A1 L sample from Tempe Town lake has a pH of 3.57. Exhaust from cars on nearby highways often mixes with rain to form HNO3. use this information to answer the following questions.
1. what is the concentration of H+ ions in the sample?
2.if it took 80 ml of 1 M NaOH to neutralize 250 ml of the acidic solution, what is the
molarity of HNO3 in the sample?
3. How many moles of HNO3 are in the
solution?

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?