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Front

In the lab, all of the following statements are correct except: Don’t wear short trousers or skirts, Remove jewelry, Wear your lab coats after you enter the lab area, Don’t taste or sniff chemicals

Back

Wear your lab coats after you enter the lab area

Front

What laboratory equipment does this picture represent? Options: Watch glass, Evaporating dish, Buchner funnel, Wire screen

Back

Wire screen

Front

What is the result of the following calculation (use S.F) ?

Back

0.01

Front

What is the precision of the following (3.1, 5.55, 9.53, 1.1) respectively? Options: +-0.1 | +-0.11 | +-0.11 | +-0.1 , +-1.0 | +-1.00 | +-1.00 | +-1.0, +-0.1 | +-0.01 | +-0.01 | +-0.01, +-0.1 | +-0.01 | +-0.01 | +-0.1

Back

+-0.1 | +-0.01 | +-0.01 | +-0.1

Front

Precision is :

Back

Is how close a measured values are to each other, it is associates with random errors

Front

For this graduated cylinder, what is the precision?

Back

+- 0.25

Front

The SI unit of Density is:

Back

Kg/m3

Front

The properties that independent on amount of matter is _____ like _____?

Back

Intensive properties, density

Front

The density of (X) was calculated to be 1.78 g/cm3 at 25C. The mass (in mg) of 8.1 dm3 of (X) sample is ?

Back

1.4 * 10^7

Front

The relationship between density and temperature is inversely proportional

Back

True