1.3% by mass per volume is said mass of solute contained in the solution 100 volume units (units of mass and volume must comply. Such as grams per cubic centimeter (g / cm3) kg per cubic เดติ meters (kg / dm3), such as glucose solution concentration of 20 screw by mass per volume). Mean in aqueous solution 100 cm3 has screw coast melted in the 20 grams or solution 100 DM3 has screw coast melted in the 20 kilograms this method commonly used to tell a solid solution in the liquid.2. Mol parodies (mol / L) or moles per liter (mol / dm3) this unit is often use abbreviations. "M" (from the Molar) this น่วยน tells, that in solution is a mole Such a solution NaOH concentrated 0.1 Mol / dm3 (0.1 M).Means in the solution NaOH 1 DM3 have NaOH melted in the 0.1 mole3. Mol / kg or molal (mol / kg or molal) this unit is often use abbreviations that. "M" as units of intensity ข้นท telling knowing in melt 1 kg solute, how many moles Such as urea solution in water, concentrated 1 mol / kg or 1 mol / kg or 1 m means of urea 1 mol dissolves in water 1 kg.
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