There are 1.65 × 10^(-7) g S in 3.01 × 10^15 atoms S.
<em>Step 1</em>. Use Avogadro’s number to convert <em>atoms of S to moles of S</em>
Moles of S = 3.01 × 10^15 atoms S × (1 mol S/6.022 × 10^23 atoms S)
= 5.148 × 10^(-9) mol S
<em>Step 2</em>. Use the molar mass of S to convert <em>moles of S to grams of S
</em>
Mass of S = 5.148 × 10^(-9) mol S × (32.06 g S/1 mol S) = 1.65 × 10^(-7) g S
Answer:
D. a relatively small fraction of the maximum number of possible hydronium ions.
Explanation:
A weak acid is an acid that is partially dissociated into its ions in an aqueous solution or water. A weak acid is one that does not dissociate completely in solution; this means that a weak acid does not donate all of its hydrogen ions (H+) in a solution
It is produced when an Arrhenius acid dissolves in water. So a weak acid would form a relatively small fraction of the maximum number of possible hydronium ions while in contrast a strong acid would form a relatively large fraction of the maximum number of possible hydronium ions.
<h3>
Answer:</h3>
The equation is; P₁V₁/T₁ = P₂V₂/T₂
<h3>
Explanation:</h3>
Concept being tested: Combined gas law
We need to know the two gas laws that form the combined gas law
- The combined gas laws is derived from the Boyle's gas law and Charles's law.
- According to Boyle's law;
P₁V₁ = P₂V₂
- On the other hard, according to Charles's law;
V₁/T₁= V₂/T₂
- The combine gas laws combines both Boyle's law and Charles's law.
- According to the combined gas law, the volume of a fixed mass of a gas i inversely proportional to pressure and directly proportional to its absolute temperature.
- Therefore, combining both Boyle's law and Charles's law, we get;
P₁V₁/T₁ = P₂V₂/T₂
- Thus, based on Combined gas law, then
P₁V₁/T₁ = P₂V₂/T₂
Answer:
Fe(OH)2 + 2HCl ---> FeCl2 + 2H2O
I think
