Assuming that the concentration is given as 0.010M (there is a big difference between m and M):
Sulfuric Acid (H2SO4) is a strong acid, and thus will completely dissociate into ions in solution. This will result in
For each mole of H2SO4, there will be 2 moles of H+. So, [H+] = 0.0200M
<h2>5060 have three significant figures : Explanation given below </h2>
Explanation:
Significant figures
The significant figures (also known as the significant digits and decimal places) of a number are digits that possess certain meaning .
It includes all digits except: zeros
Rules to find significant figures
1.All non-zero digits are considered significant. For example, 23 has two significant figures.
2.Zeros in between two non-zero digits are significant: like in 202.1201 has seven significant figures.
3.Zeros to the left of the significant figures are not significant. For example, .000021 has two significant figures, zeros have no value .
4.Zeros to the right of the significant figures are significant.
That is the reason in number 5060 , it has 3 significant figures .
Answer:
9.368g/mL
Explanation:
The density is defined as the mass of a compound in a determined volume.
Based on Archimedes' law, the volume of the piece of metal is the difference between the volume of the water + the inmersed piece - the original volume of water. That is:
<em>Volume of the metal:</em>
257.5mL - 229.0mL = 28.5mL
As the mass of the metal is 267.0g; its density is:
<em>Density:</em>
267.0g / 28.5mL =
<h3>9.368g/mL</h3>
Answer:
1.5 moles
Explanation:
Given data:
Number of moles of O₂ consumed = 2.5 mol
Moles of CO₂ produced = ?
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
Now we will compare the moles of oxygen with carbon dioxide from balance chemical equation:
O₂ : CO₂
5 : 3
2.5 : 3/5×2.5 = 1.5
Thus from 2.5 moles of oxygen 1.5 moles of carbon dioxide are produced.
Water and dimond are the 2 pure substances