Read at the side of the graduated cylinder 相关知识点: 试题来源: 解析 B。解析:在使用量筒测量液体体积时,应该读取凹液面的底部对应的刻度。A选项读取凹液面顶部的刻度是错误的。C选项随机读取凹液面上的刻度是不准确的。D选项读取量筒侧面是错误的读数方式,无法得到准确的液体体积读数。
If a graduated cylinder wasn't calibrated correctly, how would that affect the results of a measurement? Laboratory Procedures The experimental procedures that are followed in laboratory sometimes give results different from the literature values. These different results may...
Graduated cylinders are thin glass tubes used to measure the volumes of liquids. The process of calculating volume using a graduated cylinder is straightforward, but certain steps must be taken to ensure an accurate reading and maintain a safe working environment. Once you familiarize yourself with ...
Read Your Millimeter Ruler Now that the "zero" mark on your ruler is lined up with one edge of the object you're measuring, read along the ruler until you reach the far edge of the object being measured. Because the marks on a mm ruler are quite small and aren't numbered, it may ...
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such as a cylinder or a box, because you'll need to calculate its volume. If you don't have a regular container, you can always fill it to the brim with water, catch the water that overflows when you immerse the object you're measuring and transfer the water to a graduated vessel....
Why is graduated cylinder more accurate? The accuracy of a graduated cylinder is higherbecause the graduations on the cylinder make it easier to more precisely fill, pour, measure, and read the amount of liquid contained within. Why is a pipette accurate?
A milliter of water is 20 drops. What volume of water, in liters, will be collected in 2.5 hours? Suppose you put 40.0 mL of water into a 100-mL graduated cylinder. After adding 100 glass beads to the cylinder, you read the water pl...
Rather, the Slushi achieves that chef's kiss chilled consistency via Ninja's RapidChill Technology, which involves an auger spinning around a cooling cylinder. This approach can take room temperature ingredients from liquid to, well, slushy, in under an hour (give or take a few minutes, depen...
Using a microspatula, transfer the contents to the appropriately numbered beaker. To the crushed tablet, add 100 mL of 0.5 M HCl. Use a stirring rod to help dis- solve the crushed tablet. Pour 5 mL of the antacid into a graduated cylinder. Add 0.5 M HCl to bring the final volume to...