Chemistry · Foundation

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Evaporating to drynessRunning
Separation strip. Salt recovered at 22.1 g. Mass accounted for 254.08 g, Starting mass 240 g. Currently mass accounted for is over by 14.08 g.TUNING254.08 gSTARTING MASSMASS ACCOUNTED FOR22.1 G
t = 0.0s

Mass accounted for

254.08g

Starting mass

240g

22.1 g

Separation strip. Salt recovered at 22.1 g. Mass accounted for 254.08 g, Starting mass 240 g. Currently mass accounted for is over by 14.08 g.

What has to balancemsolution=msalt+mwaterm_{\text{solution}} = m_{\text{salt}} + m_{\text{water}}

What is happening

You arrive at a coastal school evaporating seawater on a windowsill.

The salt left in the dish has not been weighed. It started as 240 g of seawater, and 232 g of that left as vapour over the week.