A $50\mathrm{.}0g$ thermometer is used to measure the

temperature of $150mL$ of water. The specific heat

of the thermometer, which is mostly glass, is $750$

$\frac{J}{kgK},$ and it reads $21\mathrm{.}0C$ while lying on the

table. After being completely immersed in the water,

the thermometer's reading stabilizes at $75\mathrm{.}1C.$

Part A

What was the actual water temperature before it was measured?

Express your answer with the appropriate units.

$T=$

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