Answer the questions below, using LT (for is less than), GT (for is greater than), EQ (for is equal to), or MI (for more information required) in the blanks provided.
(a) The mass (to three significant figures) of 6.022 × 1023 atoms of Na __________ 23.0 g.
(b) Boron has two isotopes, B-10 (10.01 amu) and B-11 (11.01 amu). The abundance of B-10 _______ the abundance of B-11.
(c) If S-32 were assigned as the standard for expressing relative atomic masses and assigned an atomic mass of 10.00 amu, the atomic mass for H would be _______ 1.00 amu.
(d) When phosphine gas, PH3, is burned in oxygen, tetraphosphorus decaoxide and steam are formed. In the balanced equation (using smallest whole-number coefficients) for the reaction, the sum of the coefficients on the reactant side is _______ 7.
(e) The mass (in grams) of one mole of bromine molecules is _______ 79.90.
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