Answer:
The amount of water in a 95 mL sample of the solution is 33.25 mL
Explanation:
65% (v/v) rubbing alcohol is a solution containing 65 mL rubbing alcohol in 100 mL solution of the rubbing alcohol and water
Therefore, 95 mL sample of the solution will contain x mL of rubbing alcohol;
x = 65% × 95 = 0.65 × 95 = 61.75 mL rubbing alcohol and therefore, the amount of water contained = 95 - 61.75 = 33.25 mL
The amount of water in a 95 mL sample of the solution = 33.25 mL.
I think that it is Covalent..
Answer:
increase the rate of a reaction without being consumed by the reaction
Explanation:
- Enzymes are biochemical catalysts that increase the rate of chemical reactions.
- They increase the rate of a chemical reaction without being consumed by the reaction.
- Enzymes increase the rate of chemical reactions by decreasing the activation energy of the reactants.
- Catalysts such as enzymes do not affect the free energy change of a chemical reaction (delta G). Therefore, delta G for a catalyzed and non-catalyzed reaction is equal.
Answer:
a. Oxygen is the limiting reagent.
b. %
Explanation:
Hello,
a. Limiting reagent and sulfur trioxide's theoretical yield.
At first, we must compute the involved moles for both sulfur dioxide's and oxygen's as follows, considering the volumes in liters and the pressure in atm of 50.0mmHg*1atm/760mmHg=0.0658atm:
Afterwards, by considering the properly balanced chemical reaction:
We compute the oxygen's moles that completely reacts with the previously computed moles of as follows:
That result let us know that the oxygen is the limiting reagent since just moles are available in comparison with the moles that completely would react with moles of .
Now, to compute the theoretical yield of sulfur trioxide, we apply the following stoichiometric relationship:
b. Percent yield.
At first, we must compute the collected (real) moles of sulfur trioxide:
Finally, we compute the percent yield:
%
%
%
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