Answer:
C is the reaction intermediate.
Explanation:
A reaction intermediate is a molecular structure that is formed during the reaction but then is converted in the final products.
Usually, these reaction intermediates are unestable and, for that reason, the lifetime of these structures is low.
In the reaction, you can see in the first step C is produced, but also, in the second step reacts producing D. As is produced and, immediately consumed,
<h3>C is the reaction intermediate.</h3>
Answer : Linear
Explanation : Hydrogen Cyanide (HCN) when drwan in the Lewis diagram shows carbon atom at the center with no lone electron pairs.
The carbon and nitrogen atoms are bonded through a triple bond which counts as "one electron pair".
The molecule has two electron pairs in all and appears to be linear.
Also, according to the VSEPR theory; the electron clouds on atoms around the carbon will try to repel each other.
They will get pushed apart, which gives HCN molecule a linear molecular geometry or shape.
The bond angle that is developed will be 180 degrees since it has a linear molecular geometry of HCN. The hybridisation observed in this molecule is SP.
(1) O2 Is a Nonelectrolyte: because it does not ionize when dissolved in a solution
(2) Xe Is a Nonelectrolyte: because it does not ionize when dissolved in a solution
(3) C3H8 Is a Nonelectrolyte: because it does not ionize when dissolved in a solution
(4) KNO3 Is an electrolyte: because it ionizes when dissolved in a solution
Electrolytes:
Electrolytes are the substance whose aqueous solution conducts electricity. These are mainly two types:
1. Strong electrolytes
2. Weak electrolytes:
Strong electrolytes:
Strong electrolytes have following properties:
1. They are ionic compounds.
2. They are completely separates into their ions when dissolved in water.
3. In solution form they conduct electricity due to present of ions but in solid form means neutral molecule does not conduct electricity.
Weak electrolytes:
Weak electrolytes are partially ionizes in water.
In general strong electrolytes are strong acid and strong base while weak electrolytes are weak acid and weak bases.
Nonelectrolyte:
The substance which does not ionize when dissolved in a solution is called non-electrolyte. It is a poor conductor of electricity.
Answer:
m = 0.5556 mol/kg
Explanation:
The molality of any solution is calculated using the following expression:
m = moles solute / kg solvent (1)
So in order to calculate the molality of this solution, we need to calculate the moles of the glucose using the expression:
n = mass / molecular weight (2)
The molecular weight of glucose, can be calculated using the molecular mass of the atoms in the glucose:
C = 12 g/mol; H = 1 g/mol; O = 16 g/mol
the molecular weight is:
MW = (12*6) + (12*1) + (6*16) = 180 g/mol
Then, the moles of glucose:
moles = 50 / 180 = 0.2778 moles
The solvent in this case is water, and 500 g of water is 0.5 kg of water, so the molality is:
m = 0.2778 / 0.5
m = 0.5556 mol/kg
