The molecule that can have an expanded octet is H3PO4.
An expanded octet refers to a situation in which a compound has more than the required number of valence electrons in its outermost shell. The required number of valence electron is 8 but a compound with an expanded octet can have up to 35 electrons in its outermost shell. An example of such a compound is H3PO4, which has 32 valence electrons in its outermost shell.
The mass of 0.05 mole of gold is 9.85 g
The mole of a substance is related to its mass and molar mass according to the following equation:
<h3>Mole = mass /molar mass</h3>
With the above formula, we can obtain the mass of gold. This can be obtained as follow:
Mole of gold = 0.05 mole
Molar mass of gold = 196.97 g/mol
<h3>Mole of gold =?</h3>
Mole = mass / molar mass
0.05 = mass / 196.97
Cross multiply
Mass = 0.05 × 196.97
<h3>Mass of gold = 9.85 g</h3>
Therefore, the mass of the gold is 9.85 g
Learn more: brainly.com/question/11038516
Answer:
Yes aluminum is reactive than copper
C. a measurement of the ability of an atom to attract an electron
