Question

chem 1110 lab - pa (ver b)quiz 32/11/2026name isabel mansell1. how many atoms are in 1 mole of sodium metal? . (1 pt.)2. the piece of galvanized metal contain which 2 metals? (alumimum, sodium, zinc, lead, iron, potassium) ____ and ____ (1 pt)3. name of the acid used to remove zinc from the metal today. (1 pt)4. what is the name of agcl? (1 pt)5. how many moles of potassium 5.124 g of this metal? (molar mass = 39.098 g/mol)? (1 pt.). show your work.

Explanation:

Step1: Q1: Apply Avogadro's number

1 mole of any substance contains $6.022 \times 10^{23}$ atoms.

Step2: Q2: Identify galvanized metal core

Galvanized metal is steel (iron) coated in zinc.

Step3: Q3: Recall zinc-stripping acid

Hydrochloric acid reacts with zinc to remove it.

Step4: Q4: Name ionic compound AgCl

Ag = silver, Cl = chloride; combine as silver chloride.

Step5: Q5: Moles from mass formula

Use $\text{Moles} = \frac{\text{Mass}}{\text{Molar Mass}}$
$\text{Moles} = \frac{5.124\ \text{g}}{39.098\ \text{g/mol}}$

Step6: Q5: Calculate final value

$\text{Moles} \approx 0.1311$

Answer:

1. $6.022 \times 10^{23}$
2. iron, zinc
3. Hydrochloric acid
4. Silver chloride
5. 0.1311 moles