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EQUIVALENTS AND FORMULAS. cubic foot of water weighs 62.4 lb. gallon of water weighs 8. 34 lb. liter of water weighs 1,000 gm. mg/L = 1 part per million (ppm) ug/L = 1 part per billion (ppb) mile = 5,280 feet (ft) yd = 3 feet. yd3 = 27ft3. acre (a) = 43,560 square feet (ft2) acre foot = 325,829 gallons. cubic foot (ft3) = 7.48 gallons (gal)
8 mar 2020 · The general number of equivalents formula is. E = MW/charge number. Where MW is the molecular weight of the compound and charge number is the number of proton- or hydroxide-equivalents the compound contains. Examples with different acids and bases help illustrate how this works in practice.
28 lip 2022 · Calculate the watts to heat a water amount if you know the time required and heater efficiency. And many more things! Keep reading to learn how to calculate water heating by hand, using the different water heating formulas.
3 paź 2024 · Calculation Formula. The water heater efficiency (\(E_{wh}\)) is calculated using the formula: \[ E_{wh} = \frac{m \times C \times \Delta T}{Q} \times 100 \] where: \(E_{wh}\) is the Water Heater Efficiency (%), \(m\) is the mass of the water in kilograms (kg), \(C\) is the specific heat capacity of water (\(4.186 \, \text{J/kg}^\circ C\)),
24 sty 2016 · The formula for equivalent weight should be simple from this point. Equivalent weight=Molar weight/n-factor
Our water heating calculator can help you determine both the amount of heat required to raise the temperature of some H 2 O and the time it will take. It considers the heat capacities of all three states of matter, so it also works if you want to melt the ice or boil water.
16 sie 2023 · The theoretical amount of energy needed to heat a substance such as water can be calculated based on the mass, temperature rise and specific heat of the substance. Q = m*C p * ∆T. Where: Q is the energy required (joules, J); m is the mass of the substance (g) (calculated from volume (V) and density (p) of water, 1 g/ml); C p is the specific ...
