Answer:
Explanation:
To convert from grams to moles, the molar mass is used. These values tells us the grams in 1 mole of a substance. They can be found on the Periodic Table (they are equivalent to the atomic masses, but the units are grams per mole).
We are given the compound C₈H₁₈. Look up the molar masses of the individual elements.
- Carbon (C): 12.011 g/mol
- Hydrogen (H): 1.008 g/mol
Notice there are subscripts that tell us the number of atoms of each element. We must multiply the molar masses by the subscripts.
- C₈: 8(12.011 g/mol)=96.088 g/mol
- H₁₈: 18(1.008 g/mol)=18.144 g/mol
Add these 2 values together to find the molar mass of the whole compound.
- C₈H₁₈: 96.088 g/mol +18.144 g/mol=114.232 g/mol
Use this number as a ratio.
Multiply by the given number of moles: 7.5
The moles of C₈H₁₈ will cancel each other out.
7.5 moles of C₈H₁₈ is equal to <u>856.74 grams of C₈H₁₈</u>
Answer:
The answer is either o or p i think it is p
Explanation:
<span>Kinetics gives information on the reaction rate and reaction mechanism; the balanced chemical equation gives only the stoichiometry of the reaction.Reaction rates generally increase with increasing reactant concentration, increasing temperature, and the addition of a catalyst. Physical properties such as high solubility also increase reaction rates. Solvent polarity can either increase or decrease the reaction rate of a reaction, but increasing solvent viscosity generally decreases reaction rates.Increasing the temperature increases the average kinetic energy of molecules and ions, causing them to collide more frequently and with greater energy, which increases the reaction rate. First dissolve sugar in the hot tea, and then add the ice.</span>
Answer:
Energy is the ability to do work or to produce heat.
Answer:
THE MOLARITY OF THE SOLUTION IS 3.36 MOLE/L
Explanation:
First we must understand what molarity is.
Molarity is the number of mole per unit volume of solution. In this question, 9.25 mole of H2SO4 was given in 2.75 L of solution.
Molarity is written in mole per dm3 or L.
So we can calculate the molarity:
9.25 ole of H2SO4 = 2.75 L of solution
The number of mole in 1 L of solution will be:
= 9.25 mole / 2.75 L
= 3.3636 mole/ L
In conclusion, the molarity of the solution is approximately 3.36 mole/L
