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Acetylene (C2H2) can be produced from the reaction of calcium carbide (CaC2) with water. Draw the localized electron orbital model (hybridized orbital model) for the acetylide anion (C22-), showing ?, ?, and lone pair electron orbital.
The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name and origin imply, it stinks!
Which of the following isotopes is more likely to decay via positron emission rather than electron emission.
Calculate what will be the amount of heat, q, absorbed by the calorimeter apparatus also express your answer in kJ? (heat capacity = 2.677 x 103 J/K)
Suppose that a sample of gas occupies 192 mL of volume at 25C and a pressure of 206 torr. What would be the volume if the pressure were changed to 506 torr at 25C.
Calculate the mass of silver chloride required to plate 225 mg of pure silver.
Titration curve. Consider the titration curve of 10 mL of 0.1 M HA, Ka=1.0x 10^-4 with 0.1 M NaOH. Calculate the pH after 5, 10, and 15 mL of NaOH are added
Calculate the osmotic pressure of a 20% sucrose solution given that the molecular weight of sucrose is 342g.
A student is presented with a sample of an unknown substance and asked to classify the substance as organic or inorganic
NaOH is added to 625 mL of 0.250 M weak acid (Ka = 5.62 × 10-5). What is the pH of the resulting buffer?
The numbers indicate the relative amounts present at equilibrium, compared to 1-butene as the standard. 1-Butene: 1.0 cis-2-Butene: 7.2 Trans-2-Butene: 85 Explain this trend qualitively.
What is the value of the rate constant for the reaction? How much time will take the consentration to drop to one tenth of its initial value?
Consider a mixture of ingrediants at equilibrium for this reaction. 2 PH3 (g) P2 (g) + 3 H2 (g) Which of these is true if the container volume
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