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Readme [11.4K]
3 years ago
6

Which statement accurately describes Italy's terrain?

Chemistry
1 answer:
MissTica3 years ago
4 0
"A. Fertile plains make it possible for farmers to grow a variety of crops." Italy's ability to grow a variety of crops aided in Rome's power over the world for many years, by providing lots of nutrients for its citizens and items to trade. 

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how many significant figures are in the measurement 0.0056 ke?
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In the Penny Lab that we ran, what is the independent variable? Question 1 options: the soap the number of water drops the penny
motikmotik

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I'd say it's the number of water drops.

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Describe the three-point solution.
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¿Qué es la ciencia? ¿Qué importancia tiene la ciencia para el desarrollo de la humanidad y de la vida? AYUDA PORFAAAAAAAA
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Explanation:

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Find the hydrogen ion concentration of a saturated solution of calcium hydroxide whose ph is 13. 1
salantis [7]

The pH of the solutions is 12.67.  

     

<h3>What is pH of a Solution?</h3>

pH is the measurement of how acidic or basic a solution is. The range of pH values is from 0 to 14. Lower pH values mean higher acidity, while higher pH means higher basicity. If the pH value is equal to 7, then the solution is neutral.

To calculate the pH of the solution, a few approaches are possible. Here, the pOH of the solution is calculated first using the molar concentration of  OH^{-1} ions. Because pH + pOH = 14, the pH of the solution can then be calculated by subtracting pOH from 14.

Because 2 moles of OH^{-1} ions are formed per mole of Ca(OH)_{2}dissolved, the pOH of a saturated Ca(OH)_{2} solution at  20^{.C} is,  

Concentration (C_{OH}) of OH^{-1} ions,

          C_{OH}   = 0.02335 mol Ca(OH)_{2}/L  X 2 mol OH^{-1} /1 mol Ca(OH)_{2}

            C_{OH} = 0.0467 mol OH^{-1}/L

*pOH of saturated Ca(OH)_{2} solution,

                                   pOH = -log [C_{OH}]

                                   pOH = -log [0.0467 mol OH^{-1}/L ]            

                                  pOH = 1.33  

*pH of saturated Ca(OH)_{2} solution,

                                   pH = 14 - 1.33

                                   pH = 12.67

Hence, the pH of the solutions is 12.67.

Learn more about  pH of the solutions here:

brainly.com/question/6988456

#SPJ4

4 0
2 years ago
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