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Umnica [9.8K]
3 years ago
6

A tropical cyclone is a weather event that causes strong winds and heavy rainfall. What is the source of energy for a tropical c

yclone? A. strong trade winds B. low relative humidity C. high pressure systems D. warm ocean water
Chemistry
1 answer:
maks197457 [2]3 years ago
6 0

Tropical cyclone, also called typhoon or hurricane, an intense circular storm that originates over warm tropical oceans and is characterized by low atmospheric pressure, high winds, and heavy rain.

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In this experiment, a calibration curve, often called a Beer's Law plot, will be made. A calibration curve should have which of
mr_godi [17]

Answer:

B, C  and F are true, see explanation below.

Explanation:

Beer´s law is given by the formula:

A = εcl,  where   A = Absorbance,

                           ε = molar extinction coefficient,

                           c = concentration in mol/L (M), and

                           l = path length of the cuvette containing the sample,

                               

Now the usefulness of this relation is that if we plot the Absorbance vs  concentration, we get a straight line since the Beer equation has the form  y = mx + b.After the slope and y intercept have been determined, we can determine an unknow concentration of the substance by measuring its absorbance.

This relation is valid for low concentration, and  there are deviations from it.

We are now ready to answer this question with this brief introduction:

A. Absorbance is plotted on the x-axis

False, we plot the absorbance in the y-axis.

B. Concentration is plotted on the x-axis.

True, we vary the concentration and read the absorbance so the plot is Absorbance vs Concentration.

C. The x- and y-axes should be labeled with units as well as quantities

This is true for our plot to be useful and correct.

D. Concentration is plotted on the y-axis

False, for all the reasons stated above.

E. In a hand-plotted graph, individual lines should be drawn between adjacent points

False, in a hand plotted graph we will pass the line between all the points determined as close as to produce the best line where we can read values for the absorbance for a given concentration.

F. Absorbance is plotted on the y-axis

True

G. The command for getting an equation is "Add Trendline" in Microsoft Excel.

False, the command adds only the line of the best fit to our data, to get the equation of the line we have to specify it by choosing it in the options for the format of trendline.

6 0
3 years ago
What is the noble gas notation for carbon?
Shkiper50 [21]

<span>The noble gas notation for Carbon is [He] 2s2 2p<span>2</span></span>

4 0
3 years ago
What volume would 3 moles of hydrogen gas occupy at stp?
Alchen [17]
22.4 L<span>So, if 1 mole occupies 22.4 L, the imediate conclusion is that a bigger number of moles will occupy more than 22.4 L, and a smaller number of moles will occupy less than 22.4 L. In your case, 3 moles of gas will occupy 3 times more volume than 1 mole of gas.</span>
3 0
3 years ago
How many moles are equal to 89.23g of calcium oxide, CaO?
Katen [24]

1.59moles

Explanation:

Mass  of CaO = 89.23g

Unknown

Number of moles = ?

Solution:

The mole is a unit of measurement in chemistry used to delineate the number of particles an atom contains.

A mole of a substance contains the avogadro's number of particles.

Number of moles = \frac{mass}{molar mass}

Molar mass of CaO = 40 + 16 = 56g/mol

  Number of moles = \frac{89.23}{56} = 1.59moles

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

8 0
3 years ago
What are abiotic factors of the ecosystem​
dalvyx [7]

Answer:

Abiotic factors are the non-living components of the ecosystem, including its chemical and physical factors.

<em><u>Hope</u></em><em><u> this</u></em><em><u> helps</u></em><em><u>.</u></em>

7 0
2 years ago
Read 2 more answers
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