A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% NaCl in water. What volume of the saline solution must be administered to the patient in order to deliver 7.7g of NaCl?

840 mL  

Explanation:

I assume the solution is 0.92 % (w/v) NaCl in water.  

petroleum? coal maybe?

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm