Answer:
Valence electrons are the most important electrons to an atom.
Explanation:
They will determine many of the atoms traits since they are involved in bonding with other atoms.
A. ironic
b. ironic
c. ironic
Answer:
90.5g de NOCl en 2500 g de solución blanqueadora.
Explanation:
Una solución de concentración 3.62% en peso de hipoclorito en una solución blanqueadora contiene 3.62g de NOCl por cada 100g de solución. Con esta relación, podemos encontrar la masa de NOCl en 2500g de solución, así:
2500g de solución * (3.62g NOCl / 100g solución) =
<h3>90.5g de NOCl en 2500 g de solución blanqueadora.</h3>
Answer:
P = 0.6815 atm
Explanation:
Pressure = 754 torr
The conversion of P(torr) to P(atm) is shown below:
So,
Pressure = 754 / 760 atm = 0.9921 atm
Temperature = 294 K
Volume = 3.1 L
Using ideal gas equation as:
PV=nRT
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
Applying the equation as:
0.9921 atm × 3.1 L = n × 0.0821 L.atm/K.mol × 294 K
⇒n of helium gas= 0.1274 moles
Surface are = 1257 cm²
For a sphere, Surface area = 4 × π × r² = 1257 cm²
r² = 1257 / 4 × π ≅ 100 cm²
r = 10 cm
The volume of the sphere is :
Where, V is the volume
r is the radius
V = 4190.4762 cm³
1 cm³ = 0.001 L
So, V (max) = 4.19 L
T = 273 K
n = 0.1274 moles
Using ideal gas equation as:
PV=nRT
Applying the equation as:
P × 4.19 L = 0.1274 × 0.0821 L.atm/K.mol × 273 K
<u>P = 0.6815 atm</u>
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