A calorimeter has a mass of 100 g and a specific heat capacity of 0.42 J g-1 K -1
. Into it
are put 60 cm3
of 0.25 mol dm-3
hydrochloric acid and 50 cm3
of 0.25 mol dm-3
potassium hydroxide solutions at the same temperature. The temperature of the
calorimeter and content rises by 5.0 K. Specific heat capacity of the solution = 4.2 J g1 K
-1
. Calculate the standard enthalpy of neutralization

43.452

step-by-step explanation:

284 times .153 = 43.452

the atomic mass is the bottom number on the element.

-steel jelly

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.