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If the reaction to produce ammonia from hydrogen and oxygen produces 2.52 g of ammonia at a percent yield of 46.5%, what is the theoretical yield for the reaction? 3 H2 (g) + N2 (g) ->  2 NH3 (g)

What is the molarity of acetate ions, C2H3O2–, if 4.34 g of strontium acetate, Sr(C2H3O2)2, is in a 190.0 mL solution? 

An argon laser is used in underwater communication in the ocean because salt water is transparent to the frequency of this laser.  The wavelength of the argon laser is 488 nm.  What is the energy of one photon of this light?

Which of the following statements is/are correct? (2, 2, 0, -) is a valid set of quantum numbers (3, 2, -1, +) is a valid set of quantum numbers (2, 1, 1, -) is an electron set for an electron in a 2p orbital

Identify each of the following compounds as a strong electrolyte, weak electrolyte, or non-electrolyte using the dropdown menu. 1.  NaBr is a [1] 2.  C6H12O6 is a [2] 3.  NH3 is a [3] 4.  HBrO4 is a [4]

A solution of AgNO3 is titrated with 33.48 mL of 0.02522 M CaCl2.  Which of the following statements are true?   no reaction happens silver chloride is a precipitate calcium nitrate is a precipitate   When the precipitate is dried and weighed, how much precipitate would there be?   0.2420 g 0.1210 g 0.1386 g  there is no precipitate

Which of the following electron configurations is/are correct? 1.  Ag: [Kr]5s24d9 2.  Cu:[Ar]4s13d10 3.  Mn:[Ar]4s23d5

Which of the following statements is/are correct?  ( 4, 3, -1, +) is a valid set of quantum numbers (3, 2, 0, -) is an electron set for an electron in a 3d orbital ( 1, 1, 0, +) is a valid set  of quantum numbers

What is the energy in joules of 3 moles of photons with a wavelength of 7.91 mm? 

What volume (mL) of 0.0315 M barium hydroxide (Ba(OH)2) is need to reach the equivalence point when you have 275.0 mL of 0.165 M  perchloric acid (HClO4)?