| 1. | Glassware are usually connected by tightly fitting and greased ground glass joints.
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| 2. | Glassware are usually connected via tightly-fitting and greased ground glass joints.
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| 3. | The ends of the necks are usually conical ( female ) ground glass joints.
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| 4. | In the past, scientists constructed their own laboratory apparatus prior to the ubiquity of interchangeable ground glass joints.
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| 5. | Round bends of glass tubing with ground glass joints may be used to adjust the orientation of various vessels.
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| 6. | Ground glass joint ( or ground glass stoppers ) are commonly used with laboratory glassware, mainly because of their nonreactivity.
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| 7. | The apparatus consists of an electric heater with a digital thermostat and two or more bulbs connected with ground glass joints.
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| 8. | Sodium hydroxide is also mildly corrosive to glass, which can cause damage to glazing or cause ground glass joints to bind.
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| 9. | Round-bottom flasks often have one or more conically tapered ground glass joint openings, or " necks ".
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| 10. | Glass stoppers typically have a matching tapered inner ( or male ) ground glass joint surface, but often only of stopper quality.
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