How many moles of HCL are in 20 ml sample of .10 M HCL
1 answer:
<h3>
Answer: </h3>
0.002 moles
<h3>
Explanation: </h3>
Concept tested: Molarity
We are given;
Volume of HCl as 20 ml or 0.02 L Molarity of HCl solution as 0.10 M We are required to calculate the number of moles of HCl
What is molarity?
Molarity is the concentration of a solution in moles per liter How is it calculated?
It calculated by dividing number of moles by volume; Molarity = Number of moles ÷ Volume To calculate the number of moles we rearrange the formula;
Moles = Molarity × Volume
In this case;
Moles of HCl = 0.10 M × 0.02 L
= 0.002 moles
Therefore, the number of moles of HCl is 0.002 moles
You might be interested in
radiation is energy that comes from a source. (travels through the speed of light)
Answer:
from 10-14
Explanation:
the pH of potassium hydroxide is extremely high and is a strong base although the exact value depends on the concentration of the base in water.
Answer:
A snow leopard is one of the top consumers in the Himalayas who lives in dens that are close to somewhere to look down to watch its prey. They also use it's large paws to climb up slopes and snow and a long tale to balance on thin spaces to catch markhhors.
Explanation:
<h3>
(: </h3>
<h3>
Answer: </h3>
84
<h3>
Explanation: </h3>
The nuclear equation shows the decay of Radon-222 by emitting an alpha particle to form polonium-218. When a radioactive isotope undergoes alpha-decay, the mass number is decreased by 4 while the atomic number decreases by 2. Therefore, the complete nuclear equation is; ²²²₈₆Rn → ²¹⁸₈₄Po + ⁴₂He
The atomic number of Radon-222 decreases from 86 to 84 while the mass number decreases from 222 to 218, forming polonium-218.