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Draw a molecule of NH2Cl and a molecule of H2O. Indicate the type and location of the strongest intermolecular force of attraction between the two molecules.
magnesium sulphate MgSO4 has an observed osmotic pressure =7.6 atm at the temperature of twenty five degree celsius. Determine the observed van't Hoff factor?
Nitrogen (80 kPa), oxygen (21.0 kPa), carbon dioxide (0.03 kPa), and water vapor (2.0 kPa) are the usual atmospheric components. What is the total atmospheric pressure in kPa.
explain why the vitamin tablet is crushed before titrating with the iodate titrant.
What mole ratio of sodium acetate to acetic acid, pKa = 4.74, should be used in preparing a buffer solution having a pH of 4.35
In a certain experiement, 4.6 g Al is reacted with excess oxygen and 6.8 g of product is obtained according to this reaction: 4 Al + 3 O2 --> 2 Al2O3 What is the theoretical yield for this reaction
which is the stronger acid HCL or HBR and which is the stronger base Cl or Br?
Using a solution of (HOC 2 H 2 )3NHCl, solution in which Kb, ((HOC 2 H 2 )3N) = 5.9 × 10 -7 then determine what is the pH of a 0.010 M triethanolammonium chloride,
Chromium crystallizes in a body-centered cubic lattice (the Cr atoms are at the lattice points only). If the density of the metal is 7.19 g/cm3, what is the unit cell edge length in pm?
Calculate the mass of the solvent (CCl4) in kg. Use the molality calculated in question 2 and the solvent mass calculated in question 3 to determine the number of moles of solute present in this solution.
What is the HCl concentration if 69.7 mL of 0.350 M NaOH is required to titrate a 30.0 mL sample of the acid?
Acetic acid, CH3CO2H, is made industrially, by the reaction of methanol and carbon monoxide. If you produce 1.00L of acetic acid (d= 1.044 g/mL) by this reaction, how much energy as heat is evolved.
how much energy is released when 89 grams of water vapor (steam) is cooled from 503 K to 354 K?
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