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A 45.0-L steel tank at 20.0°C contains acetylene gas, C2H2, at a pressure of 1.39 atm. Assuming ideal behavior, how many grams of acetylene are in the tank?
A student found that her mixture was 15% NH4Cl, 20% NACL, and 75% SiO2. Assuming her calculations are correct, what did she most likely do incorrectly in her experiment?
A 530. g piece of copper tubing is heated to 89.5°C and placed in an insulated vessel containing 159 g of water at 22.8°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K
similarly, what happens if cellulose is reacted with maleic anhydride C4H2O3? Again, how is the cellulose molecule/structure altered and what are the reaction by-products?
Question about Half life problem, We are performing an experiment using half-life =4.5 x 10^3 days labeled phenylalanine in which the five atomic hydrogens are labeled.To perform the experiment
The molar solubility of MnCO3 is 4.2 x 10-6 M. What is Ksp for this compound?
Explain what it means that the atomic mass of naturally occurring Ag, is a mixture of its two isotopes forms, is 107.868 u.
What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0 degrees celsius to 40 degrees celsius?
calculate the molality, molarity, and mol fraction of HF in a solution made by dissolving 5.0g of HF in 250g of water
A protein contain the following amino acids 61 LYS 75 GLU 26 TYR 22 HIS 45 PRO 47 PHE 29 ARG 67 GLY 77 ASP 65 ALA 24 THR 25 MET 71 VAL 56 ILE 12 SER 83 LEU A) What is its net charge at pH 13
A 0.1946 g piece of magnesium metal is burned in a constant volume calorimeter that has a heat capacity of 1349 J/°C.
Calculate the wavelength of this emitted light. B) What wavelength range would you expect this complex to absorb most strongly. Explain.
Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a Hvap of 32 .1 kJ/mol.
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