I believe that the answer might be A. a<span> strong acid has a higher pH than a weak acid.</span>
The volume of NaOH solution is 0.532 L.
<em>Step 1</em>. Calculate the <em>moles of NaOH</em>.
Moles = 11.5 g NaOH × (1 mol NaOH/40.00 g NaOH) = 0.2875 mol NaOH
<em>Step 2</em>. Calculate the <em>volume of NaOH</em>
Volume = 0.2875 mol NaOH × (1 L NaOH/0.540 mol NaOH) = 0.532 L
Answer:
So the molar mass of a chemical compound is defined as the mass of a sample of that compound is divided by the amount of the substance in that sample measured in the moles.
If a compound is made from two non-metals it’s bonding will be covalent
Answer:
After 4 days 10 g will left
After 8 days 5 g will left.
Explanation:
Given data:
Half life of isotope = 4 days
Total amount of sample = 20 g
Amount left after each time period = ?
Solution:
The half life of radioactive isotope is 4 days it means after 4 days the amount left will be half of total amount.
20 g/2 = 10 g
The half amount which is left will be consume in next 4 days and remaining amount will be,
10 g/2 = 5 g
After 4 days 10 g will left
After 8 days 5 g will left.
