How many milliequivalents (mEq) are 900 mg CaCl2 in 100 mL solution?
Options:
162 mEq 

122 mEq 

243 mEq 

81 mEq What is the milliosmolarity (mOsmol/L) of a 0.9% sodium chloride intravenous solution? Options:

How many milliequivalents (mEq) are 900 mg CaCl2 in 100 mL solution?
CaCl2 > Ca+2 + 2Cl
mol = mass/MW = 900/(110.98 )= 8.10
Meq = 8.1/0.1 = 81 meq
Ca+2 , Cl , Cl > 3 ions
so
Meq = 3*81 = 243 meq
What is the milliosmolarity (mOsmol/L) of a 0.9% sodium chloride intravenous solution?
NAcl > na+ + Cl
i = 2 ions
P = i*M*R*T
0.9% >
assume = 1 liter solution
so.
0.9/100*1000 = 9 g of NaCl
mol = mass/MW = 9/58 =0.15517 mol
If 1 L  [Nacl] = 0.15517 M
> 1000 = 0.15517 *1000 =155 mOsmol/L
2x ions = 308 mmol /L
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