At 20 °C to prepare saturated salt solution which its density is 1.2 g cm-3, 357 grams of NaCl is added to one liter of water (concentration of 26.3%).
Dear Hitesh Chavda Dissolving 720 grams of salt in 600 ml of water, appears rather impractical. Although my initial calculations led to the same result.Thank you for taking the time to answer the question.
The (molar) solubility of the salt (S) for a pure NaCl aq. sol. (mol / dm3) can be obtained as I have shown elsewhere at this forum: https://www.researchgate.net/post/What_is_the_maximum_concentration_of_sodium_chloride_in_water