Answer: m= 22.2 g Ne
Explanation: First find the moles of Ne using Ideal Gas Law and derive for n. So from PV= nRT the mole is derived as n = PV /RT
n = PV / RT
= 1 atm ( 25 L ) / 0.0821 L.atm /
mole.K ( 273 K )
= 1.11 moles Ne
Convert it to mass using the molar mass of Neon
1.11 moles Ne x 20 g Ne / 1 mole Ne
= 22.2 g Ne
Answer:
5.5 × 10²² formula units Al₂O₃
General Formulas and Concepts:
<u>Chemistry - Stoichiometry</u>
- Reading a Periodic Table
- Dimensional Analysis
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Explanation:
<u>Step 1: Define</u>
9.3 g Al₂O₃
<u>Step 2: Define conversions</u>
Avogadro's Number
Molar Mass of Al - 26.98 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of Al₂O₃ - 2(26.98) + 3(16.00) = 101.96 g/mol
<u>Step 3: Convert</u>
<u /> = 5.4928 × 10²² formula units Al₂O₃
<u>Step 4: Check</u>
<em>We are given 2 sig figs. Follow sig fig rules.</em>
5.4928 × 10²² formula units Al₂O₃ ≈ 5.5 × 10²² formula units Al₂O₃
Answer:
1 : the chance or possibility that something will develop and become real There is a potential for injury. 2 : an ability or quality that can lead to success or excellence : promise She has great potential as a musician.
Explanation:
Answer:
Mostly by DNA
Explanation:
DNA is the Blueprint of each individual.
A. You want to check the sleeping schedule of the animals including the time.