Methods for determining percentage

Employer
[no-member:pro]Aleksandr[/no-member:pro]
Project parameters
Type of cooperationOne-time project
SectionEducation and consulting
Prepaymentwithout prepayment
Payment methodsBank transfer
Acceptance of requestsfrom Dec 31, 2024 until Jan 10, 2025
Project description
Offering extra earnings. It is required to find a method for determining the percentage of sodium aluminate in the washing liquid (NaOH)