Hopkins & Allen has been out of business since 1916. Many of their revolvers were in .32 RIMFIRE Short. This is an obsolete cartridge- once every 10-20 years a manufacturer may produce a limited run of ammo. A few were made in caliber .32 S&W centerfire. Would suggest you have the gun examined by a smith to determine which cartridge, and the safety of the gun (It IS probably over 100 years old). 32 S&W centerfire is a common cartridge- .32 Rimfire is very scarce, and not likely to be found- Sorry.
NO2 is the molecular formula for NO2.
NO2+ is.
NO2 is the chemical formula for nitrous oxide.
Determine the molar mass of NO2 using the subscripts in the formula and the atomic weights in grams from the periodic table. 1 mole NO2 = (1 x 14.0067g N) + (2 x 15.9994g O) = 46.0055g NO2 Calculate the moles NO2 by dividing the given mass by the molar mass. 25.5g NO2 x (1mol NO2/46.0055g NO2) = 0.554mol NO2
No. NO2 Is Nitrogen Dioxide.
NO2 is a conjugate base.
nitrogen dioxide = NO2
The conjugate base of HNO2 is NO2-. When HNO2 loses a proton, it forms its conjugate base, nitrite ion (NO2-).
Gun shop, gun show, antique gun forum, or possibly Flayderman's Guide to Antique Firearms.
Nitrite: NO2-
Ga is Gallium and NO2 is the nitrite anion. Thus, Ga(NO2)3 is gallium nitrite.
Molar mass NO2 = 46.0 g/mole1.18 g NO2 x 1 mol NO2/46.0 g = 0.0257 moles NO2 (to 3 significant figures)