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What is the molarity of a 200 ml solution in which 0.2 mole of sodium bromide is dissolved?
Wiki User
∙ 10y ago
- 20.0 g = 20.0 (g) / 40.0 (g/mol) = 0.500 mol
- 200 mL = 200 (mL) / 1000 (mL/L) = 0.200 L
Finally:
molarity = 0.500 (mol) / 0.200 (L) = 2.50 mol/L
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoatomic weight of Na = 22.99 g/mole
atomic weight of Cl = 35.453 g/mole
molecular weight of NaCl = 58.445 g/mole
21.0 g/58.445g/mole = 0.359 moles NaCl
.359moles/.2litres =1.80M
Wiki User
∙ 10y agoMolarity (M) = mols/liters. In this case:
M = 2.0 moles / (.200) Liters = 10 Molar.
Wiki User
∙ 9y ago200 milliliters of a .5 M solution will contain .1 moles. 1 liter of a 2.0 M solution has 2 moles, so 50 milliliters of this 2 M solution will have .1 moles.
Wiki User
∙ 12y ago2.0 mol NaCl / 2.0 Litre = 2.0/2.0 = 1.0 mol/L = 1.0M NaCl
Wiki User
∙ 10y agoMolarity means moles per litre. Therefore you have to multiply by 5 in converting 200ml to a litre. 2*5 is 10 moles per litre.
Wiki User
∙ 10y agoMolarity (M) = mols/liters. In this case:
M = 0.2 moles / (.200) Liters = 1 Molar.
Wiki User
∙ 14y ago10M (nova net)
Wiki User
∙ 9y ago.13 (Plato)
Anonymous
0.20m
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4m
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Sodium bromide dissassociates into Na+ and Br- ions when it is dissolved in water.NaBr + H2O = Na+ and Br- aq.
Would it make a difference if calcium bromide solution is used rather than sodium bromide solution?
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When 80g of sodium hydroxide are dissolved in water to make 0.500 of a solution what is the molarity?
4m
What volume of 0.256 M sodium bromide contains 18.7 grams of sodium bromide?
From the definition of molarity, one liter of the stated solution contains 0.256 mole of sodium bromide. The gram formula weight of sodium bromide is 102.89; therefore, one liter of the solution contains 0.256 X 102.89 or 26.34 grams. 18.7/26.34 = 0.710, the fraction of a liter that contains 18.7 grams of sodium bromide.
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Sodium bromide dissolved in water equation?
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well the calcium bromide solution is less soluble than the sodium bromide..... but the lab has nothing to do with the solubility; so i believe it shouldn't make a difference.
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In chemistry, the concentration of a substance in solution is determined by molarity, which is symbolized by "M". This indicates the number of moles of a substance dissolved in one liter of a solvent (usually water). For example: - 1 mole of sodium chloride = 58 grams - If 116 grams of sodium chloride are dissolved in 1 liter of water, then that solution is a 2-molar (2 M) solution of sodium chloride. - If 232 grams of sodium chloride are dissolved in 1 liter of water, then that solution is a 4-molar (4 M) solution of sodium chloride.
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