How many protons [or, more accurately, hydronium ions (H3O+)] are there in a spherical lysosome that is about 0.6 µm in diameter and maintains an interior pH of about 5.0? Recall that the volume of a sphere of radius r is calculated as V = 4/3 × π × r3, and that pH = –log [H+]. Avogadro’s constant is approximately 6 × 1023 molecules/mole A. About 7,000,000 ions B. About 700 ions C. About 7,000 ions D. About 70,000 ions E. About 700,000 ions 0

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 :

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante