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Rus_ich [418]
3 years ago
7

Which value indicate the strongest base? 1. pH of 8 2. pH of 5 3. pH of 12

Chemistry
1 answer:
uranmaximum [27]3 years ago
6 0
Hello there! 

On a pH scale, strong bases usually are ranged at 12-14, so your answer is 3. pH of 12. Hope I helped! 

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A sample of aluminum weighs 100 grams and has a volume of 37.03 cm. What is the density of
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2.7005 g/cm²

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3 years ago
What are different type of plastids explain them?​
BARSIC [14]

Answer:

Explanation:

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A mixture of H2 and water vapor is present in a closed vessel at 20°C. The total pressure of the system is 755.0 mmHg.
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7 0
2 years ago
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How much does the air weigh within a column that is 1 square inch in area that extends from sea level all the way to the top of
fredd [130]

Answer:

14.7 lbs

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Air pressure is the weight of the air above us. It is approximately 14.7 pounds or lbs per square inch at sea level. It means that an air column weights 14.7 lbs, 1 square inch in diameter, reaching all the way up to the top of the atmosphere.

5 0
3 years ago
A solution contains 3.95 g of carbon disulfide (CS2, molar mass = 76.13 g/mol) and 2.43 g of acetone ((CH3)2CO, molar mass = 58.
Feliz [49]

Answer:

The solution is not ideal and shows a positive deviation from Raoult’s law since Psolution (experimental) > Psolution (actual).

Explanation:

Number of moles of CS2 = 3.95g/76.13gmol-1 = 0.0519 moles

Number of moles of acetone = 2.43g/58.08gmol-1 = 0.0418 moles

Total number of moles = 0.0937 moles

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From Raoult’s law;

PCS2 = 0.5538 × 515 torr = 285.207 torr

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Total pressure = 285.207 torr + 148.1052 torr = 433.3 torr

6 0
3 years ago
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