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3 years ago

Which pod shape in the P generation has the dominant trait?

Chemistry

1 answer:

san4es73 [151]3 years ago

7 0

Answer:

Smooth

Explanation:

Smooth is your answer

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3. Which plane’s velocity was greatest?

Likurg_2 [28]

Answer:

North American X-15

Explanation:

This is the fastest manned aircraft

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3 years ago

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HELPPPPPP Calculate the frequency of light with a wavelength 559nm

Alchen [17]

Answer:

Refer to the attachment

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3 years ago

What is the pH of a 5.09 x 10-5 M solution of NaOH?

Varvara68 [4.7K]

Answer: The pH of the solution is 9.71

Explanation:

1 mole of NaOH produces 1 mole of sodium ions and 1 mole of hydroxide ions.

We are given:

pOH of the solution = 7.2

To calculate the pH of the solution, we need to determine pOH of the solution. To calculate pOh of the solution, we use the equation:

$pOH=-\log[OH^-]$

We are given:

$[OH^-]=5.09\times 10^{-5}M$

Putting values in above equation, we get:

$pOH=-\log(5.09\times 10^{-5})\\\\pOH=4.29$

To calculate pH of the solution, we use the equation:

$pH+pOH=14\\pH=14-4.29=9.71$

Hence, the pH of the solution is 9.71

7 0

3 years ago

What characteristic frequencies in the infrared spectrum of your sodium borohydride reduction product will you look for to deter

kkurt [141]

Answer:

A)The characteristic frequency to look out for is 1720-1740 cm-1 (for C=O) for which will disappear in the end product but initially present in the reactant.

B)Characteristic frequency present in the infrared spectrum will be at a peak of 3300-3400 cm-1 which will be due to O-H stretch.

C)If the product is wet with water there will be no change in the infrared spectrum

Explanation:

The characteristic frequency to look out for is 1720-1740 cm-1 (for C=O) for which will disappear in the end product but initially present in the reactant.

Characteristic frequency present in the infrared spectrum will be at a peak of 3300-3400 cm-1 which will be due to O-H stretch.

If the product is wet with water there will be no change in the infrared spectrum

5 0

3 years ago

Calculate the density of a material that has a mass of 50.5g and a volume of 14.5cm3.

White raven [17]

Density = mass / volume = 50.5/14.5 = 3.48 $g/cm ^{3}$ .

4 0

3 years ago