Missing question: What is the total combined mass of carbon dioxide and water that is produced?
Chemical reaction: gasoline + O₂ → CO₂ + H₂O.
For this question use mass conservation law (mass of products is equal to mass of reagents): m(reactants) = m(products of reaction).
m(gasoline + oxygen) = m(carbon(IV) oxide + water).
m(carbon(IV) oxide + water) = 20 kg + 83 kg = 103 kg.
Answer:
Mechanical waves are waves that require a medium. This means that they have to have some sort of matter to travel through. These waves travel when molecules in the medium collide with each other passing on energy.
Answer:
4.76
Explanation:
In this case, we have to start with the <u>buffer system</u>:
We have an acid () and a base (). Therefore we can write the <u>henderson-hasselbach reaction</u>:
If we want to calculate the pH, we have to <u>calculate the pKa</u>:
According to the problem, we have the <u>same concentration</u> for the acid and the base 0.1M. Therefore:
If we divide:
If we do the Log of 1:
So:
With this in mind, the pH is 4.76.
I hope it helps!
Answer:
1600cm3
Explanation:
From the question given, we obtained the following:
Density = 2.70g/cm3
Mass = 4.32kg :we need to convert the mass to grams
Mass = 4.32kg = 4.32 x 1000 = 4320g
Volume =?
Recall : Density = Mass /volume
Volume = Mass /Density
Volume = 4320/2.70
Volume = 1600cm3
citric acid is in most foods