Reaction of methyl benzoate with \(\displaystyle{H}_{{2}}{S}{O}_{{4}}\)

Question

asked 2021-04-11

Why does methyl benzoate dissolve in concentrated sulfuricacid. Write an equation showing the ions that are produced

asked 2021-05-22

Sheila is in Ms. Cai's class . She noticed that the graph of the perimeter for the "dented square" in problem 3-61 was a line . "I wonder what the graph of its area looks like ," she said to her teammates .

a. Write an equation for the area of the "dented square" if xx represents the length of the large square and yy represents the area of the square.

b. On graph paper , graph the rule you found for the area in part (a). Why does a 1stâˆ’quadrant graph make sense for this situation? Are there other values of xx that cannot work in this situation? Be sure to include an indication of this on your graph, as necessary.

c. Explain to Sheila what the graph of the area looks like.

d. Use the graph to approximate xx when the area of the shape is 20 square units.

a. Write an equation for the area of the "dented square" if xx represents the length of the large square and yy represents the area of the square.

b. On graph paper , graph the rule you found for the area in part (a). Why does a 1stâˆ’quadrant graph make sense for this situation? Are there other values of xx that cannot work in this situation? Be sure to include an indication of this on your graph, as necessary.

c. Explain to Sheila what the graph of the area looks like.

d. Use the graph to approximate xx when the area of the shape is 20 square units.

asked 2021-04-06

The ksp value of radium sulfate \(\displaystyle{R}{a}{S}{O}_{{{4}}}\) is \(\displaystyle{4.2}\times{10}^{{-{11}}}\). If 25 mg of radium sulfate is placed in1.00x102mL of water, does all of it dissolve? if not howmuch dissolves?

asked 2021-03-26

Your can dissolve an aluminum soft drink can in an(aq) base such as potassium hydroxide.

\(\displaystyle{2}{A}{l}{\left({s}\right)}+{2}{K}{O}{H}{\left({a}{q}\right)}+{6}{H}_{{2}}{O}\to{2}{K}{A}{l}{\left({O}{H}\right)}_{{4}}{\left({a}{q}\right)}+{3}{H}_{{2}}{\left({g}\right)}\)

If you place 2.05 g of alumimum in a beaker with 185 mL of 1.35 M KOH, will any aluminum remain(show all calculations). What mass of \(\displaystyle{K}{A}{l}{\left({O}{H}\right)}_{{4}}\) is produced?

\(\displaystyle{2}{A}{l}{\left({s}\right)}+{2}{K}{O}{H}{\left({a}{q}\right)}+{6}{H}_{{2}}{O}\to{2}{K}{A}{l}{\left({O}{H}\right)}_{{4}}{\left({a}{q}\right)}+{3}{H}_{{2}}{\left({g}\right)}\)

If you place 2.05 g of alumimum in a beaker with 185 mL of 1.35 M KOH, will any aluminum remain(show all calculations). What mass of \(\displaystyle{K}{A}{l}{\left({O}{H}\right)}_{{4}}\) is produced?