1.64 atm
PV = nRT —> P = nRT / V
n = 3 moles
R = 0.08206 L atm / mol K
T = 400 K
V = 60 L
P = (3)(0.08206)(400) / 60 = 1.64 atm
Answer:
An element is more the “subject”; such as sodium, carbon, iron, etc are elements. An element can be a single gold atom or a whole chuck of pure gold (Au). An atom is the single distinguishing component which makes an element. For example a single carbon (name of the element) atom has 6 protons and 6 electrons
Explanation:
Answer:
Explanation:
The balanced chemical equation between
SrO + 2HCl → H2O + SrCl2
Answer:
Mass of Fe = 32.55 g
Explanation:
Molar Mass of Fe atom = 55.845 g/mol
It means,
1 mole of Fe contains = 55.845 g ..............(1)
From mole concept,
<u>1 mole </u>of Fe contain =
atom ..........(2)
Replace 1 mole in equation (2) by 55.845 g , it become :
55.845 g of Fe contain =
atoms
Reverse the equation now
atoms of Fe contain =55.845 g
1 atom of Fe contain =
g
atom contain =
![\frac{55.845}{6.022\times 10^{23}}\times 3.51\times 10^{23}](https://tex.z-dn.net/?f=%5Cfrac%7B55.845%7D%7B6.022%5Ctimes%2010%5E%7B23%7D%7D%5Ctimes%203.51%5Ctimes%2010%5E%7B23%7D)
on calculation,
atom contain = 32.55 g of Fe
Mass of Fe = 32.55 g
Bases which is what turns blue on chromography paper