May 2022 Day 1 Flashcards

1
Q

Most penetrating radiation

A

Gamma ray

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2
Q

Marie Curie discovered?

A

Polonium & Radium

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3
Q

Most abundant metal element in human body

A

Calcium

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4
Q

Gas law obeyed when the balloon expands as temperature rises

A

Charles Law

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5
Q

What happens to the pH of the soda when can was opened?

A

Increases

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6
Q

Size of cation and anion compared to its atom?

A

Anion (-) > Atom (neutral) > Cation (+)

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7
Q

Magic numbers

A

2, 8, 20, 28, 50, 82, 126

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8
Q

FOMO and SOMO Molecular Orbital Theory was published by

A

Kenichi Fuqui

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9
Q

Who discovered Helium?

A

Ramsay & Travers

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10
Q

What will be released when dopamine level was increased?

A

Tyrosine and Phenylalanine

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11
Q

A balloon filled with gas is placed in liquid nitrogen. Relating to gas laws, what will happen?

A

Lower pressure

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12
Q

Kapag may electric discharge, yung mercury vapor ay nagccombine saan?

A

Krypton, Argon, Neon

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13
Q

Rate of protonation problems given pH and pKa

A

HOW TO SOLVE:

Rate of protonation=Extent of Reaction
Extent of reaction= x/a
pH= -log(x) makukuha ang (x) by 10^(-pH)
Ka=10^(-pKa) then Ka= x^2/a-x makukuha na ang value ng a

Rate of Protonation=Extent of Reaction=x/a

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14
Q

Resistance to breakage

A

Tensile strength

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15
Q

Definition of protein

A

Polypeptides with >51 amino acids, with 10000 amu

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16
Q

Most important property of alkanes

A

Complete lack of polarity

17
Q

How many hydrogen bonds does Uracil and Adenine have?

A

2 Hydrogen Bonds

18
Q

When 1.61^10^-3 moles of phenolphthalein indicator is dissolved in one liter of water plus ethanol, estimate the concentration of equilibrium of [Hpth], [H3O+], and [phth-]

A

[Hpth]= 1.599x10^-3 M

[H3O+]= 8.0x10^-7 M

[phth-]= 8.0x10^-7 M

19
Q

Cerebrosides belong to

A

Sphingolipids

20
Q

Chymotrypsin amino acid sequence

A

Tryptophan, Tyrosine, Phenylalanine, or Leucine

21
Q

Nucleophile of chymotrypsin

A

Serine

22
Q

Which is true for constitutional isomers

A

Same molecular weight, same molecular formula