is the water under the boat getting deeper or shallower when he departs?
A 125ml flask and stopper have a mass of 79.310g. A 25.0ml sample of an unknown organic liquid is pipetted into the flask, and the flask, stopper, and liquid have a total mass of 97.010g . Find the density of the unknown liquid.
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