Answer:
2.042 g
Explanation:
The reaction that takes place is:
- 2HCl + Mg(OH)₂ → Mg²⁺ + 2Cl⁻ + 2H₂O
First we <u>calculate how many HCl moles were added</u>, using <em>the given volume and concentration</em>:
- 30 mL ⇒ 30 / 1000 = 0.030 L
- 5.6 M * 0.030 L = 0.168 mol HCl
Then we<u> convert HCl moles into Mg²⁺ moles</u>, using the<em> stoichiometric coefficients</em>:
- 0.168 mol HCl *
= 0.084 mol Mg⁺²
Finally we <u>convert Mg moles into grams</u>, using its<em> molar mass</em>:
- 0.084 mol Mg⁺² * 24.305 g/mol = 2.042 g
Answer:it will be c on edg 2021
Explanation:
Answer:
Check the explanation
Explanation:
Kindly check the attached image below to see the step by step explanation to the question above.
Answer:
Odds to be given for an event that either Romance or Downhill wins is 11:4
Explanation:
Given an odd, r = a : b. The probability of the odd, r can be determined by;
Pr(r) = 
÷ (
So that;
Odd that Romance will win = 2:3
Pr(R) = 
÷ (
= ÷ 
= 
Odd that Downhill will win = 1:2
Pr(D) = 
÷ (
= ÷ 
= 
The probability that either Romance or Downhill will win is;
Pr(R) + Pr(D) = +
= 
The probability that neither Romance nor Downhill will win is;
Pr(neither R nor D) = (1 - )
= 
The odds to be given for an event that either Romance or Downhill wins can be determined by;
= Pr(Pr(R) + Pr(D)) ÷ Pr(neither R nor D)
= ÷
= 
Therefore, odds to be given for an event that either Romance or Downhill wins is 11:4
Answer:
Approx. 4⋅g.
Explanation:
Moles of sulfuric acid =10.0⋅g98.08⋅g⋅mol−1=0.102⋅mol.
Now we have the molar quantity of sulfuric acid that react; we also have the stoichiometric equation that shows the molar equivalence of sulfuric acid, and lithium hydroxide.
Given the stoichiometry,
mass of water =0.102⋅mol×2×18.01.g.mol−1=??⋅g.
Why did I multiply the mass in this equation by 2? Am I pulling your leg?
