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Molarity WS. 1. What is concentration? 2. What is a dilute solution? 3. What is a concentrated solution? 4. Write the equation for calculating molarity. Calculate the molarites of the following solutions: 2.30 moles of NaCl (sodium chloride) in 0.450 L of water. 1.82 …
molarity from density formula

[DOC File]Calculations
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Density is usually expressed as g/mL; the density of water being 1.0 g/mL. If we were to calculate the molarity of water (this is a favourite for calculations assignments) the strategy would be as follows: Density of water = 1 g/mL = 1 000 g/L. The molecular weight of water is 18. Therefore the Molarity = 1 000/18 mol/L = 55.5 M.
molality to molarity using density

[DOC File]Concentration Review Worksheet
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When solving this problem, you’ll need to calculate that there are 27.72 grams of methanol (from the density), which is equal to 0.866 mol. a) What is the molarity of methanol in this solution? (The density of. methanol is 0.792 g/mL) 3.15 M (0.866 mol/0.275 L) b) What is the percent by volume of methanol in this solution? 12.7% ( (35 mL/275 ...
molarity to molality with density

[DOC File]Concentration Worksheet
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3) The density of ethanol is 0.789 g/mL. How many grams of ethanol should be mixed with 225 mL of water to make a 4.5% (v/v) mixture? 4) Explain how to make at least one liter of a 1.25 molal ammonium hydroxide solution. 5) What is the molarity of a solution in which 0.45 grams of sodium nitrate are dissolved in 265 mL of solution.
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[DOC File]Determining the Molarity of a Saturated Solution
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What is the relationship between temperature and the molarity of a saturated NaCl solution? Phosphoric acid is usually obtained as an 87.0% (by mass) phosphoric acid solution. If it is 13.0 M, what is the density of this solution? What is its molality? An aqueous solution of hydrofluoric acid is 30.0% HF, by mass, and has a density of 1.101 g cm-3.
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[DOC File]Chapter 13 worksheet #1
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(You will need the density of water.) Consider a 0.300 M solution of NaOH? Calculate the molality of NaOH. (Assume the density of the solution is the same as the density of pure water.) Notice that the molality is a little bigger than molarity. Why are these two numbers similar and why is molality always greater than molarity?
calculate density from molecular weight

Calculating molarity from density