You can read more on the molar concentration and how to calculate the number of moles for a solution below the form. 0.3 M b. Molarity(M) = w × 1000 / GMW × V where, w = given weight of the solute = 4g GMW = Gram Molecular Weight of the solute = 40g V = Volume of the solution in ml. Molar mass of NaOH = 39.99711 g/mol This compound is also known as Sodium Hydroxide.. Formula weight: g ... For example, if we want to prepare 500 mL of approximately 0.20 mol/L NaOH using solid NaOH. The difference between this and the starting point gives you the volume, and from this, you can calculate the molarity of the analyte using the equation above. Molar Concentration Calculator. Molarity. Complete any of the three fields to discover the fourth value! It is defined as the number of moles of solute dissolved in a liter of solution and formula is defined as (m/v) x (1/MW). For example, if there are 50 moles of NaOH in 500 liters of solution, it is a 0.1 molar NaOH solution. Since the concentration only needs to be known to two significant figures, the mass of NaOH and volume of solution do not need to be measured exactly. Molecular weight calculation: 22.98977 + 15.9994 + 1.00794 0.09 M O c.0.30 M O d. 0.090 M Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol. Answer to: Calculate the molarity of a solution consisting of 60.0 g of NaOH in 1.50 L of solution. Calculate the molarity of a solution of 3.6 g of NaOH in 300 mL of solution. Box 219 Batavia, IL 60510: Phone: 800-452-1261: Fax: 866-452-1436: Email: flinn@flinnsci.com Give us feedback about your experience with Molecular Weight Calculator. Molarity calculation is used in teaching, laboratory, study and research. To try the molarity calculator you can assume that you want to prepare a 1M NaOH solution, using 100% pure sodium hydroxide. Related: Molecular weights of amino acids: molecular weights calculated today The desired mass of NaOH is Select one: a. Calculate the molality and molarity of a solution made by mixing equal volumes of 30% by weight of H 2 S O 4 (density=1.20g/mL) and 70% by weight of H 2 S O 4 (density=1.60g/mL) View solution 1 1 7 grams of N a C l are dissolved in water to make 5 0 0 m L of solution. Let's recall some definitions: A solution is a mixture where the ratio of solute to solvent remains the same throughout the solution (a homogeneous mixture or mixture with uniform composition). Mass Molarity Calculator Inquiry. Here is the simple online molar concentration calculator to calculate the molarity substance which is expressed as mol/L. The molarity of a sodium hydroxide solution can be determined by dividing the amount of sodium hydroxide (in moles) present by the number of liters of the overall solution. 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