Answer:
The answer to your question is 0.6 M
Explanation:
Data
Molarity = ?
Volume = 450 ml
mass of NaCl = 15 g
Process
1.- Calculate the molar mass of NaCl
NaCl = 23 + 35.5 = 58.5 g
2.- Calculate the number of moles of NaCl
58.5 g of NaCl ------------ 1mol
15 g of NaCl ------------ x
x = (15 x 1)/58.5
x = 0.26 moles
3.- Calculate the molarity
Molarity = moles/volume
-Substitutiion
Molarity = 0.26/0.45l
-Result
Molarity = 0.6 M
Answer:
50 g NaOH
General Formulas and Concepts:
<u>Chemistry - Solutions</u>
- Reading a Periodic Table
- Using Dimensional Analysis
- Molarity = moles of solute / liters of solution
Explanation:
<u>Step 1: Define</u>
0.500 L
2.50 M NaOH
x moles of solute
<u>Step 2: Define conversions</u>
Molar Mass of Na - 22.99 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of H - 1.01 g/mol
Molar Mass of NaOH - 22.99 + 16.00 + 1.01 = 40 g/mol
<u>Step 3: Find moles of solute</u>
2.50 M NaOH = x moles NaOH / 0.500 L
x = 1.25 moles NaOH
<u>Step 4: Convert</u>
<u /> = 50 g NaOH
<u>Step 5: Check</u>
<em>We are given 3 sig figs. Since our final answer has 2 sigs, there is no need to round.</em>
Answer:
Because they convert the electrical voltage produced by increasing and then it goes into the power lines
Explanation:
Answer:
The reaction is given as:
Explanation:
Bases are defined as those chemical substances which give hydroxide ions in their aqueous solutions.
When sodium hydroxide is added to water it gets dissociated into two ions that are sodium ions and hydroxide ions. Along with this heat energy also releases during this reaction.
The reaction is given as: