Mass calculations in mass spectrometry

[@j0e721]

Shocked to open a chemistry video and see greg doucette teaching me

[@calciferhall9440]

can anyone tell me why there's error between website calculation and hand calculation? When both methods calculated, there is no charge. So this "error" is just used for mentioning that small difference can be detected by MS?

[@calciferhall9440]

10:00 LOL, so funny

[@shadeedsalem]

You are so knowledgeable and funny