Tonic Mass

C12-0004. Tonic water contains 31 ppm by mass of quinine (C20 H24 O2 N2). Calculate the mole fraction of quinine in tonic water. 

Intramuscularly administered products typically form a depot in the muscle mass from which the drug is slowly absorbed. The peak drug concentration is usually seen within 1-2 hours. Factors affecting the drug-release rate from an IM depot include the compactness of the depot (the less compact and more diffuse, the faster the release), the rheology of the product, concentration and particle size of drug in the vehicle, nature of the solvent or vehicle, volume of the injection, tonicity of the product, and physical form of the product. 

Tonic. An ambiguous term referring to a substance thought to have overall positive medicinal effect of an unspecified nature. Tonsil. A small, rounded mass of tissue, especially of lymphoid tissue. 

M.10 The bitter-tasting compound quinine is a component of tonic water and is used as a protection against malaria. When a sample of mass 0.487 g was burned, 1.321 g of carbon dioxide, 0.325 g of water, and 0.0421 g of nitrogen were produced. The molar mass. of quinine is 324 g-mol-1. Determine the empirical and molecular formulas of quinine. 

Continual dribble of fecal matter through the anus is prevented by (1) tonic constriction of the internal anal sphincter, a circular mass of smooth muscle that lies immediately inside the anus, and (2) the external anal sphincter, composed of striated voluntary muscle that both surrounds the internal sphincter and also extends distal to it the external sphincter is controlled by the somatic nervous system and therefore is under voluntary control. 

Blood tests should be ordered to rule out syphilis in cases of a tonic pupil. If there is associated pain, the patient should receive a workup for an intracranial lesion or orbital mass. 

It is important to note that while the density of states increases mono-tonically with energy [Eq. (7B.5)], as shown in Fig. 7.20a, the probability of occupancy of the higher levels drops rapidly (Fig. 7.20b), such that in the end the filled electron states are all clustered together near the bottom of the conduction band (Fig. 7.20c). Finally, note that for many ceramic materials, the effective masses of the electrons and holes are not known, and the assumption that m — ml — ml is oftentimes made. 

MASS OP SULPHATE OP IRON. Synonym.—Tonic Mass. 

Documented effects Berries of wild strawberry possess tonic, anti-inflammatory, diuretic, antiscorbutic, choleretic, and hypoglycemic properties (Maznev 2004). An alcohohc extract of the aboveground parts increased the cellular mass of the spleen and thymus, protected the mucus membrane of the stomach and decreased stress in cyclophosphane-treated mice, as well as exhibited antiulcer and stress-protective effects (Aksinenko et al. 2003 Klimentova et al. 2005). 

Ultraflex II MALDI-TOF mass spectrometer (Bruker Dal-tonics, Billerica, MA, USA) with a solid-state UV laser. 

Figure 17.3 shows the rate of polymerization plotted versus monomer conversion for the free radical solution polymerization of methyl methacrylate. Unlike a more common reaction in which the rate of reaction falls mono-tonically with conversion, the rate of reaction rises with conversion due to the onset of the gel effect. Thus, the system can be thought of as autocatalytic. At high conversion, the polymerization becomes monomer starved and the rate of polymerization falls to zero. At a fixed residence time, there must be a specific rate of polymerization to produce a given monomer conversion. The mass balance is represented by the dotted lines in Figure 17.3. The slope of the mass balance line will vary with operating conditions bnt it will always pass through the origin since at zero reaction rate the monomer conversion is zero. Inspection of Fignre 17.3 reveals that for mass balances (operating lines) with slopes between the two dotted lines, three steady states exist since an intersection of the reaction rate curve and the operating line defines a steady state.

---