A 134.0 g sample of an unknown metal is heated to 91.0⁰C and then placed in 125 g of water at 25.0⁰C. The final temperature of the water is measured at 31.0⁰C. Calculate the specific heat capacity of the unknown metal. Specific Heat of water is 4.18 J/g*C pls answer as quickly as possible

Explanation:

Hello,

In this case, since the following equation relates heat, mass, specific heat and temperature:

For the two substances, we say that the heat lost by the metal equals the heat gained by the water, thus we have:

Thus, the specific heat of the metal turns out:

Therefore, we obtain:

Best regards.

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

the link still does not work even when adding it to the url bar

explanation: