Answer:
bro what Is this like I dont even kno
Answer:
Personally I think thatthr answer could be 5.38853503%, you can round it however you need.
Explanation:
There's a value of error between the noted square meters and the actual room's area. which is 4.23. Using the formula to get the percentage of error is getting the value (78.5 - 74.27 = 4.23) and dividing it by 78.5. Then just multiply it by 100 to get the percentage.
Answer:
Its seriously blurry can u take another picture
Explanation:
An extensive property is a property that deals with the amount of a substance. An extensive property of marker ink would be the volume of the ink in the pen.
An intensive property is a property about the type of substance you're looking at. So, an intensive property of marker ink would be the color of the ink.
Answer:
27.03 %
Explanation:
The formula for the calculation of moles is shown below:
Given: For calcium
Given mass = 10.0 g
Molar mass of calcium = 40.078 g/mol
<u>Moles of calcium = 10.0 g / 40.078 g/mol = 0.2495 moles</u>
According to the given reaction:
1 mole of calcium on reaction forms 1 mole of calcium hydroxide
Thus,
0.2495 moles of calcium on reaction forms 0.2495 mole of calcium hydroxide
<u>Moles of calcium hydroxide = 0.2495 moles</u>
Molar mass of calcium hydroxide = 74.093 g/mol
Thus, Mass = Moles * Molar mass = 0.2495 moles * 74.093 g/mol = 18.5 g
<u>Theoretical yield = 18.5 g</u>
<u>
Given experimental yield = 5.00 g
</u>
<u>% yield = (Experimental yield / Theoretical yield) × 100 = (5.00/18.5) × 100 = 27.03 %
</u>