Answer:
Explanation:
The<em> energy of a photon</em>, E, can be calculated with the Planck-Einstein equation:
Where:
- h is Planck's constant 6.626×10⁻³⁴ J.s, and
- f is the frequency of the photon or electromagnetic radiation.
Substituting with your data:
Now multiply by Avogadro's number to obtain the energy of one mole of photons:
The mass is 1610 g.
Explanation:
<span>D=<span>MV</span></span>, where D is density, M is mass, V is volume
Known/Given
D=0.921 g/mL
<span>V=1.75 L×<span><span>1000mL</span><span>1L</span></span>=1750 mL</span>
Unknown
M
Equation
<span>D=<span>MV</span></span>
Solution
Rearrange the equation to isolate the mass and solve for mass.
<span>M=D×V=0.921g/mL×1750mL=1611.75 g=1610 g</span> with three significant figures.
The following diagram helps to understand how to manipulate the density equation so solve for any of the variables.
The following Density Triangle will help you determine how to solve
for any missing variable. Put your finger over the missing variable to
see what you need to do to solve for it. For example, if you need to
find volume, put your finger over the V, and you get <span>M÷D</span>.
https://www.teacherspayteachers.com/Product/Science-Journal-Density-Triangle-Foldable-Completed-4360...
I can describe one prop. of energy: it can not be created or destroyed. It can be transferred, or converted, though.
The hybridization of the nitrogen atoms in n2 is <span>N2 sp(3 bonds) n N2H4 sp3(1 N-N bond)
The molecule that has a stronger N-N bond
N2 has stronger bond(multiple bonds) n in N2 two pi are stronger than 1 sigma(MOT)
Note: in N don't forget lone pair of electrones</span>
