When preparing 1000ml 0.2mol /L hydrochloric acid solution, take 36.5%(1.19g/mol) of concentrated hydrochloric acid in milliliters When preparing 1000ml 0.2mol / L hydrochloric acid solution, take 36.5%(1.19 g/mol) of concentrated hydrochloric acid in milliliters

When preparing 1000ml 0.2mol /L hydrochloric acid solution, take 36.5%(1.19g/mol) of concentrated hydrochloric acid in milliliters When preparing 1000ml 0.2mol / L hydrochloric acid solution, take 36.5%(1.19 g/mol) of concentrated hydrochloric acid in milliliters

According to the law of conservation of mass.
1000Ml 0.2mol / L hydrochloric acid solution contains 0.2 mol hydrochloric acid.
If you need concentrated hydrochloric acid as xml, the molecular weight of HCl is 36.5g/mol, your 1.19 should be 1.19g/cm3 density, and the mass fraction is 0.365.
1.19*X*0.365/36.5=0.2
X =16.8 ml

How to prepare 1000ml hydrochloric acid (0.2mol/L) solution? Anhydrous sodium carbonate,36-37% concentrated hydrochloric acid, with a relative density of 1.18 g/cm3, is available. How to prepare 1000ml hydrochloric acid (0.2mol/L) solution? Anhydrous sodium carbonate,36-37% concentrated hydrochloric acid, with a relative density of 1.18 g/cm3 is available.

There is no need for sodium carbonate. Just add water to the concentrated hydrochloric acid.
HCl 7.3g,0.2mol. in 1000ml hydrochloric acid (0.2mol/L) solution
36% Concentrated hydrochloric acid density =1.19g/cm^3
Mass concentration of substance =1000* mass percentage * density/mol mass of solute =1000*36%*1.19/36.5=11.7 mol/L
0.2Mol/(11.7mol/L)=0.01709L =17.1ml
The specific method is as follows: take 17.1 ml of 36% concentrated hydrochloric acid in the dosage cylinder,
Add distilled water and dilute to 1 L.
Sodium carbonate is misleading.