Answer:
1200 metric tons = 2645547 pounds
Explanation:
We need to find twelve hundred metric tons of solid waste is how many pounds.
For this, we must know the conversion from metric tons to pounds.
1 metric tons = 2204.62 pounds
To convert 1200 metric tons, multiply 2204.62 by 1200 as follows :
1200 metric tons = 2204.62 × 1200 pounds
= 2645547 pounds
Hence, twelve hundred metric tons of solid waste is equal to 2645547 pounds.
Strong acids can dissolve the salts of weak acid. When we consider the different salts of silver:
Salts of silver with the conjugate bases of a weak acid are soluble in strong acidic solutions. Some of these salts are:
![2Ag^{+}(aq)+CO_{3}^{2-}(aq) --->Ag_{2}CO_{3}(s)](https://tex.z-dn.net/?f=2Ag%5E%7B%2B%7D%28aq%29%2BCO_%7B3%7D%5E%7B2-%7D%28aq%29%20---%3EAg_%7B2%7DCO_%7B3%7D%28s%29)
![Ag^{+}(aq)+C_{2}H_{3}O_{2}^{-}(aq)-->AgC_{2}H_{3}O_{2}(aq)](https://tex.z-dn.net/?f=Ag%5E%7B%2B%7D%28aq%29%2BC_%7B2%7DH_%7B3%7DO_%7B2%7D%5E%7B-%7D%28aq%29--%3EAgC_%7B2%7DH_%7B3%7DO_%7B2%7D%28aq%29)
![2Ag^{+}(aq)+SO_{3}^{2-}(aq) --->Ag_{2}SO_{3}(s)](https://tex.z-dn.net/?f=2Ag%5E%7B%2B%7D%28aq%29%2BSO_%7B3%7D%5E%7B2-%7D%28aq%29%20---%3EAg_%7B2%7DSO_%7B3%7D%28s%29)
Salts of silver with the conjugate bases of a strong acid are not affected by change in pH:
![Ag^{+}(aq)+Cl^{-}(aq) --->AgCl(s)](https://tex.z-dn.net/?f=Ag%5E%7B%2B%7D%28aq%29%2BCl%5E%7B-%7D%28aq%29%20---%3EAgCl%28s%29)
![2Ag^{+}(aq)+SO_{4}^{2-}(aq) --->Ag_{2}SO_{4}(s)](https://tex.z-dn.net/?f=2Ag%5E%7B%2B%7D%28aq%29%2BSO_%7B4%7D%5E%7B2-%7D%28aq%29%20---%3EAg_%7B2%7DSO_%7B4%7D%28s%29)
These two salts with Chloride and sulfate ions are not soluble in acidic solutions as the salts of silver with the conjugate bases of a strong acid are not soluble in acidic solutions, they remain unaffected by any change in pH.
So for salts of Ag and Ba with the conjugate bases of a weak acid, solubility is increased upon the addition of an acid. So, the interference from the ions of weak acids can be removed by decreasing the pH.
You can look at the number of valence electrons and look at the size of the molecule itself to determine which element in this certain group is shown on the model.
sodium cloride is salt created from sodium Na and chlorine Ci
Na-sodium Ca- calcium
Ci-chlorine FL- flerovium
Ca- calcium Br-bromine
H- hydrogen He-helium
Answer:
Mass = 10440.9 g
Explanation:
Given data:
Number of atoms of Cu₂S = 3.95×10²⁵
Grams of Cu₂S = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
Now we calculate the number of moles from given number of atoms.
3.95×10²⁵ atoms/ 6.022 × 10²³ atoms × 1 mol
0.656×10² mol
65.6 mol
Now we will calculate the mass:
Mass = number of moles × molar mass
Mass = 65.6 mol × 159.16 g/mol
Mass = 10440.9 g