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pav-90 [236]
3 years ago
9

how would you prepare an absportion spectrum for a purified soltion of b-carotene dissolved in acetone using the materials and e

quipment outlined in the lab manual
Business
1 answer:
Roman55 [17]3 years ago
5 0

Answer:

Use a series dilution

Explanation:

The rationale behind the experiment is that the different substances absorb light at different wavelengths. To prepare an absorption spectrum for a purified solution of b-carotene dissolved in acetone, firstly, the \beta -carotene needs to be diluted enough to reach the light spec in the 20 tube. This will be done through a series of serial dilutions of a known concentration of the chlorophyll component. The bankmill will consist of acetone only and 1 blank will be needed. The range of the wavelength would be in the range of 400 - 700 nm. So, the intervals of 20 nm will suffice. Then, the OD for each wavelength will be used to determine the adsorption.

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What was the question?
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Calculating Returns Suppose a stock had an initial price of $87 per share, paid a dividend of $2.15 per share during the year, a
Lostsunrise [7]

When ending share price is $98, capital gain yield is 12.64% and dividend yield is 2.47%. Percentage total return is 15.11%. When ending share price is $78, percentage price return is  -7.87%.

<h3>What is the percentage total return?</h3>

The price return on a stock has two components; the price appreciation and the dividend yield.

Percentage price return = price appreciation + dividend yield

Price appreciation = (price in on year - initial price) / initial price

Dividend yield = dividend / initial price

Percentage price return when ending share price is $98:

Capital gain yield = [(98 /87) - 1 ] = 12.64%

Dividend yield = (2.15/87) = 2.47%

Percentage price return when ending share price is $78:

Capital gain yield = [(78/87)  - 1] = -10.34%

Dividend yield = (2.15/87) =2.47%

Percentage price return = -7.87%

To learn more about dividend yield, please check: brainly.com/question/27342287

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3 0
2 years ago
Kellogg's has several cereals targeted at different types of users. This is an example of multiple products aimed at multiple ma
AleksAgata [21]

Answer:

The correct answer is number "3": doesn't reduce quality or increase price.

Explanation:

Different groups of people within a market imply different needs and preferences pushing companies to diversify in order to fulfill them. Though, one of the main characteristics of that diversification must be accessibility. Companies expect to gain in sales thanks to the segmentation of the market but not necessarily by increasing the price of the new products being sold or decreasing their quality.

3 0
3 years ago
A company borrows $50,000 by signing a $50,000, 8% note that requires six equal payments of (round to the nearest dollar) at the
elixir [45]

Answer:

An information is missing on this question but I found the complete details as shown below;

"A company borrows $50,000 by signing a $50,000, 8% note that requires six equal payments of

<em>10816</em> (round to the nearest dollar) at the end of each year. (The present value of an annuity of six

annual payments, discounted at 8% equals 4.6229.) "

Explanation:

An annuity payment is made in equal amounts for a specified period of time in this case 6 years.

Since the equal payments are made annually and you are given the Present value of the annuity as $50,000 & discount factor of 4.6229, divide the PV by the discount factor. The value of equal payments should be equivalent to the $<em>10816 ;</em>

<em>=50,000 / </em>4.6229

= 10815.7217

Next, round the answer to the nearest dollar;

When rounded to the nearest whole number it becomes $10,816.

<em />

8 0
3 years ago
List any THREEshopping skill that you will follow.
Viefleur [7K]
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5. Determining want versus need
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There are 10 shopping skills that we can follow , you can choose any 3 from these and answer your question.
7 0
3 years ago
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