Answer: The value of the equilibrium constant Kc for this reaction is 0.088
Explanation:
where,
x = given mass
M = molar mass
= volume of solution in L
Equilibrium concentration of
=
Equilibrium concentration of
= 
Equilibrium concentration of
=
The given balanced equilibrium reaction is,
The expression for equilibrium constant for this reaction will be,
Now put all the given values in this expression, we get :
Answer:
The answer is
<h2>40.0 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question
mass = 420 g
density = 10.5 g/cm³
The volume is

We have the final answer as
<h3>40.0 mL</h3>
Hope this helps you
Answer: 429 grams of
should be added to 1.3 L of water to prepare 2.0 M solution
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

where,
n = moles of solute
=
= volume of solution in Liters
Now put all the given values in the formula of molarity, we get


Therefore, 429 grams of
should be added to 1.3 L of water to prepare 2.0 M solution
<h3>
Answer:</h3>
0.342 mol Ca
<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>
<u>Stoichiometry</u>
- Using Dimensional Analysis
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
13.7 g Ca
<u>Step 2: Identify Conversions</u>
Molar Mass of Ca - 40.08 g/mol
<u>Step 3: Convert</u>
- Set up:

- Multiply/Divide:

<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
0.341816 mol Ca ≈ 0.342 mol Ca
Gaseous
The atoms are taking up the volume of the entire container