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aksik [14]
3 years ago
5

What is the frequency of the sinusoidal graph?

Chemistry
1 answer:
Arisa [49]3 years ago
8 0

Answer:

For finding frequency, we need to first find the period of the graph.

The period of a sinusoidal graph is the time interval in which it repeats its pattern.

In the graph, we can see, after 1/period time, it repeats its pattern.

Hence the period of the graph is  \pi /2.

Now we need to find its frequency 1/\pi /2

The formula for frequency is 2/\pi

This is the answer

i hope you pass the assignment

try your best!

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maks197457 [2]
D could be the answer
7 0
3 years ago
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrange
lara31 [8.8K]

Answer:

-) 2-methylbut-2-ene

-) 2-methylbut-1-ene

-) 3-methylbut-1-ene

Explanation:

in this case, the hydration of alkenes is a <u>marknovnikov reaction</u>, this means that the "OH" group would be added in the <u>most substituted carbon</u> of the double bond. (Figure 1)

For 2-methylbut-2-ene the most substituted carbon is the <u>tertiary carbon</u> (the carbon in the right of the double bond), so we will obtain the desired molecule. In 2-methylbut-1-ene the most substituted carbon is again the <u>tertiary carbon</u> (the carbon in the bottom of the double bond), so we will obtain 2-methyl-2-butanol. Finally, for 3-methylbut-1-ene the carbocation would be formed on carbon 3, this is a secondary carbocation. We can obtain a most stable carbocation if we do a <u>hydride shift</u> (Figure 2). With this new molecule is possible to obtain 3-methylbut-1-ene.

6 0
4 years ago
There are eight diastereomers of 1,2,3,4,5,6-hexachlorocyclohexane. One of them is drawn. Draw the other seven in the cyclohexan
Marianna [84]

Answer:

Attached below diagram of the eight diastereomers

The Isomer that reacts so slowly is DIASTEREOMER 8

Explanation:

The Isomer that reacts so slowly is DIASTEREOMER 8 in an E2 reaction and this is because no pair of chlorine and hydrogen atoms can assume the anti-periplanar orientation that is preferred in an E2 elimination

attached below is Diagram of the eight diastereomers ( screen shot from my drawing tool )

3 0
3 years ago
How many molecules of water will be produced if 52.6 g of methane are burned?
dem82 [27]
When the balanced reaction equation of methane combustion is:

CH4 + 2O2 →CO2 + 2H2O

so, we can see that each 1 mole of methane combusted will give 2 moles of water as a product.

so first, we need to get the moles of methane =
                                         
                         = mass of methane /molar mass of methane 

                         = 52.6 g / 16.04 g/mol

                         = 3.28 moles

when 1 mol of methane produces→ 2 moles of water 

∴ 3.28 moles methane produces →   X moles of water 

∴ moles of water = 3.28 * 2 

                             = 6.56 moles

when each 1 mole of water has 6.02 x 10^23 (Avogadro's number ) individual molecules:

∴number of molecules of water = 6.56 * 6.02 x 10^23

                                                      = 3.9 x 10^24 molecules                                      
8 0
3 years ago
A sample of gas has a volume of 75.0 mL at 30.0 psi. Determine the pressure of the gas if its volume is changed to 15 mL and its
Assoli18 [71]

Answer:

5.995 psi

Explanation:

30 psi = 2.04 atm

75 mL = 0.075 L

15 mL = 0.015 L

0.075 L/ 2.04 atm = 0.015 L/x

0.075x = 0.0306

x = 0.408

0.408 atm = 5.995 psi

4 0
3 years ago
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