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How is hydrogen bond different from an ionic or covanlent bond?
What happened when 6.0M HCl was added to the contents of the tube in 7a above?
oxygen gas is collected over water at 25 degrees C. The total pressure of the gas is 780.00 mm Hg. What is the partial pressure of the dry oxygen gas?
Liquids "flow" quickly as measured by the speed at which a small amount of liquid will spread itself out to form a puddle. What does this behavior imply about the speeds at which the individual liquid particles are moving relative to each other?
Determine the molarity of a solution of the weak acid HCl)2; Ka = 1.10*10^-2 if it has a ph of 1.25.
calculate the pH of 50 ml of .15 M HCHO2 with 75 mL of .13 M NaCHO2
when most Fe+3 salts are dissolved in dilute nitric acid, the solution is often yellow to orange in color. Why could you not visually detect these colors in the Fe(NO3)3 stock solution?
Which of the following bond moments would cancel the lone pair moment? S=O S-F N-H another lone pair Consider the molecules F2, OF2, PF3, CF4, and BF3. Which molecules have a dipole moment?
Explain what a hydrogen bond is and describe, on the molecular level, how a water and an alcohol molecule can hydrogen bond
Calculate the pH for each of the following cases in the titration of .50 mL of .150 M hypochlorous acid, HCLO(aq)
What is the heat change in J associated with 65 g of gaseous acetic acid at 127 oC changing to solid at -50 oC? c(acetic acid) (g) = 1.11 J/(g.K) c(acetic acid) (liq) = 2.18 J/(g.K) c(acetic acid) (s) = 1.32 J/ (g.K) ?Hfus(acetic acid) = 192 J/g ?..
A metal sulfide is 71.6% metal by mass. What is the mass fraction of the metal in the metal sulfide?
5.00 mL of water sample was titrated for hardness with 4.15mL of 0.0200M EDTA. write the equastion for the reaction and calcualte the hardness of the water in ppm
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