GUIDE (UNR) QUESTIONS & VERIFIED
ANSWERS PASSED ALREADY
GRADED A+
Every measurement made in the laboratory is really an ... - Correct Answer ✔✔ An
Approximation
A ... is a glass vessel calibrated to deliver a precisely known value of liquid at a given
temperature. - Correct Answer ✔✔ Pipet
The arithmetic mean of A and B is ... - Correct Answer ✔✔ (A+B)/2
In the laboratory we can weigh ... - Correct Answer ✔✔ Objects at Room Temperature
Density is defined as mass per unit / by ... - Correct Answer ✔✔ Volume
True/False: The number of significant figures is not important when we record the
results of a measurement. - Correct Answer ✔✔ False
True/False: 0.1mg is equal with 0.0001g of mass. - Correct Answer ✔✔ True
True/False: The density of water does not change at different temperatures. - Correct
Answer ✔✔ False
True/False: You must never use your mouth to fill a pipet. - Correct Answer ✔✔ True
True/False: Equipment accuracy is in the form of +/-n (e.g., +/-0.2 Degrees Celsius for a
thermometer). - Correct Answer ✔✔ True
What is this? - Correct Answer ✔✔ Bunsen burner
What is this? - Correct Answer ✔✔ Utility clamp
What is this? - Correct Answer ✔✔ Test tube
What is this? - Correct Answer ✔✔ Pinchclamp
What is this? - Correct Answer ✔✔ Erlenmeyer flask
What is this? - Correct Answer ✔✔ Beaker
, What is this? - Correct Answer ✔✔ Florence flask
What is this? - Correct Answer ✔✔ Graduated cylinder
What is this? - Correct Answer ✔✔ Weighing bottle
What is this? - Correct Answer ✔✔ Clay triangle
What is this? - Correct Answer ✔✔ Medicine dropper
What is this? - Correct Answer ✔✔ Buret
What is this? - Correct Answer ✔✔ Volumetric flask
What is this? - Correct Answer ✔✔ Crucible tongs
What is this? - Correct Answer ✔✔ Funnel
What is this? - Correct Answer ✔✔ Deflagrating spoon
What is this? - Correct Answer ✔✔ Test tube brush
What is this? - Correct Answer ✔✔ Evaporating dish
What is this? - Correct Answer ✔✔ Test tube holder
What is this? - Correct Answer ✔✔ Pipet
What is this? - Correct Answer ✔✔ Wire Gauze
What is this? - Correct Answer ✔✔ Ring stand, iron ring, and double buret clamp
What is this? - Correct Answer ✔✔ Crucible and cover
What is this? - Correct Answer ✔✔ Triangular file
What is this? - Correct Answer ✔✔ Stirring rod
What is this? - Correct Answer ✔✔ Spatulas
420mg to grams is? - Correct Answer ✔✔ 0.42g
1.6km to cm is? - Correct Answer ✔✔ 160,000cm
What are 3 common lab safety rules? - Correct Answer ✔✔ 1. Always wear goggles