Strong base is dissolved in 755 mL of 0.200 M weak acid (a=4.82×10−5) to make a buffer with a pH of 4.01. Assume that the volume remains constant when the base is added.

Consider the two electron arrangements for neutral atoms a and b. are atoms a and b the same element? a - 1s2, 2s2, 2p6, 3s1 b - 1s2, 2s2, 2p6, 5s1

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone