Answer:
0.016 m³
Explanation:
Step 1: Given data
Width of the tank (w): 18 in
Height of the tank (h): 11 in
Depth of the tank (d): 5 in
Step 2: Calculate the volume of the tank in in³
The fuel tank is a cuboid. We can calculate its volume using the following expression.
V = w × h × d
V = 18 in × 11 in × 5 in
V = 990 in³
Step 3: Convert 990 in³ to m³
We will use the relationship 1 m³ = 61023.7 in³.
990 in³ × (1 m³ / 61023.7 in³) = 0.016 m³
Answer:
185.2 g/mol.
Explanation:
Solvent = Benzene
Solute = lauryl alcohol
Given:
Mass of solute = 5 g
Mass of solvent = 0.1 kg
Freezing point of solvent, Temp.f = 4.1 °C
Initial freezing point of solvent, Temp.i = 5.5 °C
Molal freezing depression constant for Benzene, kf = 5.12 °C/m
ΔTemp.f = Temp.f - Temp.i
= 5.5 - 4.1
= 1.4 °C
ΔTemp.f = kf * m
Where m = molality
m = 1.4/5.12
= 0.27 mol/kg
Molality = number of moles of solute/mass of solvent
Number of moles = 0.27/0.1
= 0.027 mol.
Molar mass = mass/number of moles
= 5/0.027
= 185.2 g/mol.
Answer. Statement second and third both are correct.
Explanation: When iron(grey) reacts with sulfur(yellow) chemical change takes place in which iron sulfide is formed which black in color.
When we heat copper sulfate-pentahydrate(blue) ,water molecule present in its crystal will get evaporated and it will become an anhydrous copper sulfate which will be white in color.
So, in both the reactions change in color and change in chemical arrangement has taken place.
Answer:
firstly conversion of milligrams to kilograms
