Answer:
7.055 atm
Explanation:
T = (273 + 37)K = <em>310K</em>
The ideal gas constant =<em> 0.0821</em>atm.L/mol.K
Concentration = (0.90g)*(1mol/58.4g/0.100mL) = 0.154mol/L
Molar mass= Concentration*i
Osmotic pressure = Molar mass *the ideal gas constant*T
OP = (0.154)*(1.8)*(0.0821)*(310) = 7.055 atm
The type of bonding and the numbers of covalent bonds an atom can form with other atoms are determined by the unpaired electrons present in the valence shell. The electrons are called the valence electrons. These are the electrons that can participate in chemical bonding.
Answer:
The answer to your question is 42.9 g of Ca
Explanation:
Data
mass of Ca = ?
mass of N₂ = 10 g
Balanced chemical reaction
3Ca + N₂ ⇒ Ca₃N₂
Process
1.- Calculate the molar mass of the reactants.
Ca = 3(40) = 120 g
N₂ = 2(14) = 28 g
2.- Calculate the mass of Calcium using proportions and the molar mass of the reactants.
120 g of Ca ---------------- 28 g of N₂
x ---------------- 10 g of N₂
x = (10 x 120) / 28
x = 1200 / 28
x = 42.9 g of Ca
Answer:
A Beaker, however if you are doing this from home a measuring cup would probably be more available.
Volume of a sphere = 4/3 x pi x r^3
When put a fraction of volume constant 4/3 x pi cancels out.
So only cube of radii remains.
Radius of proton = 10^-15 m (Fact; remember it)
Radius of total Hydrogen atom = 0.529 × 10^−10 m
Fraction of Volumes : R'^3/R^3 = (R/R)^3
Fraction = ((10^-15)/(0.529 × 10^−10m.))^3= (1/52900)^3 =
6.755 x 10^-15
