The 'e' slide referred to in your lab is a basic training tool used in microscopy education. By creating and examining this slide, students learn how to properly operate a microscope.
In the provided lab scenario, the type of slide made using the letter 'e' likely refers to a common activity in microscopy training. The 'e' slide is not specific to any microorganisms or tissues, but rather, is often used for educational purposes to help students learn how to operate a microscope and focus on small, detailed objects. This type of slide is created by writing or printing the letter 'e' onto a clear glass slide, and then attempting to view it under the microscope, thereby learning how to adjust the focus and observe details.
Although the information about the Petroff-Hausser counting chamber and the Snap Lab was provided, that doesn't seem to be relevant here, as your lab focused specifically on making and using a slide with the letter 'e'.
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To determine how much of a 144g sample of carbon-14 will remain after 1.719 x 10^4 years, you can use the formula for exponential decay:
\[N(t) = N_0 \cdot \left(\frac{1}{2}\right)^{\frac{t}{T}}\]
Where:
- \(N(t)\) is the remaining amount after time \(t\).
- \(N_0\) is the initial amount.
- \(t\) is the time that has passed.
- \(T\) is the half-life.
In this case, \(N_0\) is 144g, \(t\) is 1.719 x 10^4 years, and \(T\) is the half-life of carbon-14, which is 5,730 years.
Plug these values into the formula:
\[N(t) = 144g \cdot \left(\frac{1}{2}\right)^{\frac{1.719 \times 10^4\text{ years}}{5,730\text{ years}}}\]
Now, calculate:
\[N(t) = 144g \cdot \left(\frac{1}{2}\right)^{\frac{3}{2}}\]
\[N(t) = 144g \cdot \left(\frac{1}{2} \cdot \frac{1}{2} \cdot \frac{1}{2}\right)\]
\[N(t) = 144g \cdot \frac{1}{8}\]
Now, multiply 144g by 1/8 to find the remaining amount:
\[N(t) = \frac{144g}{8} = 18g\]
So, after 1.719 x 10^4 years, only 18g of the 144g sample of carbon-14 will remain.
Answer:it is 580
Explanation:
I had the answer on my quiz
b flour
c baking soda
Answer:
The answer is C: Baking Soda