Chemistry, 01.10.2019 23:20 ksiandua07
Patrick did an experiment to study the solubility of two substances. he poured 100 ml of water at 20 °c into each of two beakers labeled a and b. he put 60 g of substance a in the beaker labeled a and 60 g of substance b in the beaker labeled b. the solution in both beakers was stirred for 1 minute. the amount of substance left undissolved in the beakers was weighed. the experiment was repeated for different temperatures of water and the observations were recorded as shown. experimental observations substance mass of undissolved substance at different temperatures (gram) 20 °c 40 °c 60 °c 80 °c a 18 14 10 5 b 60 60 60 60 part 1: which, if any, substance is soluble in water? part 2: explain how the data you determine solubility for both substances for temperatures 20 °c to 80 °c
Answers: 2
Chemistry, 22.06.2019 04:30, clairajogriggsk
The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.
Answers: 1
Chemistry, 22.06.2019 12:10, kaitlynbernatz2778
If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?
Answers: 3
Patrick did an experiment to study the solubility of two substances. he poured 100 ml of water at 20...
Biology, 27.03.2021 22:40
English, 27.03.2021 22:40
Mathematics, 27.03.2021 22:40
Biology, 27.03.2021 22:40
Mathematics, 27.03.2021 22:40
Biology, 27.03.2021 22:40
History, 27.03.2021 22:40
Mathematics, 27.03.2021 22:40