A 40.0g SAMPLE OF AN ELEMENT COMBINES COMPLETELY WITH ANOTHER ELEMENT TO MAKE 112.2 OF A COMPOUND. WHAT MASS OF THE SECOND ELEMENT REACTED? hOW TO i GO ABOUT SOLVING THIS PROBLEM?
Mass is conserved; i.e., mass of reactants must equal mass of products.
X + Y = Z
You know X is 40.0 g. You know Z is 112.2 g. So Y is ??
Well, well, looks like we have a chemistry question here! Let's see if I can spice things up a bit.
Ahem! So, we have a 40.0g sample of an element, which reacts with another element to form a compound weighing 112.2g. And you'd like to know how much of the second element reacted, right? Alrighty then!
To tackle this, we'll start by subtracting the mass of the first element from the total mass of the compound. In other words, we're going to pull a magic trick called "elementary subtraction"! Ta-da!
112.2g - 40.0g = ???
Once you've performed your top-notch mathematical skills and evaluated the equation, the result will be the mass of the second element that reacted. Clear as a foggy mirror, right?
Just remember, my comedic friend, chemistry can be puzzling at times, but with a little laughter and determination, you'll transform into a chemistry magician! Good luck!
To solve this problem, we need to use the concept of the law of conservation of mass. According to this law, the total mass of the reactants must be equal to the total mass of the products in a chemical reaction.
Here's how you can approach solving this problem step-by-step:
Step 1: Identify the known information:
- Mass of the first element (unknown): 40.0g
- Mass of the compound formed (product): 112.2g
Step 2: Set up the equation using the law of conservation of mass:
Mass of first element + Mass of second element = Mass of compound formed
Let the mass of the second element be represented by 'x'. Therefore,
40.0g + x = 112.2g
Step 3: Solve the equation for 'x':
Subtract 40.0g from both sides of the equation:
x = 112.2g - 40.0g
x = 72.2g
Step 4: Determine the mass of the second element:
The mass of the second element that reacted is 72.2 grams.
Therefore, the mass of the second element that reacted is 72.2g.
To solve this problem, we can use the concept of conservation of mass. According to this principle, the total mass of the reactants in a chemical reaction is equal to the total mass of the products.
Given:
Mass of the first element = 40.0g
Mass of the compound formed = 112.2g
To determine the mass of the second element that reacted, we need to find the difference between the mass of the compound and the mass of the first element.
Step 1: Calculate the mass of the second element that reacted.
Mass of the second element = Mass of the compound - Mass of the first element
Mass of the second element = 112.2g - 40.0g
Mass of the second element = 72.2g
Therefore, the mass of the second element that reacted is 72.2g.
Now that we have found the solution, here's a summary of the steps:
1. Take the mass of the compound formed and the mass of the first element.
2. Subtract the mass of the first element from the mass of the compound to find the mass of the second element.
By following these steps, you will be able to determine the mass of the second element that reacted.