How many molecules are there in 250.0 g of H₂O?

How many total atoms are there in 250.0 g of H₂O?

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https://drive.google.com/file/d/1pXc36rn_5DzGXIQazjFAG2Zg2cYUfx2g/view?usp=sharing

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https://helpinhomework.org/blog/how-to-obtain-answer-through-google-drive-link