Answer:
Cs, Cr, Cl
Explanation:
The Placement Of The Elements Increase In Electro Affinity.
Answer:
a) M HCl = 32.162 mol/L
b) m HCl = 15.873 mol/Kg
Explanation:
- wt% = (mass HCl / mass sln)×100
- δ HCl = mass HCl / Volume sln
- molarity = mol HCl / V sln (L)
- molality = mol HCl / Kg solvent
∴ MW HCl = 36.46 g/mol
assuming mass sln = 1 g
∴ mass sln = 1 g = g solvent + g solute
∴ solute: HCl
⇒ 0.37 = g HCl / g sln
⇒ g HCl = 0.37 g
⇒ g ste = 1 - 0.37 = 0.63 g
⇒ Kg ste = (0.63 g)×(Kg/1000 g) = 6.3 E-4 Kg
⇒ mol HCl = (0.37 g HCl)×(mol/36.46 g HCl) = 0.010 mol HCl
∴ V sln = (0.37 g)/(1.19 g/mL) = 0.3109 mL
⇒ V sln = (0.31 mL)×( L/1000 mL) = 3.109 E-4 L
a) molarity (M):
⇒ M HCl = 0.010 mol HCl / 3.109 E-4 L
⇒ M HCl = 32.162 mol/L
b) molality (m):
⇒ m HCl = ( 0.010 mol HCl) / (6.3 E-4 Kg)
⇒ m HCl = 15.873 mol/Kg
Answer:
Explanation:
The first thing we calculate are the moles: (50.0 g)/(20.0063 g/mol) =2.5 moles
Then we use the inverse formula for the molarity: (2.5 mol)/(12.0 M) = 0.208 L
My bad, I pressed the wrong button for answer!
Answer:
Covalent Bonding
Explanation:
P4O10 is a chemical compound generally known as Phosphorus pentoxide, derived from its empirical formula P2O5. P4O10 is technically called tetraphosphorus decaoxide, but under normal conditions it only exists as the dimer of P2O5, which is phosphorus (V) oxide, or phosphorus pentaoxide.
P4010 consists of two elements; phosphorus and oxygen. P4O10 is a covalent compound. This is because Phosphorous and Oxygen are both nonmetals, the bond formed is as a result of sharing of electrons.
No, it won't. A substance will only precipitate if it is not soluble in an aqueous solution. If you look at the solubility rules, it indicates that all sulfates are soluble except for ions of Ba, Pb, Ca and Sr. Since Ag is not in the list, AgSO4 is soluble and will not precipitate.