Answer:
c. Bomb calorimetry
Explanation:
The hydrocarbons are combustibles, it means that they can react in a combustion reaction to release energy. To measure this amount of energy, it's necessary equipment that the reaction can be placed in a controlled way. The bomb calorimeter is this equipment, which is an adiabatic vessel, with water. The heat is calculated based on the increase in the water temperature.
The coffee-cup calorimetry is used to measure the heat of a dissolution reaction and the bomb manometry is used to measure the pressure.
Answer:
Volume of water that must be added is 1.10 L
Explanation:
pH measures the acidity or the alkalinity of a substance
It is given by;
pH = -log[H+]
Using this we can find the concentration of H+ ions in the acid
pH = 2 = -log[H+]
Therefore;
[H+] = 10^-2
= 0.01 M
But, since 1 mole HNO₃ ionizes to give 1 mole of H+, then the concentration of HNO₃ is equal to the concentration of H+ ([HNO₃] = [H+])
Therefore;
Initial [HNO₃] = 0.01 M
Initial volume of HNO₃ = 11.1 mL or 0.0111 L
We can then use dilution equation to find the final volume after dilution.
The final pH is 4
Therefore, [H+] = 10^-4
= 0.0001 M
Thus, the final concentration of HNO₃ is 0.0001 M
Using dilution equation;
M1V1 =M2V2
Thus; V2 = M1V1÷ M2
= (0.01 M× 0.0111 L)÷ 0.0001 M
= 1.11 L
This means the final total volume will 1.11 L or 1110 ml
Therefore; The volume of water added = 1110 ml - 11.1 ml
= 1098.9 ml or
= 1.0989 L
= 1.10 L(2 d.p.)
Hence, The volume of water that must be added is 1.10 L
Answer:
Explanation:
CHECK THE ATTACHMENT FOR THE COMPLETE QUESTION AND THE DETAILED EXPLANATION
NOTE:
Equatorial atoms are referred to atoms that are attached to carbons in the cyclohexane ring which is found at the equator of the ring.
Axial atoms are atoms that exist in a bond which is parallel to the axis of the ring in cyclohexane
Answer:
0.020 moles of 
can be formed
Explanation:
1. First determine the number of moles of LiOH.
Molarity is given by the following expression:
Solving for moles of solute:
moles of solute = M * Liters of solution
Converting 175.0mL to L:
Replacing values:
moles of solute = 0.227M*0.175L
moles of solute = 0.040
Therefore there are 0.040 moles of LiOH
2. Then write the balanced chemical reaction and use the stoichiometry of the reaction to calculate the number of moles of produced:
As the problem says that there are excess of 
, the limiting reagent is the LiOH.
can be formed
Answer:
Each molecule contains one atom of A and one atom of B. The reaction does not use all of the atoms to form compounds.
A + B ⟶ Product
Particles: 6 8 6
If six A atoms form six product molecules, each molecule can contain only one A atom.
The formula of the product is ABₙ.
If n = 1, we need six atoms of B.
If n = 2, we need 12 atoms of B. However, we have only eight atoms of B, so the formula of the product must be AB.
Thus, 6A + 6B ⟶ 6AB, with two B atoms left over.
Explanation:
Credit goes to @znk
Hope it helps you :))
