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A list of compiled anhydrous masses for Na2CO3, CaSO4, and MgSO4 and I have to find the molar ratio of these anhydrous masses. ( the compiled list is from every section of chemistry, so I have different masses for different dates for each of the anhydrates) Please help and try to explain as best as possible. Id really appreciate it! (ps--> I have my set of information for NA2co3 from doing it in lab so I have like the weight of the crucible and the mass of MY anhydrite's molar mass, would this be of use?)
Choose one of the iron-sulfur electron transfer proteins described in the text. Please draw the structure of the iron-sulfur active site, indicating the amino acids tethering the FeS core to the protein
Suppose a solution contains 0.25 M Pb2 and 0.49 M Al3 . Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2
Describe two independent methods for determining the atomic mass of an element. Explain how these method are truly independent.
Water cannot be used as a solvent for the Maleic anhydride + 1,3 cyclopentadiene because. so far all i have got is that anhydrides react toward water, and use dry reagents/apparatus. For a better yield of the cycloadduct.
2Al(s)+2KOH(aq)+6H2)-->2KAl(OH)4(aq)+3H2(g) If you place 2.05 g of aluminum in a beaker with 185 ml of 1.35 M KOH, will any aluminum reamin. What mass of KAl(OH)4 will be produced
What is the minimum wavelength of light needed to break the C-C bond? Could UV lamps be used to break the C-C bond?
Menthol is a crystalline substance with a peppermint taste and odor. When 0.705 g of menthol is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 3.76 °C.
2.9 mol Fe(OH)3 and 7.7 mol H2SO4 react according to the equation 2 Fe(OH)3 + 3H2SO4 ->Fe2(SO4)3 + 6H2O. If the limiting reactant is Fe(OH)3, calculate the amount of Fe2(SO4)3 formed.
How would the addition of sodium chloride affect the hydrated cobalt(II) ion equilibrium? Explain using Le Chatelier's principle
How many valence electrons are there in a Cr atom, Which of the following 1M solutions will have the highest concentration of ions
The procedure calls for cautions addition of water to the reaction mixture while it is still hot. What purpose does the addition of water serve and why should the addition be done while the reaction mixture is hot? Provide an equation for the reac..
The first ionization energy of bismuth is Ei1 = +703 kJ / mol. What is the longest possible wavelength of light that could ionize an atom of bismuth?
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