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Atoms of different elements also have different average masses, just like kernels and marbles. Use the mass values from a periodic table to answer the following questions. Please use the precision of the values in the periodic table link to determine the correct number of significant figures for your answer.
(a) What is the relative mass of one atom of B to one atom of N?
(b) What is the relative mass of one mole of B to one mole of N?
(c) What is the relative mass of 1.0 moles of Al to 1.0 moles of Rh?
A 25.00 mL portion of 0.100M Ag+ is added to a solution containing 0.0010 mole of Cl-. This solution is then titrated with 0.0500M SCN- to the end point. Calculate the volume of SCN- is required for the titration.
Ice floats on water. For most other substances however, the solid sinks in the liquid. Classify each of these statements as true for water, or true for most other substances.
Predict the magnetic susceptibilities (para- or diamagnetic) and determine the number of unpaired electrons of each of the following complexes (consider C2O42- and H2O as strong field ligands which cause a large splitting of the d-orbitals).
what is the relevance of half filled and completely filled orbitals in ionisation enthalphy ditermination.
Ammonia condenses to form a liquid at -33.35C at atmospheric pressure. The density of liquid ammonia at this temperature is 0.6818g/ml. If the ammonia (0.224ml) is condensed at these temperatures, what would be its volume?
What organic product(s) is formed when 1-methylcyclopentanol is heated in the presence of an acid catalyst?
Guesstimate the extent of the dipole moment of H 2 O in Debye units, treating H 2 O as three point charges. suppose the O-H distance = 1.00 A, angle H-O-H =104°. The
Calculate the pH of a solution that is prepared mixing 2.16 grams of propanoic acid (74.08 g/mol) and 0.56 grams of NaOH (40.00 g/mol) in enough water to make 100.0 mL
Magnesium sulfate, MgSO4, is added to 461 mL of 0.030 M sodium hydroxide, NaOH, until a precipitate just forms. How many grams of magnesium sulfate were added?
Calculate the concentrations of all species in a 1.75 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 8.00 g of sodium carbonate is mixed with one containing 4.75 g of silver nitrate.
Experiments have shown that the average frequency of chirping by a snowy tree cricket depends on temperature as shown below. Chirping Rate Temperature
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