NAGELHOUT CHAPTER 15
Answer CHEMISTRY AND PHYSICS FOR NURSE
ANESTHESIA
1. Solubility
Answer The ability of one substance to dissolve in another at a given temperature and pressure (for anesthesia
think of gas dissolved into a liquid)
2. Converting Fahrenheit to Celsius
Answer F= (9/5)C+ 32
3. ppm (parts per million)
Answer An expression of concentration denoting micrograms (10"6 g) of solute per gram of solution
PPM = (g of solute/g of solvent) X 1,000,000
4. significant figures rules
Answer Non-zeros are always significant Any Zeros between
sig figs are significant
Zeros to the right of the decimal point preceding no zeros numbers are NOT significant (I.e 0.000431)
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,Trailing zeros are NOT significant (200 = 1 sig; 25,300 = 3 sig)
5. Convert Celsius to Kelvin
Answer K = C + 273.15
6. Common conversion factors
Answer 1 Kg=2.2lbs 1 in = 2.54cm
7. Percent concentrations
Answer X% concentration = Xg/100mL
To easily convert X% concentration to mg/mL simply move the decimal point to the right one spot (i.e 0.9% NaCl = 9mg
NaCl/mL)
8. 1:1,000 means
Answer 1g/1000ml (g:mL)
9. Max dose lidocaine with Epi
Answer 7mg/kg
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, 10. Max dose lidocaine w/o Epi
Answer 4.5mg/kg
11. Elements
Answer A molecule composed of one kind of atom; cannot be broken into simpler units by chemical
reactions.
12. Compounds
Answer Molecules that contain more than one element
13. Molecule
Answer Two or more atoms held together by covalent bonds.
14. Solutes
Answer substance dissolved in a solution
15. solvent (n)
Answer substance, usually liquid, able to dissolve another substance (water, ethanol, acetone)
16. Solutions
Answer Homogeneous mixtures; Two or more substances
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Answer CHEMISTRY AND PHYSICS FOR NURSE
ANESTHESIA
1. Solubility
Answer The ability of one substance to dissolve in another at a given temperature and pressure (for anesthesia
think of gas dissolved into a liquid)
2. Converting Fahrenheit to Celsius
Answer F= (9/5)C+ 32
3. ppm (parts per million)
Answer An expression of concentration denoting micrograms (10"6 g) of solute per gram of solution
PPM = (g of solute/g of solvent) X 1,000,000
4. significant figures rules
Answer Non-zeros are always significant Any Zeros between
sig figs are significant
Zeros to the right of the decimal point preceding no zeros numbers are NOT significant (I.e 0.000431)
1/
21
,Trailing zeros are NOT significant (200 = 1 sig; 25,300 = 3 sig)
5. Convert Celsius to Kelvin
Answer K = C + 273.15
6. Common conversion factors
Answer 1 Kg=2.2lbs 1 in = 2.54cm
7. Percent concentrations
Answer X% concentration = Xg/100mL
To easily convert X% concentration to mg/mL simply move the decimal point to the right one spot (i.e 0.9% NaCl = 9mg
NaCl/mL)
8. 1:1,000 means
Answer 1g/1000ml (g:mL)
9. Max dose lidocaine with Epi
Answer 7mg/kg
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, 10. Max dose lidocaine w/o Epi
Answer 4.5mg/kg
11. Elements
Answer A molecule composed of one kind of atom; cannot be broken into simpler units by chemical
reactions.
12. Compounds
Answer Molecules that contain more than one element
13. Molecule
Answer Two or more atoms held together by covalent bonds.
14. Solutes
Answer substance dissolved in a solution
15. solvent (n)
Answer substance, usually liquid, able to dissolve another substance (water, ethanol, acetone)
16. Solutions
Answer Homogeneous mixtures; Two or more substances
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