How many moles of atoms are there in each of the following? (Hint: See Sample Problems C and D.)
a. 6.022 × 1023 atoms Ne
b. 3.011 × 1023 atoms Mg
c. 3.25 × 105 g Pb
d. 4.50 × 10-12 g O

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.