How many atoms of aluminium are contained in 2.75 mol
1 answer:
<h3>
Answer:</h3>
1.66 × 10²⁴ atoms Al
<h3>
General Formulas and Concepts:</h3>
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Chemistry</u>
<u>Atomic Structure</u>
- Reading a Periodic Table
- Moles
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<u>Stoichiometry</u>
- Using Dimensional Analysis
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
[Given] 2.75 mol Al
[Solve] atoms Al
<u>Step 2: Identify Conversions</u>
Avogadro's Number
<u>Step 3: Convert</u>
- [DA] Set up:
- [DA] Multiply [Cancel out units]:
<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
1.65605 × 10²⁴ atoms Al ≈ 1.66 × 10²⁴ atoms Al
You might be interested in
Answer:
A: non-vertebrate
Explanation:
Hopefully this helps!
Answer: I think it’s C
Explanation:
Answer:
please mark me as brainliest
Answer:
70 g NaCl at 20 °C Supersaturated.
Answer:
all living things
Explanation: