Procedure: "In a 125-mL Erlenmeyer flask containing a magnetic stirring bar, mix 0.05 mol of benzaldehyde with the theoretical quantity of acetone, and add one-half the mixture to a solution of 5 g of sodium hydroxide dissolved in 50 mL of water and 40 mL of ethanol at room temperature...
A sample of toothpaste was analyzed for its fluoride content by treating a 250 mg sample with an ionic strength buffer to extract F- followed by dilution to 100.0 mL. The potential reading with a fluoride ISE was +150.3 mV. After addition of 10.0 mL of a 50.0 ppm Fstandard, the potential...
Calculate the mass of 80% pure aluminium required to produce 9.65 kg of aluminium oxide.
A 3.6 g soil sample was treated with HClO4 and HF was distilled from the mixture. The HF distillate was then diluted to a volume of 50.0 mL. Measurement with a fluoride ISE resulted in a potential of +95 mV. Exactly 5.00 mL of 1 x 10-3 M F- standard was added to the 50.0 mL solution and the...
Identify the spectator ion(s) in the following reaction: Cu(OH)2(s) + 2H+(aq) + 2Cl (aq) ---> Cu2+(aq) + 2Cl (aq) + 2H2O(l) a. Cu2+ and Cl- b. H+ and Cl c. Cu(OH)2 d. Cl e. Cu2+
You are to prepare 250 grams of 7.00% sodium carbonate solution. How many grams of sodium carbonate and how many mL of water do you use?
Arrange the following in order of decreasing stability. A blank molecular orbital diagram (Part A 1 figure) has been provided to help you. Rank the fluorine species from most to least stable. To rank items as equivalent, overlap them. F2, F2+, F2-
is the boiling point of methylamine similar to, greater than, or less than that of methanol.
How many moles are present in 3.01x1023 molecules of chlorine
Compare and contrast an Electrolytic Cell and a Voltaic Cell.
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- 1. For organic chemistry, what is a concerted shift? How do things like acids or heat affect them? What other factors affect them?
2. Which of the following reactions is an acid-base neutralization reaction? Why are the rest of the answers incorrect?
- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
- D. Ca (OH)2 (aq) + 2HI (aq) --> CaI2(aq) + 2H2O (l)