Chemistry, 14.05.2021 23:50 mathisawsome123
Student A and Student B were analyzing the data obtained in the preparation of four solutions. The four solutions where prepared by dissolving the same amount (2.0 g) of ethanol, C2H5OH, in:
100 g of water (Solution #1),
200 g of water (Solution #2),
300 g of water (Solution #3), and
400 g of water (Solution #4).
The most concentrated solution is:
Solution #1
Solution #2
Solution #3
Solution #4
all are equally dilute
Answers: 2
Chemistry, 22.06.2019 07:30
Identify two types of chemical bonding in the source of dietary potassium
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Chemistry, 22.06.2019 08:00
Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in clโ. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42โ. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the clโ ion. its concentration is half that of the clโ ion. its concentration is twice that of the clโ ion. its concentration is one-third that of the clโ ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback
Answers: 3
Chemistry, 22.06.2019 10:00
Part 1: include important facts found through your research. part 2: include your visual display. include your summary of โthe chemistry of waterโ from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.
Answers: 1
Chemistry, 23.06.2019 01:30
Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?
Answers: 1
Student A and Student B were analyzing the data obtained in the preparation of four solutions. The f...
Social Studies, 21.01.2020 23:31
Chemistry, 21.01.2020 23:31