Explain why magnesium hydroxide has the formula Mg(OH)2
2 answers:
You might be interested in
<h3>Answer:</h3>
2.999 mol Br
<h3>General Formulas and Concepts:</h3><u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
- Left to Right
<u>Chemistry</u>
<u>Atomic Structure</u>
- Using Dimensional Analysis
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<u>Step 1: Define</u>
1.806 × 10²⁴ molecules Br
<u>Step 2: Identify Conversions</u>
Avogadro's Number
<u>Step 3: Convert</u>
<u /> = 2.999 mol Br
<u>Step 4: Check</u>
<em>We are given 4 sig figs. Follow sig fig rules and round.</em>
Our final answer is already in 4 sig figs, so there is no need to round.
Answer : If a reactant undergoes first order kinetics and the initial reactant was R is consumed in 4 half lives then,
the first half life would undergo from 1 to 1/2R;
the second half life will go from 1/2R to 1/4R;
in third half life it will undergo from 1/4R to 1/8R;
And finally in fourth half life it will go from 1/8R to 1/16R.
So, it means
is utilized and only 1/16 R remains
the first half life would undergo from 1 to 1/2R;
the second half life will go from 1/2R to 1/4R;
in third half life it will undergo from 1/4R to 1/8R;
And finally in fourth half life it will go from 1/8R to 1/16R.
So, it means