A) The formaldehyde, CH2O, can be prepared from methanol, using a copper catalyst, according to the...
A) The formaldehyde, CH2O, can be prepared from methanol, using
a
copper catalyst, according to the following reaction:
CH3OH (g) → CH2O (g) + H2 (g)
If 25.7 g of CH2O (g) are produced for each mole of methanol that
reacts, calculate:
to. Theoretical performance
b. Real or experimental performance
c. Percent of yield
Experimental yield and percentage yield values are not given
B) A saturated solution of Mg (OH) 2 in contact with solid in
solution, is
present at 25 ° C. The pH of the solution is 10.17. Assume that Mg
(OH) 2 is
completely dissociates in water and that no other simultaneous
equilibrium occurs
involving Mg2 + ions or OH- in solution. Calculate the Ksp for
this
compound. Remember to do the dissociation reaction.
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A) The formaldehyde, CH2O, can be prepared from methanol, using
a
copper catalyst, according to the...
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WILL Submit All Questions Completed 5 out of 11. Save Answer KY mplete < Question 6 of 11 > Combining 0....
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can you help answer this question according to the two other pictures? Procedure: Measure and dispense...
can you help answer this question according to the two other
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2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
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1. (2 points) Silver ion, Ag+ (aq), oxidizes formaldehyde, CH2O(aq), to formic acid, HCOOH(aq). Write the balanced equation for this transformation in aqueous acidic solution. In your answer be sure to convert any H+(aq) that may be present to H30+ (aq) and to include states on all species. 2. (1point)At 25 °C the redox process Mn2+ (aq) + Mg(s) = Mn(s) + Mg2+ (aq) has the standard potential of Eºcell = +1.34 V. Calculate the equilibrium constant of this process...
WILL Submit All Questions Completed 5 out of 11. Save Answer KY mplete < Question 6 of 11 > Combining 0.318 mol Fe,O, with excess carbon produced 17.6 g Fe. mplete Fe, O,+3C-2 Fe +3 CO mplete What is the actual yield of iron in moles? mplete mplete actual yield: mol What is the theoretical yield of iron in moles? theoretical yield: mol What is the percent yield? % percent yield: privacy policy terms of use help contact us about...
can you help answer this question according to the two other
pictures?
Procedure: Measure and dispense 0.6 ml of a 4.4 M solution of sodium methoxide in methanol and of ethanol into a 5 mL reaction vial. Add 2.5 mmol of acetaminophen (-0.378. Set up for reflux in the rume hood and bring reaction to reflux for 15 minutes (solvent is boiling and vapors are condensing on condenser). After 15 minutes directly through the top of the condenser tube, carefully...
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2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
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PREPARATION OF PHARMACEUTICALS - Fischer Esterification
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Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
What is the theoretical yield (in grams) and percent yield of your
triphenylmethanol product in this experiment? (Weight of
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BACKGROUND AND THEORY The Grignard reaction was one of the first organometallic reactions discovered and is still one of the most useful synthetically. By reacting an organohalide (usually a bromide) with magnesium in ethereal solvent, carbon becomes a nucleophile. Grignard reagents are the starting points for the syntheses of many alkanes, primary, secondary, and tertiary alcohols, alkenes, and carboxylic...
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