Hi,
10,000,000sec = 16.53 weeks
Hope this helps.
r3t40
Answer:
There are
Explanation:
In this problem, we need to find the number of molecules in
mol of
.
The molar mass of
is ![6\times 12+1\times 6=78\ g/mol](https://tex.z-dn.net/?f=6%5Ctimes%2012%2B1%5Ctimes%206%3D78%5C%20g%2Fmol)
No of moles = mass/molar mass
We can find mass from above formula.
![m=n\times M\\\\m=8.437\times 10^{-2}\ mol\times 78\ g/mol\\\\m=6.58\ g](https://tex.z-dn.net/?f=m%3Dn%5Ctimes%20M%5C%5C%5C%5Cm%3D8.437%5Ctimes%2010%5E%7B-2%7D%5C%20mol%5Ctimes%2078%5C%20g%2Fmol%5C%5C%5C%5Cm%3D6.58%5C%20g)
Also,
No of moles = no of molecules/Avogadro number
![N=n\times N_A\\\\N=8.437\times 10^{-2}\times 6.023\times 10^{23}\\\\N=5.08\times 10^{22}\ \text{molecules}](https://tex.z-dn.net/?f=N%3Dn%5Ctimes%20N_A%5C%5C%5C%5CN%3D8.437%5Ctimes%2010%5E%7B-2%7D%5Ctimes%206.023%5Ctimes%2010%5E%7B23%7D%5C%5C%5C%5CN%3D5.08%5Ctimes%2010%5E%7B22%7D%5C%20%5Ctext%7Bmolecules%7D)
Hence, there are
Solubility,,,,,add water to the mixture,salt will dissolve to form a solution while sand is insoluble,,,,,decant the salt solution as filtrate and remain with sand as residue,,,,,if salt crystals are needed,,,,evaporate the filtrate to dryness.
The temperature for the reaction is calculated as follows
delta H/ delta S
delta H=-70 Kj
delta S =-0.300 kj/k
temperature is therefore = -70kj/-0.300kj/k =233.33 K
The compound
will have a triple bond.
Explanation:
A compound which consists of carbon and hydrogen atoms is known as a hydrocarbon.
Alkanes, alkenes and alkynes are all hydrocarbons.
- General chemical formula of an alkane is
. In an alkane molecule, all the atoms will be bonded through single bonds.
For example,
is propane.
- General chemical formula of an alkene is
. An alkene molecule will have atleast one double bond between two carbon atoms.
For example,
is ethene.
- General chemical formula of an alkyne is
. An alkyne will have atleast one triple bond between two carbon atoms.
For example,
is propyne.
Thus, we can conclude that out of the given options
will have a triple bond.