How many milliliters of a 9.0 M H2SO4 solution are needed to make 0.45 L of a 3.5 M solution?

What is the concentration of FeBr3 in a solution prepared by dissolving 10.0 g of FeBr3 in enough water to make 275 mL of solution?

What volume of a 0.540 M KOH solution contains 15.5 g of KOH?  

What Nevada prize fight(s) between an African American fighter and a white fighter was promoted by Goldfield publicists (including George Graham Rice) as a way to attract attention to Goldfield business interests? 

Which valvular condition is characterized by the valve opening being constricted, hardened, and narrowed, requiring increased energy to push blood through, and causing the valve leaflets, or cusps, to fail to open completely?

What innovations did Raymond I. “Pappy” Smith and Harold Smith bring to gambling in Reno?

What ethnic group from the Pyrenes Mountain region migrated in significant numbers to Nevada in the early 1900s?

Although not directly related to mining, a major Nevada town in Southern Nevada was founded in 1905. What is that town?

What Nevada mine promoter was famously arrested and charged with enormous fraud in the advertisement and sale of mining stocks? 

What facility came to Las Vegas in the World War II era that brought thousands of people to the Las Vegas area?