Calculate the smallest number of ice cubes
Calculate the smallest number of ice cubes at 0oC, each containing one mole of water, initially at 20oC to 0oC necessary to cool the 500g of liquid water?
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What is the molarity of the KOH solution if 175 ml of KOH of unknown concentration with a methyl red indicator present is titrated with the 0.275 M]H3PO4, the yellow solution turns red after the 29.6 ml of the H3PO4 is added.
Determine the numbers of regions of high electron density does bromine pent fluoride have around the central atom? Discuss in details.
Suppose you have forgotten to add the boiling tones to your round bottomed distillation flask but the distillation is now in the progress. What should you do?
Determine the numbers of possible constitutional isomers can be produced from monochlorination of (S)-3-methylhexane using the Cl2/light?
The mean score of the college entrance test is 400; the standard deviation is 70. The scores are normally distributed. Determine the probability of selecting a student who scored above 300?
Estimate the total number of moles of sodium contained in the 3.6 g of sodium chloride and 5.6 g of sodium sulfate. How can enter the answers in scientific notation of the form 2.1E2?
Assume that it cost $100 to manufacture 50 pairs of mittes and $150 to manufacture 150 pairs of mittens. Write the quadratic cost equation. If there is no overhead [that is, if f(0)=0]
During pH of salt solution lab, discuss why the pH reading you are observing would be affected when the solutions are in contact with the air or when saturated with the air? Include chemical equation to support your answer.
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