If 2.0 L of 0.500 M solutions of NH3 is completely used up in a reaction with O2, how many grams of oxygen is needed? Molar mass of O2 is 31.998 g/mol A. 21.3 g
B. 48.0 g
C. 76.0 g
D. 192 g

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How many peaks will be present in a mass spectrum for brcl?

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.