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Calculating moles and mass of given compounds
224138 Calculating Moles and Mass: Example Problem Several brands of antacids use Al(OH)3 to react with stomach acid, which contains primarily HCl:
alpha Al(OH)3(s) + beta HCl(aq) = gamma AlCl3(aq) + delta H2O(l)
Balance the equation.
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Density of solids and liquids
All we are doing is replacing the mass with 100g, given the calculated density we got for #4, and calculating, this time, for the volume of water that this object would displace.
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Calculating moles using volume, density, molar mass, pressure and temperature
28981 Calculating moles using volume, density, molar mass, pressure and temperature See attached file for clarity.
Acid rain is a growing worldwide environmental problem.
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The Molecular Formula of a Hydrocarbon
Next calculating the moles of C and H for a in a 100-g sample gives using the general formula for calculating moles giving the mass.
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A Beginner's Guide to Calculating Density
230504 A Beginner's Guide to Calculating Density This posting provides a general definition of density as well as two example to calculate density. The first example is based on finding the density of a cube by calculating the cube's volume.
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Mass of surface of a hemisphere
For the hemisphere, we have , , , , , , then the density function is , then the mass of the hemisphere is
This provides an example of calculating mass of a surface of a hemisphere.
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Calculating Mass and Decay: Example Questions
314391 Calculating Mass and Decay: Example Questions Part 1:
(7-atomic mass)Be decays with a half-life of about (53-atmic mass) d. It is produced in the upper atmosphere, and filters down onto the Earth's surface.
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Determining Angular Acceleration Example
392400 Determining Angular Acceleration Example The 40-kg wheel has a radius of gyration about its mass center O of kO = 300 mm. When the wheel is subjected to the couple moment as shown, determine its angular acceleration.
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Rotation: tension and tangential velocity
it takes for a mass to make a full rotation, and drawing a diagram illustrating the problem.