What is a common use of a graduated cylinder? A. Making solutions B. Weighing objects C. Measuring liquid volume accurately D. Storing chemicals 相关知识点: 试题来源: 解析 C。量筒的常见用途是准确测量液体体积。选项 A 是烧杯等的用途;选项 B 是天平的用途;选项 D 是试剂瓶的用途。反馈 收藏 ...
Recommended Lessons and Courses for You Related Lessons Related Courses Laboratory Techniques | Definition, Procedures & Examples Graduated Cylinder | Definition, Uses & Characteristics Liebig Condenser Overview, Distillation & Design Measuring Temperature in the Lab: Instruments & Process ...
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According to the present invention, “the plant seed volume” refers to “bulk volume” including voids when measurement is carried out using a graduated cylinder or the like. An aqueous common salt solution is mixed with soy sauce koji so that the common salt concentration in moromi prior to...
When the piston of the pump is at the lower dead centre, the intake orifice is open, and allows the fuel to fill the cylinder, while the downstream delivery valve is closed by the forces acting on it. Then, the closure of the intake orifice, due to the camshaft rotation, leads to ...
Employees at work in Seattle Municipal engineering department steno pool, 1959. Seattle archives, fair use. “In those days,” I explain, “companies like Sheaffer—or any big company—hired lots of young women as stenographers, hired them right out of high school. When an executive needed to...
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around, but don't think of them as being physical objects—a shape can be three-dimensional and take up physical room, such as a pyramid-shaped bookend or a cylinder can of oatmeal, orit can be two-dimensional and take up no physical room, such as a triangle drawn on a piece of ...
In a graduated cylinder, 90 mL of 0.9% sodium chloride was measured. To this solution was added 10 mL of ethanol to provide a 10% ethanol in saline (v/v) matrix. To a 50 mL volumetric flask was added 10 mL of the 10% ethanol in saline matrix. Using a bench-top scale, the matri...
Precisely 1 g of cream was placed on a graduated disc and covered with the top plate. A load of 200 g was applied every minute, up to a total of 1000 g. After each minute, the radii in four perpendicular directions were measured. The area (P) in cm2 was calculated using Equation ...