Answer:
molecular compound
Explanation:
it has two or more nonmetal elements and are covalently bonded
Explanation:
solution has a pH of 2 is a strong acid.
Answer:
molar mass of methane CH4
= C + 4 H
= 12.0 + 4 x 1.008
= 12.0 + 4.032
= 16.042g/mol
7.31 x 10^25 molecules x 1 mole CH4 = 121.43 moles
6.02 x 10^23 CH4 molecules
121.43 moles CH4 are present.
Explanation:
not to certain if this is right or not.. but hope it helps!
Answer: The frequency of this light is ![6.62\times 10^{14}s^{-1}](https://tex.z-dn.net/?f=6.62%5Ctimes%2010%5E%7B14%7Ds%5E%7B-1%7D)
Explanation:
To calculate the wavelength of light, we use the equation:
![\lambda=\frac{c}{\nu}](https://tex.z-dn.net/?f=%5Clambda%3D%5Cfrac%7Bc%7D%7B%5Cnu%7D)
where,
= wavelength of the light =![453nm=453\times 10^{-9}m](https://tex.z-dn.net/?f=453nm%3D453%5Ctimes%2010%5E%7B-9%7Dm)
c = speed of light = ![3.0\times 10^8m/s](https://tex.z-dn.net/?f=3.0%5Ctimes%2010%5E8m%2Fs)
= frequency of light = ?
![\nu=\frac{3.0\times 10^8m/s}{453\times 10^{-9}m}=6.62\times 10^{14}s^{-1}](https://tex.z-dn.net/?f=%5Cnu%3D%5Cfrac%7B3.0%5Ctimes%2010%5E8m%2Fs%7D%7B453%5Ctimes%2010%5E%7B-9%7Dm%7D%3D6.62%5Ctimes%2010%5E%7B14%7Ds%5E%7B-1%7D)
The frequency of this light is ![6.62\times 10^{14}s^{-1}](https://tex.z-dn.net/?f=6.62%5Ctimes%2010%5E%7B14%7Ds%5E%7B-1%7D)
You can make 0.288 L of 4M solution using 100g of lithium bromide