Answer:
The percent chloride in the sample is 1.56%
Step-by-step explanation:
Hi there!
The molecular formula of silver chloride is AgCl. Its molar mass (the mass of a mol of AgCl) is 143.32 g/mol. Then the number of moles of AgCl obtained in the precipitated will be:
1.58 g · (1 mol/143.32 g) = 0.0110 mol
Then, since 1 mol AgCl contains 1 mol Cl⁻ (chloride), in the sample of compost there will be 0.0110 mol Cl⁻.
The mass of 0.0110 mol Cl⁻ is:
0.0110 mol Cl⁻ · (35.453 g /mol) = 0.390 g Chloride.
Then, the percent chloride in the sample will be:
0.390 g · (100 % / 25.0 g) = 1.56%
The percent chloride in the sample is 1.56%
1 ton is 2,000 lbs
9 x 2,000 = 18,000
So, 18,000 is equal to 9 tons.
Hope this helps. :)
So if you solve for x using the first equation, you get: x = 5y - 5.
From there you can plug that into the second equation which would give you:
7y-5y+5=-23
Simplifying from that point, you get y = -9.
Now that you have one of the values, you can solve for x by plugging it back into the equation we made (x = 5y - 5) and getting to the answer x = -40.
Answer:
x = 75 hope this helped
Step-by-step explanation:
The formula to calculate the distance between two points is given by
In this problem, we have the coordinates
(4, -1) and (9, 7)
substitute in the formula
<h2>The answer is 9.43 units</h2>