Concentration Calculator and Concentration Converter for Calculating Concentration and Solution Preparation -- e-Tools Age

Concentration Calculator and Concentration Converter

The converter allows the user to convert between different ways of expressing concentration involving mass percentage,mass concentration(m/V), volume-volume percentage, molarity, normality, ppm, ppb and ppt.It can be used in the preparation of the solution for chemical analysis, food testing, etc and applies to medicine, agriculture, chemical industry and food industry.


Concentration Calculator and Converter

I want to convert...		Pre-input parameter	To
		The solution density The density of solute Valence Solved formula
	Convert from			Convert to
	Concentration of solution			concentration of solution Changes in the concentration of solution
	The amount of solution			The amount of solution
	The amount of solute			The amount of solute

Examples for solution preparation: 1.Calculate the weight of MgCl2.6H2O needed to prepare 200ml of 1M MgCl2 solution. Concentration specified on the left : Choose molarity from concentration list, then enter 1 in the concentration of solution field, enter 0.2 in The amount of solution field; Concentration specified on the right :Choose mass-volume percentage from concentration list; Pre-input parameter: Enter MgCl2.6H2O in solved formula field, click the "Calculate" button on the right of solved formula field to get the molar mass of MgCl2.6H2O; Click the "Calculate" button at the bottom of this box, then 40.65996 gram in the amount of solute field on the right is the weigh of MgCl2.6H2O needed. 2.How can I prepare 200ml of 75% v/v ethanol from 95% v/v ethanol? Concentration specified on the left: Choose mass-volume percentage from concentration list, then enter 75 in the concentration of solution field, enter 0.2 in The amount of solution field; Concentration specified on the right: Choose mass-volume percentage from concentration list, then click checkbox to change in the concentration of solution, enter 75 in the concentration of solution field; Click the "Calculate" button at the bottom of this box, then 0.157894737L in the amount of solution field on the right is the volume of 95% v/v ethanol needed. 3.How can I prepare 1.0×103mL of 0.1mol/L HCl from 37% w/w HCl? The density of 37% w/w HCl is 1.19g/mL. 1) The first step is to convert the 37% w/w HCl to molarity(see example above), that is 12.07595mol/L; 2) Choose molarity from concentration list on the left , then enter 0.1 in the concentration of solution field, enter 1 in the amount of solution field,click checkbox on tne right to change in the concentration of solution; Click the "Calculate" button at the bottom of this box, then 0.008280922L in the amount of solution field on the right is the volume of 37% w/w HCl needed.
Mass percentage and densities of common solution Substance Formula Mass percentage(%) Density
glacial acetic acid CH3COOH 99.5 1.050 methanoic acid HCOOH 90 1.200 hydrochloric acid HCl 10 1.050 nitric acid HNO3 71 1.420 nitric acid HNO3 61 1.370 perchloric acid HClO3 60 1.540 sulphuric acid H2SO4 96 1.840 potassium hydroxide KOH 50 1.520 sodium hydroxide NaOH 50 1.530 ethanoic acid CH3COOH 36 1.045 hydrochloric acid HCl 36 1.180 nitric acid HNO3 67 1.400 perchloric acid HClO3 70 1.670 phosphoric acid H2PO4 85 1.700 ammonium hydroxide NH4OH 28 0.898 potassium hydroxide KOH 10 1.090 sodium hydroxide NaOH 10 1.110

Top Use:

Mass-volume percentage to Molarity

Recent user inquiry:

10/29/2025 22:29Mass concentration(m/V) to Volume-volume percentage
10/29/2025 22:03Volume-volume percentage to Molarity
10/29/2025 21:48Parts per million(ppm) to Parts per billion(ppb)
10/29/2025 21:31Molarity to Molarity
10/29/2025 21:21Mass percentage to Parts per million(ppm)

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