1. Calculate the joules of energy required to heat 454.3g of water from 5.4 °C to 98.6 °C. 2. What quantity of energy (in J and cal) is required to heat a piece of iron weighing 1.31 g from 25.0 C to 46.0 °C? 3. A 5.63g sample of solid gold is heated from 21.0 °C to 32.0 °C. How much energy, (in J and cal) is required?

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1. Calculate the joules of energy required to heat 454.3g of water from 5.4 °C to 98.6 °C.
2. What quantity of energy (in J and cal) is required to heat a piece of iron weighing 1.31 g from 25.0
C to 46.0 °C?
3. A 5.63g sample of solid gold is heated from 21.0 °C to 32.0 °C. How much energy, (in J and cal) is
required?
Transcribed Image Text:Check for Understanding (5 mins) 1. Calculate the joules of energy required to heat 454.3g of water from 5.4 °C to 98.6 °C. 2. What quantity of energy (in J and cal) is required to heat a piece of iron weighing 1.31 g from 25.0 C to 46.0 °C? 3. A 5.63g sample of solid gold is heated from 21.0 °C to 32.0 °C. How much energy, (in J and cal) is required?
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