chemistry

posted by .

When 5 grams of salt is dissolved in 95 grams of water the temperature of the solution increases 10°C how much heat is evolved the heat capacity of the solution is 1.1 cal/g°C

  • chemistry -

    Total mass of solution = 5 + 95 = 100 grams
    Recall that the formula for calculating the heat absorbed or released is given by
    Q = mc(T2 - T1)
    where
    m = mass
    c = specific heat capacity
    (T2 - T1) = change in Temperature
    Substituting,
    Q = 100 * 1.1 * 10
    Q = 1100 cal

    Hope this helps :3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    when pure sodium hydroxide is dissolved in water , heat is evolved in a laboratory experiment measure a molar heat of solution of sodium hydroxide the following procedure was followed. to a calorimeter containing 300g of water at 20.0 …
  2. chemistry

    Can you check what I did below? On the first problem, I am not sure if I am suppose to add a negative to the first part of the heat loss of water like so -[C(sp)m(w)deltaT(w)]. On the second problem, part(a), I am not sure if I am
  3. ap chemistry

    A sample of KOH is dissolved into 100.0 grams of water in a coffee cup calorimeter. if the dissolution produces 6.45 kJ of heat and the temperature change is 25.4 degrees celcius to 40.0 degrees celcius, how much KOH (in grams) is …
  4. chemistry

    How much heat energy in KJ is evolved by a reaction in a calorimeter in which the temperature of the calorimeter and water increases from 20.91 degrees C to 26.45 degrees C?
  5. Chemistry

    When pure sulfuric acid is dissolved in water,heat is evolved.To a calorimeter containing 300g of water at 20degree C,10.65g of sulfuric acid also added at the same temperature.The change in temperature,which was monitored by a digital …
  6. Chemistry

    If 1.22 grams of magnesium reacts with 100 ml of 6.02 M HCl solution. How much heat is evolved?
  7. Science

    I have a solid dissolved in water, both the same temp, and when it's put in the temperature drops. I have the heat capacity it of the solution, and need to the molar heat of the solution of the solid that was dissolved. Right now I've …
  8. Chemistry

    A generic solid, X, has a molar mass of 77.7 g/mol. In a constant-pressure calorimeter, 31.2 g of X is dissolved in 289 g of water at 23.00 °C. The temperature of the resulting solution rises to 24.40 °C. Assume the solution has …
  9. soran university

    1. Which salt is LEAST soluble at 0 ºC? 2. How many grams of sodium nitrate, NaNO3, are soluble in 100 g of water at 10 ºC?
  10. College Chemistry

    Suppose 15.0 grams of solid sodium hydroxide solid at 20.5 oC is dropped into 120 grams of water in a container that has a heat capacity of 10.0 J/oC, temperature also 20.5 oC. A solution that has a density of 1.04 g/mL forms at a …

More Similar Questions