please answer below i have a question on something already asked

thanks

done

You just use M1V1 = M2V2 OR if you prefer, think of it as
0.2534 M x (50/250) = ??
You have diluted 0.2534 M solution by a factor of 50/250.

thanks

Sure, I'd be happy to assist you with your question. Could you please provide more details or clarify which question you are referring to?