A sealed container holds 1.00 mole of helium and 2.00 moles of
nitrogen at 30.0 C. When the total pressure of the mixture is
666 mm Hg, what is the partial pressure of the nitrogen? Provide
an answer correct to 2 significant figures in mmHg. John takes 3
hours longer than Andrew to peel 500 lb of apples. If together
they can peel 500 lb of apples in 8 hours, then how longer would
it take each one working alone? If Kb for NX3 is 7.5 10 6, what
is the pOH of a 0.175 M aqueous solution of NX3? Write the
balanced equation of sodium oleate with HCl. Name the products
Rank the following species from least to great- est electron
affinity: F, Ge, S, As, Se. The total number of ions in a
solution prepared by dissolving 0.250 mol of (NH4)2CO3 in water
is __________. The correct method for preparing one liter of a
1.0 M solution of X is to dissolve exactly one mole of X in
exactly one liter of water. True or False? How many single bonds
are found in the lewis structure of CH3CH2CHO? to prepare the
minimum quantity of me