Final answer:
To heat water from 25°C to 50°C with 2825 J of energy, the mass of water needed is approximately 266.54 g.
Step-by-step explanation:
To calculate the mass of water that can be heated from 25 degrees Celsius to 50 degrees Celsius by the addition of 2825 J, we can use the equation Q = mcΔT, where Q is the heat energy, m is the mass of the water, c is the specific heat capacity of water, and ΔT is the change in temperature.
We know that ΔT = 50°C - 25°C = 25°C, and c is approximately 4.18 J/g°C for water.
Plugging the values into the equation, we have 2825 J = m * 4.18 J/g°C * 25°C.
Simplifying the equation, we find that the mass of water is approximately 266.54 g.