[BARAJAN]

hi guys
I want to calculate the volume of 8.3 mmol NH₂OH (50% aqueous solution) with density of 1.11 gr/Lit, I have calculated the volume as mentioned below am I right? 
M*8.3 mmol= 274.149 gr
d=M/V---> V=M/d--> V=24.698 μL
thanks for your help

[Borek]

Regardless of what M is, it is not OK.

So, what M is?

[BARAJAN]

Regardless of what M is, it is not OK.

So, what M is?

I meant yhe following equation

density=mass/volume
so M is mass

[Borek]

If M is mass, what is this meant to mean:

M*8.3 mmol= 274.149 gr

[BARAJAN]

If M is mass, what is this meant to mean:

M*8.3 mmol= 274.149 gr

thank you dear Borek for your kindly attention
sorry may be this is because of my week language skill, in the mentioned equation I replaced 33.03 (the molar mass of NH2OH) and I multiplied to 8.3 (my desired moles of NH2OH) and I assumed that I need 274.149 gr of NH2OH as the density of 50% aques solution of NH2OH was 1.11 gr/Lit I replaced the calculated mass 274.149 and the density 1.11 in the d=M/V and V= 24 Lit

[Borek]

So M means whatever you want it at a given moment. Don't be surprised you are confusing yourself and others, when you use the same symbol for different things in a single, short post.

8.3 is not a number of moles, but number of millimoles.