Standard 6c Students know how to calculate the concentration of a solute in terms of grams per liter, molarity, parts per million, and percent composition
Crossword
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The number of moles of solute per liter of solution.
5.
If 10.5 g of
CaCl2 is dissolved in enough water to make 400.0 mL of solution, what is the molar concentration of
Cl- ions in molarity -M? (use 3 sig figs)
7.
175.32 g NaCl is dissolved into water creating a one liter solution. What is the molarity of the solution? (Use M for molar and round to 2 sig figs. No spaces.)
9.
The number of moles of solute in 2 L or 0.5 M solution.
Down:
1.
Can be described in terms of grams per liter, molarity (moles per liter), parts per million (ppm), and percent [(weight of
solute/weight of solution)x100)].
2.
The number of moles of solute contained in 3 liters of a 2-molar solution.
4.
The mass percent of a solution made by dissolving 5.0 g of
MgCl2 in 50.0 g of water? (2 sig figs)
6.
The concentration of a solution in parts per million (ppm) of a 3.1% solution is _________________. Include the comma and PPM in your answer.
8.
A student used an oxygen meter to measure the concentration of oxygen in a smaple of stream water and got these results: 10.1 mg/L, 10.3 mg/L, 9.8 mg/L, 9.9 mg/L, 10.2 mg/L. The best explanation as to why it was necessary for the student to take several readings was to ensure that the readings were _______.