Answer:
4Na + O₂ → 2Na₂O
6.82g
Explanation:
The combustion of sodium involves combining the element with oxygen gas:
4Na + O₂ → 2Na₂O
We have been given 5g of Na.
The balanced reaction equation is given as shown above. This reaction is also a synthesis or combination reaction.
b. Maximum amount of product that can be obtained.
Sodium is the limiting reactant and it will determine the amount of product that can be formed.
To solve this, we find the number of moles of the given sodium.
Mass of given sodium = 5g
Molar mass of Na = 23g/mol
Number of moles of Na =
Insert the parameters and solve;
Number of moles of Na = = 0.217moles
From the balanced reaction equation:
4 moles of Na will produce 2 moles of Na₂O
0.217 moles of Na will produce = 0.11mole of Na₂O
So;
Mass of Na₂O = number of moles x molar mass
Molar mass of Na₂O = 2(23) + 16 = 62g/mol
Mass of Na₂O = 0.11 x 62 = 6.82g
Answer:
Molarity of our solution= 0.46=0.5
Explanation:
When diluting a solution we can use the formula:
1
1
=
2
2
= M= Molarity of the solution
=V=volumes
On the left side, we'll put what we know/already have and on the right side of the formula we'll put down what we want to dilute it to.
Let's plug in what we already know.
(0.700M)(2L) = (M2)(3L)
Solve for M2 by dividing both sides by 3 so M2 will be by itself.
(0.700M)(2L)/(3L) = M2
M2= 0.46, we can round it up to 0.5
Explanation:
The electrons in the outermost electron shell are responsible for forming chemical bonds. These electrons are also known as valence electrons
Answer:
Your answer is triglycerides. Hope this helps.
60+68=128
128/2=64
so the answer is 64
I hope this helped