A student adds a rectangular blocks of mass 26.10 g to graduated cylinder filled with 40.1 mL of water, the student read the new level of water to be 42.7 mL previously student measured the length, width and height of the block to be 3.0 cm by 1.0 cm by 1.0 cm

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

50.23 i believe is correct but don't quote me on that.