Answer:
4 mol of KOH would produce 116.6 g of Mg(OH)₂
Explanation:
According to the following balanced equation:
- MgCl₂+ 2 KOH -----> Mg(OH)₂ + 2 KCL
One can note that 2 mol of KOH react with MgCl₂ to produce 1 mol of Mg(OH)₂.
using cross multiplication
2 mol of KOH → 1 mol of Mg(OH)₂.
4 mol of KOH → ?? mol of Mg(OH)₂.
no of moles of Mg(OH)₂ = (1 mol* 4 mol) / 2 mol =2 mol
Now we can convert moles of Mg(OH)₂ to grams using the formula
mass of Mg(OH)₂= (no. of moles * molar mass) = (2 mol * 58.3g/mol) = 116.6 g
- So, 4 mol of KOH would produce 116.6 g of Mg(OH)₂.
Is this for science class I need more info to answer the following question
The grams of carbon monoxide that are needed to react is 148.68 grams
<u><em>calculation</em></u>
Step 1: find the moles of iron
moles =mass÷ molar mass
from periodic table the molar mass of Fe is 56 g/mol
= 198.5 g÷ 56 g/mol =3.54 moles
Step 2: use the mole ratio to determine the moles of carbon monoxide(Co)
that is from given equation Co : Fe is 3:2 therefore the moles of Co
= 3.54 x 3/2 = 5.31 moles
Step 3 : find mass of CO
mass = moles × molar mass
from periodic table the molar mass of Co = 12+16 = 28 g/mol
mass is therefore = 5.31 moles × 28 g/mol = 148.68 grams
The movement of the blades represents wind energy.
The visible light that allows people to see where they are going describes light energy.
<h3 /><h3>What is a wind energy?</h3>
A wind energy is the energy that results from the blowing the wind.
The blowing of the wind causes the windmill blade to rotate converting kinetic energy into mechanical energy of the moving blades.
<h3>What is light energy?</h3>
Light energy is the energy that allows light to be visible to human eyes.
Thus, we can conclude that the movement of the blades represents wind energy.
The visible light that allows people to see where they are going describes light energy.
Learn more about wind and light energy here: brainly.com/question/11899573