What you are given
- Protocol mass (mg): 159.6
- MW the protocol assumes (g/mol): 159.6
- MW of the form you have (g/mol): 249.68
Formula: m_have = m_protocol · MW_have / MW_protocol
Solutions
How do you calculate hydrate mass adjuster?
Protocol assumes one hydrate, you have another? Get the corrected mass. The relationship used is m_have = m_protocol · MW_have / MW_protocol.
Worked example
Every number below is computed by the calculator, not typed in
The working
- Moles:
m_protocol / MW_protocol=1 mmol - Adjusted mass:
m_protocol · MW_have / MW_protocol=249.68 mg
Weigh 249.68 mg of the form you have.
Try it yourself
Two problems, with the working revealed
Problem 1 Hydrate mass adjuster
Work out the result for hydrate mass adjuster.
- Protocol mass (mg): 150
- MW the protocol assumes (g/mol): 159.6
- MW of the form you have (g/mol): 249.68
Show the answer and the working
Weigh 234.662 mg of the form you have.
- Moles:
m_protocol / MW_protocol=0.94 mmol - Adjusted mass:
m_protocol · MW_have / MW_protocol=234.662 mg
Open this in the calculator to change the numbers.
Problem 2 Hydrate mass adjuster
Work out the result for hydrate mass adjuster.
- Protocol mass (mg): 750
- MW the protocol assumes (g/mol): 159.6
- MW of the form you have (g/mol): 249.68
Show the answer and the working
Weigh 1173.308 mg of the form you have.
- Moles:
m_protocol / MW_protocol=4.699 mmol - Adjusted mass:
m_protocol · MW_have / MW_protocol=1173.308 mg
Open this in the calculator to change the numbers.
Do it with your own numbers.
The Hydrate mass adjuster calculator is free, shows every step, flags the hazards, and works offline once loaded. No account, no signup.
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