[Borek]

can I use a measuring scale ir a kitchen scale to measure out 40g of solution?

Yes.

Or convert to volume (I gave you density) as it is much easier to measure given volume than given mass.

[Richeyyy]

thanks! Idk though, it really comes down to personal preferences, measuring mass has more of that chemistry vibe than measuring volume, still thanks a whole lot!

[Richeyyy]

Hey btw that concentration formula you've showed me before, it applies to solids only, but there isn't any info about percentage concentration definition if the solute is a gas. HCl is a gas dissolved in something

[Borek]

Hey btw that concentration formula you've showed me before, it applies to solids only

No, it is universal.

[Richeyyy]

Thanks! That solved the issue then:))