The name of Sn(NO3)4⋅5H2O IS Tin IV Nitrate, Pentahydrate
We first write the true name of the metal as it is on the periodic table
Sn- Tin
Next we write the name of the anion
(NO₃)-Nitrate
Remember the oxidation states of Tin is +2 and +4 but it used its +4 to combine with the nitrate , Also oxidation state of nitrate is -1
So we assign the oxidation state in Roman Numerals to the respective owners giving us
Tin IV Nitrate
With the addition of 5 molecules of water , the name becomes ,
Tin IV Nitrate, Pentahydrate
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White phosphorus melts and then vaporizes at high temperatures. The gas effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions-There are 4 atoms of P in the molecule
Explanation:
Ar=30,97g/mol
/
=
=0,404
0,404=![\sqrt{20,18/30,97*x}](https://tex.z-dn.net/?f=%5Csqrt%7B20%2C18%2F30%2C97%2Ax%7D)
=20,18/30,97*x
X=20,18/30,97*0,163
X=4
There are 4 atoms of P in the molecule
White phosphorus melts and then vaporizes at high temperatures. The gas effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions-There are 4 atoms of P in the molecule
A heterogeneous mixture is one that is not evenly mixed
A homogeneous mixture is one that is evenly mixed
im pretty sure the answer you are looking for is relative though because mixtures do not have a fixed composition
Answer:
The answer to your question is: A.
Explanation:
A. C + 2H₂ ⇒ CH₄ This is the right answer because the equation is balanced and is according to the law of conservation of matter.
B. 2H₂ + O₂ ⇒ NH₃ This option is wrong because in the reactants there is oxygen and it is not in the products.
C. 2Al₂O₃ ⇒ 2Na₂O This equation is not according to the law of conservation of matter, in the reactants there is aluminum and it is not in the products.
D. N₂ + 3H₂ ⇒ P₄O₁₀ This equation is not according to the law of conservation of matter.
I can easily work out the molar mass of Ca3PO4 - but I do not see any reason to do this.
There is no such compound
If you want the molar mass of tricalcium phosphate , then the correct formula is Ca3(PO4)2 .
For purposes of calculating the molar mass it is easier to write: Ca3P2O8
Ca = 40.078g/mol *3 = 120.234g
P = 30.974g/mol *2 = 61.948g
O = 15.999g/mol *8 = 127.992g
Total = 310.174g/mol
Mass of 4.5 mol = 310.174g/mol *4.5mol = 1395.783g
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