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Ira Lisetskai [31]
3 years ago
11

What is the density of 19.2 g of oak that has a volume of 25.7 cm3?

Chemistry
1 answer:
andreyandreev [35.5K]3 years ago
7 0

Density = Mass/Volume

19.2/25.7

= 0.747 or 0.75

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Explanation:

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A solution was prepared by mixing 0.5000 m hno2 with 0.380 m no2-. ka = 4.58 x 10-4. calculate the ph of the solution. show work
adell [148]

pH of buffer can be calculated as:

pH=pKa+log[salt]/[Acid]

As ka = 4.58 x 10-4

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So, pH= -log(4.58*10^-4)+log((0.380)/0.500))

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The color change of an indicator is used to determine ​
lisov135 [29]

Answer:

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Explanation:

Please Mark me brainliest

3 0
3 years ago
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