Hey there!:
Wavelength λ = 0.650 fm = 0.650* 10⁻¹⁵ m (1 fm = 10⁻¹⁵ m)
Speed v = 129 m/s⁻¹
Planck constant h = 6.626 * 10⁻³⁴ J.s
De Broglie equation: λ = h/mv
Mass m = h/λv
= 6.626 * 10⁻³⁴/ ( 0.650* 10⁻¹⁵ * 129)
= 6.626*10⁻³⁴ / 8.385*10⁻¹⁴
= 7.902*10⁻²¹ Kg
Hope that helps!
Componys and rocks hope that helped
Graphite is used
hope this helps
Answer:
1.45 mol
Explanation:
Given data
- Volume of the gas (V): 8.77 L
- Temperature of the gas (T): 20 °C
- Pressure of the gas (P): 3.98 atm
Step 1: Calculate the absolute temperature (Kelvin)
We will use the following expression.
Step 2: Calculate the number of moles (n) of the gaseous sample
We will use the ideal gas equation.
Answer:
the only remote information i could find about this element was sodium
dicyanidoaurate(I)
sodium dicyanoaurate(1-)
Na[Au(CN)2]
sodium dicyanidoaurate(1-)
but as you see these go towards Na[Au(CN)2] not Na[Au(CN)4], so I will leave the rest up to you.
Have a good day.
Explanation:
https://pubchem.ncbi.nlm.nih.gov/compound/5460536
that is the website i found that off of
https://www.webqc.org/molecular-weight-of-Na%5BAu%28CN%294%5D.html
this one tells you the element names.