1 ph is equal to how much mv?
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One pH unit corresponds to 59.16 mV at 25°C, the standard voltage and temperature to which all calibrations are referenced.
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[H+]=10-7 , which we call a pH of 7. This means, for example, that a hydrogen-ion concentration of a solution with a pH of 4 is 10-4mol/l, meaning it contains 0.0001 mol of hydrogen ions in a solution of 1 liter.
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Calculate the water equivalence factor, F, in mg of water per mL of reagent, by the formula: W/V, in which W is the weight, in mg, of the water; and V is the volume, in mL, of the reagent required.
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A certain amount of univalent ions provides the same amount of equivalents while the same amount of divalent ions provides twice the amount of equivalents. For example, 1 mmol (0.001 mol) of Na+ is equal to 1 meq, while 1 mmol of Ca++ is equal to 2 meq.
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So to display the units or multiples of units for either Resistance, Current or Voltage we would use as an example: 1kV = 1 kilo-volt – which is equal to 1,000 Volts. 1mA = 1 milli-amp – which is equal to one thousandths (1/1000) of an Ampere. 47kΩ = 47 kilo-ohms – which is equal to 47 thousand Ohms.
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In the case of glucose, a 1 M solution would have 1 mole = 180 g dissolved in 1 L. So another way of saying that is 1 M glucose solution = 180 g/1000 ml = 0.18 g/ml Alternatively you could call it 18 % (w/v).
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If you take molarity (with units mol/L), and multiply it by the molar mass (with units g/mol), you get g/L. Just multiply g/L by 1000 to convert g to mg, and you have ppm (in mg/L of water).
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pKw = pH + pOH. As [H3O+] equals [OH-], then pH must equal pOH because these are just the negative logs of the respective concentrations, which are equal. Therefore, the equation becomes pKw = pH + pH = 2 x pH. Therefore, pH = pKw/2.
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How many milliamps in 1 volt/ohm? The answer is 1000. We assume you are converting between milliampere and volt/ohm. You can view more details on each measurement unit: milliamps or volt/ohm The SI base unit for electric current is the ampere.
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It is measured in millivolts (mV). By standard, 10 mm in height equals 1 mV. Therefore each 1 mm square on the vertical axis equals 0.1 mV and each large square, 0.5 mV. The horizontal axis measures time.
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The hydrogen ion [H+] concentration of a solution of pH 8 is 1 X 10-8 M.
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A volt can be stated in SI base units as 1 V = 1 kg m2 s−3 A−1 (one kilogram meter squared per second cubed per ampere).
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The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.
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To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].
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In medicine and biochemistry A certain amount of univalent ions provides the same amount of equivalents while the same amount of divalent ions provides twice the amount of equivalents. For example, 1 mmol (0.001 mol) of Na+ is equal to 1 meq, while 1 mmol of Ca++ is equal to 2 meq.
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1 mmH2O = 9.80665 pascals (Pa) mmHg value x 133.322 Pa = mmH2O value x 9.80665 Pa. mmHg value = mmH2O value x 0.0735559.
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The conversion from mg/Nm3 to ppm is done according the following formula: (mg/Nm3) * (22.4/MW) = ppm.