Question

weight of 18ml of water at 4 degree celcius​

Answer 1

Answer:

Desity of water is approximately 1 g/cc . So 18 ml of water weights 18 gm. So it contain 6.022*10^23 molecules ie avagadro number of molecules.

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Answer 2

The weight of 18ml of water at 4 degrees celsius is approximately 0.176N

Given:

Volume of water = 18 ml

The temperature of water = 4° C

To find: Weight of water

Solution:

We know that the maximum density of water is at 4°C, which is 1 g/cm³.

Also, d = m/v

[where d= density, m = mass, v = volume]

⇒ 1 g/cm³ = $\frac{m}{18 ml}$

Converting using the formula 1 ml = 1 cm³, we get

1 = m/18

⇒ m = 18 g

⇒ mass of the water = 18g

⇒ weight of the water = mg = 18 g(9.8 m/s²)

⇒ weight of water ≈ 0.176 N

∴ Weigh of 18 ml of water at 4 degrees celsius is approximately 0.176 N.

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