1. 92 g
2. 5.4 g
3. 0.217 moles
<h3>Further explanation </h3>
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
1. the mass of 4 moles of Na(MW= 23 g/mol)
2. the mass of 0.3 moles of water(MW=18 g/mol)
3. the number of moles found in 10g of ethanol C2H5OH(MW=46 g/mol) :
Answer:
Mass = 38.3 g
Explanation:
Given data:
Mass of Cl₂ required = ?
Mass of phosphorus = 10.6 g
Solution:
Chemical equation:
P₄ + 6Cl₂ → 4PCl₃
Number of moles of P₄:
Number of moles = mass/ molar mass
Number of moles = 10.6 g/123.9 g/mol
Number of moles = 0.09 mol
Now we will compare the moles of P₄ with Cl₂ from balance chemical equation.
P₄ : Cl₂
1 : 6
0.09 : 6×0.09 = 0.54 mol
Mass of chlorine gas:
Mass = number of moles × molar mass
Mass = 0.54 mol × 70.9 g/mol
Mass = 38.3 g
Answer:
C
Explanation:
I'm assuming that you meant to type neutral charge.
Since electrons are negative and protons are positive, having a balanced number of both of these would cause an atom to have a neutral charge.
The answer is four. The law of conservation of mass basically says that whatever is but in will always have the same mass coming out. so for example if you had 10 grams of water and then you heated it up, it is still 10 grams of water.
Answer:
Phosphorus can act as an acceptor while galium can act as a donor
Explanation:
In electronics, pentavalent atoms are used as acceptors while trivalent atoms are used donors. Hence the answers provided above.