Answer to Question #182117 in General Chemistry for Lauren Barad

General Chemistry

Question #182117

What mass of liquid water can be heated from freezing to boiling with 42 kJ of energy, if the specific heat of water is 4.2 J g^-1 ^oC^-1?

Expert's answer

H= mcΔt

m= H/cΔt

= 42000/(4.2×100) = 100g

Learn more about our help with Assignments: Chemistry

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. A sample of Cu with a mass 3.3g is cooled from 53.0oC to 28.4oC If the specific heat of Cu is 0.4 J
2. How many grams of water can be frozen at 0oC with the removal of -129.8 J? (Specific Heat = 4.2 �
3. How many grams of water can be boiled at 100oC with the application of 23,455.7 J? (Specific Heat =
4. What mass of magnesium will react with excess hydrochloric acid to produce 500. mL of hydrogen gas a
5. How many joules are released when 2.4 g H2O at 0.0oC solidify? (Specific Heat = 4.2 J/goC, Enthalpy
6. An unknown metal sample with a mass of 9.2 g is heated to a temperature 52oC, and dropped into 18.8g
7. Two students perform an experiment to determine the molar enthalpy of sucrose (C12H22O11, molar mass