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Many people think salt is added to water to increase the boiling poing so pasta will cook faster. How much salt would be needed to be added to 4L of water to raise the boiling point by 5 degrees celcius?
Predict the reactivity, state at room temperature and relative sizes of the following elements: (make a chart organize your information) Barium, Potassium, Chlorine, Oxygen, Iodine, Iron, Neon, Radon.
What is the molarity of a solution if 4.50 g NaF is dissolved in enough water to make 250.0 mL of solution?
The equivalence point of the titration occurs at 23.74mL . Determine the molar mass of the unknown acid.
The overall Kf for the complex ion Ag(NH3)2+ is 1.7x10^7. Ksp for AgI is 1.5x10-16. What is the molar solubility of AgI in an aqueous NH3 solution (Kb=1.8x10-5) with a pH of 12
The land area of Greenland is 840,000 mi2 with 132,000 mi2 free of ice. The average thickness of ice is 5000 ft. The density of the ice is 0.917 g/ml. Calculate the mass of ice in tons
Write the formula for the ion formed when each of the following elements loses its valence electrons?
Give the expected ground-state electron configurations for atoms with the following atomic numbers. Z=55
draw two lewis structures for cl2o7 one with a chlorine-chlorine bond and one with a cl-o-cl arrangement of atoms.
An electrochemical cell is constructed in which one half-cell contains AgN03 solution in contact with an Ag strip, and the other half-cell contains magnesium nitrate solution, Mg(N03h, in contact with a Mg strip.
water can react with an acid or a base to produce two different products. draw the structure of each and label products
For CH2CBr2, which geometric isomers do you suppose is energetically most stable; containing less repulsion energy: cis or trans
determine volume it would have if it reaches an altitude where the temperature = -33 0C , pressure = 0.65 atm?
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