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How many grams of commercial acetic acid (97% by mass) must be allowed to react with an excess of to produce 83 of acetyl chloride , if the reaction has a 81.2 yield?
How many moles of CF4 can be produced when 5.00 mol C react with 8.00 mol F2?
A 4.10 g nugget of pure gold absorbed 287 J of heat. The initial temperature was 24.0°C. What was the final temperature?
What is the pH of this buffer solution? (Neglect the volume change that occurs with addition of solid sodium nitrite) b.) Calculate the pH when 2.00 mL of 0.0275 M NaOH are added to 50.0 mL of buffer solution.
A student mixes 347 mL of water and 254 mL of 8.70 x 10-5 M greenfood dye solution. What is the concentration of this new dilute solution of green food dye?
Write an equation for the sequential hydroboration and H2O2/OH ¯ oxidation of 4-ethyl-3- heptene. Indicate the main monosubstitution products in each of the following reactions.
A 184-mg sample of Na2CO3 is dissolved in H2O to give 3.00L of solution. What is the concentration of Na+ in parts per million (ppm)?
Suppose that you are carrying out a dehydrohalogenation reaction on 2-bromo-2,3-dimethylpentane to yield alkenes
Then 40.0 mL of this solution were titrated with 0.060 M HClO4. Calculate the pH at the first equivalence point.
a balloon contains 0.76 mol N2, 0.18 mol O2, 0.031 mol He and 0.026mol H2 at 739 mmHg. what is the partial pressure of O2?
The surface area of the nail is 8.59 cm. The density of the zinc is 7.13 g/cm3 how many zinc atoms are used in the coating?
what is the quantity in grams of formic acid and sodium formate necessary to make 500 mL of a buffer that has a formic acid concentration of .75 M and a sodium formate concentration of .75 M?
A 93 gram solution of silver nitrate contains 16 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
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