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a) How many hydrogen bonds can each water molecule participate in?Illustrate your answer by drawing as many water molecules as isnescessary to support your answer and use dashed lines (----) toindicate the location of the hydrogen bonds.
b) The boiling point of water is 100 degree C and the boiling pointof the methane is -161 degree C, explain the difference.
Calculate the hydronium ion concentration and the pH after the addition of 0.25 mL of 0.10 M HCl to each one. What accounts for the difference in the hydronium ion concentrations
The half-life of 32P is 14.3 days. If you begin with 4.9 ?g (micrograms) of radioactive 32P in the form of Na2HPO4, what mass remains after 28.6 days (about one month)
The standard reduction potentials listed in any reference table are only valid at standard-state conditions of 25 C and 1 M. To calculate the cell potential at non-standard-state conditions, one uses the Nernst equation
What is the pH of the resulting solution when 25 mL of 0.10 M NaOH is added to 25 mL of 0.25 M HNO3?
Calculate the number of moles of H2O formed when 0.200 mole of Ba(OH)2 is treated with 0.500 mol of HClO3 according to the chemical reaction shown below.
Based on the steps occurring in an acid-base reaction, which definition of acids and bases is most practical
write a balanced equation for the reaction between the iodide ion, a peroxide, and the hydrogen ion.
if I have .42N NaOH and the stoiometry between Oxalic acid and Naoh is 1:2 then does that mean i do .42/.5=mol Oxalic acid * vol of titrations = molarity of oxalic acid
Calculate the standard free-energy change at 25 ^ \circ \rm C for the following reaction using the table in the introduction
The compound adrenaline contains 56.79% C, 6,56% H, 28.37% O, and 8.28% N by mass. What is the empirical formula for adrenaline?
Nickel nitrate and potassium carbonate react to form nickel carbonate and potassium nitrate. How many milliliters of 0.55M Ni(NO3)¬2 are needed to react with 85 mL of 0.25M K2CO3? First, write a balanced equation.
a sample was placed on a chromatography column. methylene chloride was used as the eluting solvent. no seperation of
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