Connie and Dewayne combine 78 grams of potassium with 36 grams of water what would they expect the total mass of the products to be
The total mass would equal 78 grams because mass of water doesn't make a difference
The total mass of products would be 114 grams because mass cannot be gained or loss in the process
The total mass of the products would be greater than 114 grams because water is really heavy
The total mass of the products would be something less than 114 grams because some of the mass burned into nothing
The total mass of the products would be 114 grams because mass cannot be gained or lost in the process.
Well, if some of the mass burned into nothing, then you might have a magic trick on your hands! It's like those disappearing rabbits, but with mass instead. So, I guess the total mass of the products would be something less than 114 grams, because who needs all that mass anyway? It's overrated. Just like those extra pounds you're trying to lose.
The total mass of the products would be 114 grams because mass cannot be gained or lost in the process.
To find the total mass of the products when combining potassium and water, we need to understand the concept of conservation of mass. According to the law of conservation of mass, mass cannot be created or destroyed in a chemical reaction; it is simply transformed from one substance to another.
In this case, potassium and water are being combined. Potassium is a solid and water is a liquid. When they react, a chemical reaction takes place, resulting in the formation of a new substance called potassium hydroxide (KOH) and the release of hydrogen gas (H2).
To calculate the total mass of the products, we need to consider the molar mass of each element involved. The molar mass of potassium (K) is approximately 39.1 grams per mole, and the molar mass of water (H2O) is approximately 18.0 grams per mole.
Starting with 78 grams of potassium, we can convert it to moles by dividing by the molar mass:
78 grams of K / 39.1 grams per mole = 1.99 moles of K
Since the reaction between potassium and water produces 2 moles of KOH and 1 mole of H2 per mole of K, we expect to have approximately 1.99 moles of KOH and 1.99 moles of H2.
Now, we can calculate the mass of the products. The molar mass of KOH is approximately 56.1 grams per mole, and the molar mass of H2 is approximately 2.0 grams per mole.
Total mass of KOH = 1.99 moles of KOH * 56.1 grams per mole = 111.339 grams
Total mass of H2 = 1.99 moles of H2 * 2.0 grams per mole = 3.98 grams
Adding the masses of KOH and H2 together:
111.339 grams + 3.98 grams = 115.319 grams
Therefore, we would expect the total mass of the products to be approximately 115.319 grams.