KOH is an alkali metal hydroxide and so would be a strong base. HCl is a hydrogen halide in solution, which would be a strong acid (the exception would be HF). There are no other strong bases or acids in this list, so these two substances will comprise our bookends.
KNO3 is a salt produced during the neutralization reaction between KOH and HNO3; the former is (as we just noted) a strong base, and the latter is a strong acid. The salt consisting of the conjugate acid and base of a strong base and acid, respectively, produces a neutral solution in water. So, the KNO3 would be neutral.
KCN in solution consists of the ions K+ and CN-; K+, as we just went through, is the conjugate acid of KOH, a strong base. CN- is the conjugate base of HCN, a weak acid in solution. Since the resultant salt, KCN, is the neutralization product of a strong base and a weak acid, it will be slightly basic in solution (the CN- is a stronger base than K+ is as an acid). So, the KCN solution would be slightly basic.
NH4Cl dissociates in solution to give NH4+ and Cl-. NH4+, as the conjugate acid of the weak base ammonia, NH3, will donate an H+ in water. Cl- is the conjugate base of a strong acid, HCl. The neutralization product of a strong acid (HCl) and a weak base (NH3) would be slightly acidic. So, the solution of NH4Cl would be slightly acidic.
Ranking the solutions from most acidic to most basic (note: it’s important that the solutions have the same concentrations), we get:
HCl (strong acid)
NH4Cl (weak acid salt)
KNO3 (neutral salt)
KCN (weak basic salt)
KOH (strong base).
A molecule represents the smallest part into which a compound can be divided and still retain its chemical and physical properties
Answer:
Coefficient of is more than 4
Explanation:
Oxidation:
- Balance charge: ......(1)
Reduction:
- Balance Cr:
- Balance O and H in acidic medium:
- Balance charge: .......(2)
gives balanced equation:
So coefficient of is more than 4
molar mass of sucrose is 342 g/mol.
Concept:
It is the substance's molecular mass. M is the abbreviation for it, and g/mol is the standard unit for measuring molar mass.
Given:
Sucrose (C12H22O11)
Find:
Calculate the molar mass of the powdered fruit drink mix, made from sucrose (C12H22O11).
Solution:
The molar mass of carbon = 12 g/mol
The molar mass of hydrogen = 1 g/mol
The molar mass of oxygen = 16 g/mol
Thus, the molar mass of sucrose can be calculated as:
C12H22O11 12 C + 22 H + 11 O
= 12 12 g/mol + 22 * 1 g/mol + 11 * 16 g/mol
= 144 g/mol + 22 g/mol + 176 g/mol = 342 g/mol
Therefore, the molar mass of sucrose is 342 g/mol.
Hence, the molar mass of the powdered fruit drink mix, made from sucrose
Hence, the molar mass of the powdered fruit drink mix, made from sucrose(C12H22O11) is 342 g/mol.
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None. Ammonium has no <span>π bonds at all so it can't have any resonance. </span>