what is the ka formula?
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General base dissociation in water is represented by the equation B + H2O --> BH+ + OH-. Ka and Kb values measure how well an acid or base dissociates. Higher values of Ka or Kb mean higher strength. General Ka expressions take the form Ka = [H3O+][A-] / [HA].
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KE = 1/2 * m * v^2 and p = mv. We can manipulate the KE formula to show where momentum is in it. In words we can say that the kinetic energy of a body is equal to the product of its momentum and one-half of its velocity.
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Formula to Convert Kilograms – Newtons To make a change between these two units of measurement, the formula to be used is kg x 9.807 = N which is the same conversion used automatically by the kg to N conversion calculator. As an example, 2kg = 19.6N and 5kg = 49N.
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The equilibrium expression for this reaction is Keq = [A-][H3O+]/[HA] = Ka For the acid ionization, Keq is written Ka and is called the acid dissociation constant. Ka values allow one to compare the strength of acids.
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Radius of Gyration is denoted by K and has the same dimensional formula as distance.
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Nominal Annual Interest Rate Formulas: The formula can be written as: r = m × [ ( 1 + i)1/m - 1 ], where i is the effective rate, r is the stated rate and m is the number of compounding periods.
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K factor is a ratio between the distance from the neutral bend line to the inside bend radius and the material thickness. K factor uses the formula K factor = δ/T. Y factor uses the formula Y factor = K factor * (Π/2).
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Therefore, pKa was introduced as an index to express the acidity of weak acids, where pKa is defined as follows. For example, the Ka constant for acetic acid (CH3COOH) is 0.0000158 (= 10-4.8), but the pKa constant is 4.8, which is a simpler expression. In addition, the smaller the pKa value, the stronger the acid.
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The simplified formula used in this calculator is found commonly in anesthesia and surgical textbooks, including Clinical Anesthesia cited here. Calculator performs the following equation: Average blood volume = Patient weight (kg) * (Average blood volume in mL/kg)
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Let x represent the data value, mu represent the mean, sigma represent the standard deviation, and z represent the z-score. Since the z-score is the number of standard deviations above the mean, z = (x - mu)/sigma. Solving for the data value, x, gives the formula x = z*sigma + mu.
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The Ksp expression for a salt is the product of the concentrations of the ions, with each concentration raised to a power equal to the coefficient of that ion in the balanced equation for the solubility equilibrium.
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Ka is acid dissociation constant and represents the strength of the acid. pKa is the -log of Ka, having a smaller comparable values for analysis. They have an inverse relationship. Larger the Ka, smaller the pKa and stronger the acid.
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The pKa value is one method used to indicate the strength of an acid. pKa is the negative log of the acid dissociation constant or Ka value. ... That is, the lower value indicates the acid more fully dissociates in water.
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The Mosteller formula, which is the easiest to calculate and remember, is the most commonly used formula in practice and in clinical trials. The Mosteller formula takes the square root of the height (cm) multiplied by the weight (kg) divided by 3600. Let's use the same examples above and calculate each patient's BSA.
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Understanding Kinetic Energy. Know the formula for calculating kinetic energy. The formula for calculating kinetic energy (KE) is KE = 0.5 x mv2. Here m stands for mass, the measure of how much matter is in an object, and v stands for the velocity of the object, or the rate at which the object changes its position.
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A newton is equal to 1 kg⋅m/s2, and a kilogram-force is 9.80665 N, meaning that 1 kgf/cm2 equals 98.0665 kilopascals (kPa). In some older publications, kilogram-force per square centimetre is abbreviated ksc instead of kg/cm2.
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The symbol k is a proportionality constant known as the Coulomb's law constant. The value of this constant is dependent upon the medium that the charged objects are immersed in. In the case of air, the value is approximately 9.0 x 109 N • m2 / C2.