PAST BOARDS Flashcards
How many significant figures does this number have: 104,000
3
Convert this number to PROPER scientific notation: 0.000780 x 10^-8
7.80 x 10^-12
Using proper scientific notation, how would you round the number 9.9813 x 10^-5 to two significant figures?
1.0 x 10^-6
Using the rule for multiplication and division, what is the answer to this calculation: (8.090 mg)÷(0.009 mL)
900 mg/L
The answer to the calculation below should be reported to how many significant figures?
[(97+19.5)÷(434.97)] =
2
The law that regulates the practice of chemist and chemical technician in the Philippines
RA 10657
Convert 110.00°C to °F:
43.333°F
A chemist measured the mass of a wire using an analytical balance with the least count 0.001 g. The measured value should be recorded as:
5.320 cm
What do we mean by ethics?
-Moral judgments
-Rules or standards governing a profession
-Determinants of what is right or wrong
The study of __________, as contrasted with legal, obligations is called ethics.
Moral
The study of __________, as contrasted with legal, obligations is called ethics.
Moral
What do you call a conbination of two or more materials which retain their individual properties and can be separated by physical means
mixtures
A polar solute usually dissolves in a polar solvent and a non polar solute dissolves in a non polar solvent. This is __________.
“like dissolves like” rule
