Many substances have a pH of 5.5. For example, everyday rainwater has a pH from 5 to 6.5 usually.
PH 75 is the most acid.
pH 9 - pH 4 = pH 5 It is stronger by 5 pH.
Most acidic is substance of pH of 2, then of pH of 5 and the substance of pH 7 is neutral and the substance of pH 11 is basic
The lower the pH, the more acidic the solution is. Remember, pH 7.0 is H2O. As pH decreases below 7, the solution's acidity increases. As pH increase above 7, the basicity of the solution increases. Hence, in the choices you provided, pH 1.0 is most acidic.
pH 0 < acidic < pH 7 neutral = pH 7 pH 7 < basic < pH 14
On a scale from 1-14 making 1 more pH orange soda ranks on a avrage of 3
55 CThis enzyme works best at a temperature of 50 C and a pH of 12.If the enzyme will be above this temperature, it will denature.
] Description: Methacrylate-based coating materials with a variety of functional properties.Functionality Trade name Anionic polymer of methacrylic acid and methacrylates with a -COOH group Eudragit® L 100-55 - powder, spray dried L 30 D-55 which can be reconstituted for targeted delivery in the duodenum Eudragit® L 30 D-55 - aqueous dispersion, pH dependent polymer soluble above pH 5.5 for targeted delivery in the duodenumEudragit® L 100 - powder, pH dependent polymer soluble above pH 6.0 for targeted delivery in the jejunumEudragit® S 100 - powder, pH dependent polymer soluble above pH 7.0 for targeted delivery in the ileum.Eudragit® FS 30 D - aqueous dispersion, pH dependent polymer soluble above pH 7.0, requires no plasticizerCationic polymer with a dimethylaminoethyl ammonium group Eudragit E 100 - granules, pH dependent, soluble in gastric fluid up to 5.0, swellable and permeable above pH 5.0. Eudragit® E PO - powder form of E-100Copolymers of acrylate and methacrylates with quarternary ammonium group. Insoluble, High PermeabilityEudragit® RL 30D - aqueous dispersion, pH independent polymer for sustained release formulationsEudragit® RL PO - powder, pH independent polymer for matrix formulationsEudragit® RL 100 - granules, pH independentInsoluble, Low PermeabilityEudragit® RS 30D - aqueous dispersion, pH independent polymer for sustained release formulationsEudragit® RS PO - powder, pH independent polymer for matrix formulationsEudragit® RS 100 - granules, pH independentCopolymers of acrylate and methacrylates with quarternary ammonium group in combination with sodium carboxymethylcellulose Eudragit RD 100 - powder, pH independent for fast disintegrating films 2) Applications:Enteric Coatings Eudragit® L 100-55 or L 30 D-55 - delivery to the duodenum (pH > 5.0). Exact pH controlled drug release can be adjusted by a combination of polymers and coating thickness. Eudragit® L 100 - delivery to the jejunum (pH > 6.0).Eudragit® S 100 - delivery to the intestine (pH 6.0 to 7.5), site specific drug delivery can be achieved by combining with Eudragit® L types.Eudragit® FS 30 D - delivery to the colon (pH >7.0).Acryl-eze® --one step dry enteric coating system, soluble at pH 5.5Sustained Release Coatings Eudragit® RL and RS - release profile determined by the ratio of RL to RS polymers, and the film thickness applied. Taste Masking Eudragit® RD 100, pH independent, fast disintegrating film Eudragit® E 100 and EPO, pH dependent cationic polymer, soluble in gastric fluid up to pH 5.0, swellable and permeable above pH 5.0Rapidly disintegrating Films Eudragit® RD 100
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PH 75 is the most acid.
55 + 55 = 110 55 - 55 = 0 55 / 55 = 1 55 * 55 = 3025
pH=6,4
pH 9 - pH 4 = pH 5 It is stronger by 5 pH.
55% of 55 = 55% * 55 = 0.55 * 55 = 30.25
neither pH
Most acidic is substance of pH of 2, then of pH of 5 and the substance of pH 7 is neutral and the substance of pH 11 is basic
The lower the pH, the more acidic the solution is. Remember, pH 7.0 is H2O. As pH decreases below 7, the solution's acidity increases. As pH increase above 7, the basicity of the solution increases. Hence, in the choices you provided, pH 1.0 is most acidic.