Answer:
"0.053457 M" of sulfuric acid.
Explanation:
The given values are:
= 10 mL solution
= 12.20 mL
= 22.20 mL
then,
M 0.103 M of NaOH,
= experiment will not be affected
= 10.38 mL
Now,
⇒ mol of NAOH = MV
= 
= 
Whether Sulfuric acid, then
⇒ 
⇒ 
⇒ 
Before any dilution:
⇒ 
(Sulfuric acid)
Sodium atom , potassium atom and cesium atom have the same group number which is group 1
Answer:
if you add a neutron to lithium-7 it becomes a compound nucleus of lithium-8
Answer:
The answer is 4.28 moles
Explanation:
This is super easy okay, you won't forget this!
Basically mole ratios, we're just looking at the coefficients in front of the compounds, multiplying them, and dividing them as we see fit.
In this example, you can see how you need 2 moles of lithium bromide (LiBr) for the reaction, and 2 moles of lithium chloride (LiCl) will be produced.
Basically, the <u>molar ratio</u> is when you divide numbers and see how much of this do I have for that (if that makes sense).
So if you were to divide the 2 moles of LiBr / 2 moles of LiCl = 1. So we know that the mole ratio for LiBr to LiCl is 1:1 or 2:2, either or, it's the same thing.
SO THE BIG IDEA, if we have 4.28 moles of lithium bromide reacting, we should also have 4.28 moles of lithium chloride produced, BECAUSE the <u>mole ratio</u> is 1:1.
I hope this makes sense please tell me if it doesn't, I will try my best to explain a little more.
Answer:
1.58gcm⁻³
Explanation:
Given parameters:
Volume of sample = 1.00L
Mass of sample = 1.58kg
unknown:
Density of the sample
Solution:
The density of a substance is expressed as its mass per unit volume.
The units of the parameters are given for volume as liters and for mass as kg.
We need to convert to cm³ for volume and into g for the mass:
1L = 1000cm³:
Therefore, the volume of the sample is 1000cm³
For the mass:
1kg = 1000g
1.58kg gives 1.58 x 1000g = 1580g
The density of the sample will be:
Density = 
Density = 
= 1.58gcm⁻³
