Determine the numbers of grams of cuso4*h2o are required
Determine the numbers of grams of CuSO4*H2O are required to prepare the stock solution? A stock solution of approximately .09 M [Cu(NH)4]2+is prepared by dissolving a small quantity of CuSO4*5H2O in a small amount of water.
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Determine the numbers of grams of Pb(NO3)2 would you need to add to 75 mL of a 2.5 M NaCl solution to precipitate out all of the Cl-?
Calculate the maximum mass of K2O(s)that could be prepared from 8.04 g of K(s) and 2.28 g ofO2(g) if Potassium reacts with oxygen to make potassium oxide, K2O.
Suppose a spacecraft which can travel with a speed of 5 * 10^4 km/hr (a typical speed of a present day spacecraft), determine how long would it take to reach that latest planetary system?
A student is ice fishing in Colorado on the frozen lake over spring break. He cuts a circular hole in the ice which consists of a diameter of 0.50m. The ice on the lake is 0.50m thick. Determine the mass of the ice cut out to form the hole.
How many millions hectares of natural forests were lost during 1990's? How many millions hectares of natural forests existed in year 2000?
In order to find out whether or not driver's education course enhances the scores on driving exam, a sample of six students were given the exam before and after taking the course. The results are shown below.
An equilibrium mixture which is having N2O4, (P=0.26 atm) and NO2 (P=1.2atm) at 350 K. At the constant temperature the volume of the container is doubled.
Suppose that a 10-ml graduated cylinder (in which the volumes can be read to the nearest 0.1 ml) and a 100-ml graduated cylinder are available then how will you prepare the following solutions from 6.0M solutions of ammonia and acetic acid? G
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why does it seem unlikely that presidential authority would have significantly expanded to what it has become today?
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