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salt, NaCl, has a solubility of 35-7g per 100g of water at 0 degree celsius. The solubility of salt in water does not vary appreciably with temperature. NaCl is an electrolyte that commonly used to melt ice by lowering its melting point. what is the lowest possible melting point for ice that could be obtained considering the solubility of NaCl in water? The Kf for H2O is 1-86 degree C/m.
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).
Write and equation for the reaction of Ba+ with CrO4 2-. Using the eqution you have written, explain how the addition of HCl shifts the equilibrium of the reaction
If 25.0g of sodium peroxide(Na2O2, MW = 78.0g/mol) is reacted with 12.1g of water (H2O, MW = 18.0 g/mol) according to the following thermochemical equation: What quantity of heat is released?
what is the rate law? b) calculate the value of the rate constant c)calculate the initial rate for an experiment when both I- and OCl- are initially present at 0.15 mol/L
The equilibrium constant Kp is measured (at an unspecified temperature) to be 0.66 for the reaction:
How much energy is needed to heat 69.0 grams of H20(s) by 24.0 celcius if specific heat is 2.087 J(g celcius)
how many no. of hydrogen ions are present in 10 millionth part of 1.33 cc of pure water at 25 degree celsius.
in patients with glucose-6-phosphate dehydrogenase deficiency, rd blood cells are lysed while other cells remain intact.which statement best explains this: hemoglobin is a catalyst in the production of reactive oxygen species making RBCs especially..
When a metal was exposed to light at a frequency of 4.54× 10^15 s-1, electrons were emitted with a kinetic energy of 3.10 × 10^-19 J.
When isobutylene (CH3 - C=CH2) is treated with acid, two products result: 2, 4, 4-trimethyl-2-pentene and 2,4,4-trimethyl-1-pentene
What was the temperature change of the metal? C) Calculate the specific heat and the atomic mass of the metal. What is the metal?
A 2+ ion of a particular element has an atomic mass of 203 and 123 neutrons in its nucleus, a) what is the nuclear charge in this element. Why? b) what are the symbol and name of this element? How do you know?
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