Chemistry, 30.03.2020 20:27 Lovelybunny321
Instead of using ratios for back titrations we can also use molarities, if our solutions are standardized. A 0.196 g sample of antacid containing an unknown amount of triprotic base Al(OH)3 was reacted with 25.0mL of 0.111M HCl. The resulting solution was then titrated with 11.05mL of 0.132M NaOH solution. Calculate the mass percent of Al(OH)3 in the antacid sample.
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Chemistry, 22.06.2019 22:30, wpatskiteh7203
Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.
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Chemistry, 23.06.2019 04:40, twinchristiansp4xhd2
6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity
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Chemistry, 23.06.2019 06:50, isabellainksow87vn
The student repeated the experiment using a higher concentration of acid. the same volume of acid and the same mass of magnesium ribbon were used. what volume of hydrogen gas would have been produced after 60 seconds?
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Instead of using ratios for back titrations we can also use molarities, if our solutions are standar...
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