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lesantik [10]
2 years ago
15

The sum of 32/4 and 3​

Chemistry
2 answers:
son4ous [18]2 years ago
4 0

Answer:

11

Explanation:

32/4+3=32/4+12/4[taking LCM]

so,32+12/4=44/4

44/4=11

Tju [1.3M]2 years ago
3 0

Answer:

32/4 + 3

8 + 3

= 11

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A sodium hydroxide solution is made by mixing 8.70 g NaOH with 100 g of water. The resulting solution has a density of 1.087 g/m
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Answer:

Mass fraction = 0.08004

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Explanation:

Given, Mass of NaOH = 8.70 g

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The formula for the calculation of moles is shown below:

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Thus,

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The formula for the calculation of moles is shown below:

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Moles\ of\ water= 5.5508\ mol

So, according to definition of mole fraction:

Mole\ fraction\ of\ NaOH=\frac {n_{NaOH}}{n_{NaOH}+n_{water}}

Mole\ fraction\ of\ NaOH=\frac {0.2175}{0.2175+5.5508}=0.0377

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