Answer:
p = 1.5 atm
Explanation:
pV = nRT
p = nRT/V = [1.8 mol×(0.082 atm L/mol K)×247.8 K]/24.5 L
p = 1.5 atm
Answer:
0.04 mol
Explanation:
Given data:
Mass of barium = 5.96 g
Moles of barium = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of barium = 5.96 g/ 137.33 g/mol
Number of moles = 0.04 mol
Thus the number of moles of barium in 5.96 g are 0.04 moles. The chemist weight out the 0.04 moles .
Answer:
The protons and electrons are attracted to each other because they are oppositely charged particles.
Explanation:
Protons have a positive charge and electrons have a negative charge, opposites attract.
Answer:
Decreases
Explanation:
An element's oxidation number decreases because it gained electrons.
Hey there!:
atomic mass:
Na = <span>22.98 a.m.u
Cl = 35.45 a.m.u
Therefore:
NaCl = 22.98 * 1 + 35.45 * 1
NaCl = 22.98 + 35.45
NaCl = 58.43 g/mol
hope this helps!</span>
