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3 years ago

Cabbage grows better in basic soil. In which TWO of the soil samples should cabbage grow well?

Chemistry

1 answer:

fomenos3 years ago

7 0

Answer and Explanation:

pH values less than 7 are considered acidic, while pH values greater than 7 are considered alkaline (basic).

So, look for soil samples that have a pH value greater than 7.

By looking at the chart, we can see that soil samples B and E would be the best soil to use for Cabbage growth (of the samples provided).

#teamseas #PAW (Plant And Water)

I hope this helps!

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Calculate the osmotic pressure of 5.0g of sucrose ssolution in 1L. Answer should be in Torr

Pani-rosa [81]

Answer: The osmotic pressure of 5.0g of sucrose solution in 1 L is 271.32 torr.

Explanation:

Given: Mass = 5.0 g

Volume = 1 L

Molar mass of sucrose = 342.3 g/mol

Moles are the mass of a substance divided by its molar mass. So, moles of sucrose are calculated as follows.

$Moles = \frac{mass}{molarmass}\\= \frac{5.0 g}{342.3 g/mol}\\= 0.0146 mol$

Hence, concentration of sucrose is calculated as follows.

$Concentration = \frac{moles}{Volume (in L)}\\= \frac{0.0146 mol}{1 L}\\= 0.0146 M$

Formula used to calculate osmotic pressure is as follows.

$\pi = CRT$

where,

$\pi$ = osmotic pressure

C = concentration

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

$\pi = CRT\\= 0.0146 \times 0.0821 L atm/mol K \times 298 K\\= 0.357 atm (1 atm = 760 torr)\\= 271.32 torr$

Thus, we can conclude that the osmotic pressure of 5.0g of sucrose solution in 1 L is 271.32 torr.

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3 years ago

A substance with a higher specific heat will take more energy to raise its temperature ?

Wewaii [24]

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Which of these are examples of negative tropism? (Select all that apply.)

irina1246 [14]

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3 years ago

Calculate the wavelength of the photon emitted when an electron makes a transition from n=6 to n=3. You can make use of the foll

Angelina_Jolie [31]

Answer: The wavelength of light is $1.094\times 10^{-6}m$

Explanation:

To calculate the wavelength of light, we use Rydberg's Equation:

$\frac{1}{\lambda}=R_H\left(\frac{1}{n_f^2}-\frac{1}{n_i^2} \right )$

Where,

$\lambda$ = Wavelength of radiation

$R_H$ = Rydberg's Constant = $1.097\times 10^7m^{-1}$

$n_f$ = Final energy level = 3

$n_i$ = Initial energy level = 6

Putting the values in above equation, we get:

$\frac{1}{\lambda }=1.097\times 10^7m^{-1}\left(\frac{1}{3^2}-\frac{1}{6^2} \right )\\\\\lambda =\frac{1}{914617m^{-1}}=1.094\times 10^{-6}m$

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4 years ago

Why is gas compressible??

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￼ Cabbage grows better in basic soil. In which TWO of the soil samples should cabbage grow well?

Cabbage grows better in basic soil. In which TWO of the soil samples should cabbage grow well?