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Calculate the percent concentration of each of the following solutions:


a. 2.50 N sodium hydroxide solution (density = 1.25 g/)


b. 4.80 N potassium hydroxide solution (density= 1.30 g/ m/)


Make a program that will accept an integer and loop for the same number of times as that of the inputted integer and input random integers and add it to the array/list one by one, per line. Afterwards, make your program accept another random integer.





Using that final integer, compare from your array/list if the final integer's value is also present in your current array/list. If so, print "Present"; otherwise, print "None".





Start coding now!



Input



The first line contains the size of the array.


The next lines contain the integers.


The last line contains an integer to be searched.



5


3


21


2


5


23


2


Output



A line containing a string.



Present

A sample of oxygen at 44◦C occupies 373 mL.

If this sample later occupies 1102 mL at 60◦C

and 1.8 atm, what was its original pressure?

Answer in units of atm


Calculate the number of milliliters of solution required to provide the following:


a. 17.5 g of sulfuric acid from a 2.50 N solution in reactions that replace both hydrogen ions.


b. 24.2 g of calcium chloride from a 1.25 N solution in reactions that replace both chloride ions.


calculate the number of grams of solute necessary to prepare the following solutions:


a. 25.0 m/ of a 0.200 N sulfuric acid solution in reactions that replace both hydrogen ions.


b. 50.0 m/ of a 1.25 N phosphoric acid solution in reactions that replace all three hydrogen ions.


How many grams of magnesium hydroxide are there in 125 m/ of 3.50 N solution?

How many milliliters of 0.35 N sulfuric acid are necessary to react with 30.2 m/ of 0.52 N sodium hydroxide)


If 0.825 g of pure sodium hydroxide is titrated with 24.7 m/ of hydrochloric acid solution to a methyl orange end point, calculate the molarity and the percent by mass (density of solution= 1.02 g/ m/) of the hydrochloric acid solution.

Vinegar is a dilute solution of acetic acid. In the titration of 10.0 m/ of vinegar, 19.5 m/ of 4.20 M sodium hydroxide solution was required to neutralize tge vinegar to a phenolphthalein end point. Calculate the molarity and the percent by mass (densitu of solution= 1.01 g/ m/) of acetic acid in the vinegar.

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