Answer:
Demographic segmentation
Explanation:
Demographic segmentation
The market segmentation process , which is based on variable such as the gender , age , income etc .
This method enable the organizations to understand the behavior accurately which in turn helps the organization to perform in a better level .
It attributes like the age , gender , educational qualification and religion , plays a major role in the research .
Answer:
3.4 × 10²³ molecules of CBr₄
Explanation:
Given data:
Mass of CBr₄ = 189 g
Number of molecules = ?
Solution:
First of all we will calculate the number of moles.
Number of moles = mass / molar mass
Number of moles = 189 g/ 331.63 g/mol
Number of moles = 0.6 mol
Now 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
Foe 0.6 moles of CBr₄:
0.6 mol × 6.022 × 10²³ molecules of CBr₄ / 1 mol
3.4 × 10²³ molecules of CBr₄
Answer:
The heat of combustion of magnesium metal is 24.76 kJ/gram
Explanation:
Step 1: Data given
Mass of magnesium sample = 0.1946 grams
Molar mass of magnesium = 24.3 g/mol
bomb calorimeter that has a heat capacity of 1349 J/°C
Mass of water = 500 grams
Temperature change = 1.40 °C
Step 2: Calculated heat released
Q = (1349 J/°C * 1.40 °C) + (500 grams * 4.184 J/g°C * 1.40 °C)
Q =4817.4 J = 4.82 kJ
Step 3: Calculate the heat given off by the burning Mg, in kJ/g
4817.4 J / 0.1946 grams = 24755.4 J/ gram = 24.76 kJ/ gram
The heat of combustion of magnesium metal is 24.76 kJ/gram
Hybridization refers to the mixing of atomic orbitals in an atom. The number of hybrid orbitals needs to be equal to the number of orbitals that have involved in prior to mixing.
The isolated atoms cannot prevail in a hybridized state as the atom in an isolated state do not form any kind of bond with the other atom, due to which the atomic orbitals do not go through the process of hybridization.
Answer:
Explanation:
<u>1) Data:</u>
a) n = 2 moles
b) T = 373 K
c) V = 2.5 liter
d) P = ?
<u>2) Chemical principles and formula</u>
You need to calculate the pressure of the propane gas in the mixture before reacting. So, you can apply the partial pressure principle which states that each gas exerts a pressure as if it occupies the entire volume.
Thus, you just have to use the ideal gas equation: PV = nRT
<u>3) Solution:</u>
P = 2 mol × 0.08206 atm-liter /K-mol × 373K / 2.5 liter = 24.5 atm
Since the number of moles are reported with one significant figure, you must round your answer to one significant figure, and that is 20 atm (20 is closer to 24.5 than to 30).
