How much does 1 milliliter of water weigh at standard conditions?

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Multiple Choice

How much does 1 milliliter of water weigh at standard conditions?

Explanation:
Mass equals density times volume. Water is defined to have a density of about 1 gram per milliliter under standard conditions, so 1 milliliter of water has a mass of about 1 gram. Temperature can shift density slightly (roughly 0.997 g/mL at room temperature, about 1.000 g/mL near 4°C), but for standard-condition approximations we use 1 g per mL. That’s why the mass is about 1 gram. The other numbers would imply densities far from water’s typical value.

Mass equals density times volume. Water is defined to have a density of about 1 gram per milliliter under standard conditions, so 1 milliliter of water has a mass of about 1 gram. Temperature can shift density slightly (roughly 0.997 g/mL at room temperature, about 1.000 g/mL near 4°C), but for standard-condition approximations we use 1 g per mL. That’s why the mass is about 1 gram. The other numbers would imply densities far from water’s typical value.

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