Chemistry, 02.03.2020 17:00 lilie080202
In Part C of the experiment, you will need to prepare 60. mL of a solution that is 0.10 M in sodium hydrogen phosphate heptahydrate (Na2HPO4 · 7 H2O, MW = 268.1 g/mol) and 0.10 M in ascorbic acid (C6H8O6, MW = 176.1 g/mol). (a) How many grams of sodium hydrogen phosphate heptahydrate will you need? Report your answer to three significant figures. WebAssign will check your answer for the correct number of significant figures. g Na2HPO4 · 7 H2O
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Chemistry, 21.06.2019 18:00
Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.
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Which of the following statements is true about planck’s law
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Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
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Chemistry, 22.06.2019 14:00
The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.
Answers: 3
In Part C of the experiment, you will need to prepare 60. mL of a solution that is 0.10 M in sodium...
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