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In concentration of Aqueous solutions find mass fraction and Mole Fraction using the volume fraction of 0.8629, Specific Gravity of solute of 0.4040 and molecular weight of solute of 59.00



In concentration of aqueous solutions find mass fraction and mole fraction using volume fraction of 0.8629 specific gravity of .4040 and MW solute of 59.00
Mass Frac Vol Frac Mol Frac Sp. Gr.solute MWsolute
(a) 0.8629 (b) 0.4040 59.00

How many grams of H₂ can be formed from 89.0 grams of NH₃ in the following reaction?

2 NH₃(g) → 3 H₂ (g) + N₂ (g)


Lysine, an essential amino acid in the human body, contains C, H, O, and N. In one experiment, the complete combustion of 2.175 g of lysine gave 3.94 g CO2 and 1.89 g H2O. In a separate experiment, 1.873 g of lysine gave 0.436 g NH3. (a) Calculate the empirical formula of lysine. (b) The approximate molar mass of lysine is 150 g. What is the molecular formula of the compound?


What isotope has 3 neutrons, 1 proton and 0 electron

Explain how to make one liter of a 1.25 molal sodium hydroxide solution


Calculate the entropy change for 200.0 g of N2 gas that is compressed from a pressure of 0.715
atm to a pressure of 1.16 atm at a constant temperature of 30.0
Write down the full electronic configurations for the ions

(a)Os2+

(b) At–.

Combustion analysis of a hydrocarbon produced 33.01g of CO2

and 5.41 g of H2O



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