Essays on Gravimetric

After Giving Birth

NR451 RN Capstone Course Term and Year After Giving Birth Even though postpartum hemorrhage (PPH) is the leading cause of mortality after giving birth, most health care facilities do not have a standardized measures to assess blood volume loss and rely only on visual estimations for assessing and documenting blood loss. Consequently, blood loss below 250 mL tends to be overestimated, whereas blood loss above 2,000 mL tends to be underestimated (Bamberg et al., 2015). Inaccurate diagnosis of PPH delays treatment and increases mortality risk among intrapartum and postpartum women, so the purpose of the proposed nursing plan ...

If a fuel mixture can be represented by the general formula CxH2x, prove that the stoichiometric gravimetric air/fuel ratio is 14.8:1.

The combustion reaction for a given fuel mixture will look as follows:

CxH2x + 1.5x(O2 + 3.76N2) → xCO2 + xH2O + 1.5x*3.76N2 The molar ratio is 1.5x:1, to find the gravimetric ratio, the masses of the air and fuel should be found. This can be done by multiplying molar ratio with molar weights of the fuel and air. m(fuel) = 12*x + 2x*1 = 14x m(air) = 1.5x(16*2 + 3.76*14*2) = 1.5x*137.28 = 205.92x The gravimetric stoichiometric air/fuel ratio then is 205.92x:14x = 14.71:1 The dry exhaust gas analysis from an ...

Section

Introduction The purpose of this lab was to find the amount and percentage of nickel present in an unknown compound using the "mole method." The unknown nickel compound was dissolved in water and treated with dimethylglyoxime and ammonia solutions to obtain the precipitate of known chemical composition (bis(dimethylglyoximo)nickel(II)), which then was weighed and using this data the amount and percentage of nickel in the initial compound were found. The insoluble Ni(DMG)2 complex is formed in two steps. First, the dimethylglyoxime reacts with hydroxide ion formed through the ammonia hydrolysis to produce dimethylglyoximate anion: C4H8N2O2( ...