Answer:Good
Explanation:can't complain.
Mass of Aluminum = 157.5 g
<h3>Further explanation</h3>
Given
17.5 g of Hydrogen
Required
Mass of Aluminum
Solution
Reaction
2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂
mol Hydrogen :
= mass : molar mass
= 17.5 g : 2 g/mol
= 8.75
From the equation, mol Al :
= 2/3 x mol H₂
= 2/3 x 8.75
= 5.83
Mass Al :
= 5.83 x 27 g/mol
= 157.5 g
Answer: Ionic Compound
Explanation:
An ionic compound is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element or the metal and the element which accepts the electrons is known as electronegative element or non metal.
A covalent compound is formed when an element shares its valence electron with another element. This bond is formed between two non metals.
Mercury flouride contain ionic bonds as it is made up of mercury metal and fllourine non metal.
Answer is: <span>number of grams of oxygen present in a sample is </span>37,41 g.
m(S) = 50 g.
mass percentage (S) = 57,20 % = 0,572.
mass percentage (O) = 100% - 57,20%
mass percentage(O) = 42,8% = 0,428.
m(O) = ?.
make proportion 57,20% : 42,8% = 50 g : m(O)
57,2% · m(O) = 42,8% · 50 g.
m(O) = 42,8% · 50 g ÷ 57,2%.
m(O) = 37,41 g.