comeonmanim
26.07.2020 •
Chemistry
1.- A solution is prepared by mixing 45 grams of NaCl with 135 grams of water. a) Determine the% mass / mass of the solution
DATA:
Solute:
Solvent:
Solution:
b) How many grams of NaCl are in 890 g of solution?
2.- Caffeine is an organic compound of the alkaloid family and we can find it in coffee and tea, among other plants. A coffee maker indicates on the product label than in one serving (one teaspoon) of dough 1.8 g of hay 0.07 g of caffeine. What is the percentage by mass of caffeine in soluble coffee?
DATA:
Solute:
Solvent:
Solution:
Solved
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Ответ:
Solute:BA
Solvent:13g
Solution: Do your work
Ответ:
The uneven heating causes temperature differences, which in turn cause air currents (wind) to develop, which then move heat from where there is more heat (higher temperatures) to where there is less heat (lower temperatures).
Explanation: