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Why is the average mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
Which subatomic particle has such a small mass that is not used to calculate the atoms atomic mass?
electron
Why is the average atomic mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
What is the formula used to calculate the weight of an object if you were given the mass in kilograms?
weight=mass*gravity
Why do scientist measure mass and volume?
Scientists measure mass and volume to better understand the physical properties of substances. Mass helps determine the amount of matter in an object, while volume gives information about the amount of space the object occupies. By measuring both, scientists can calculate density, which is a crucial factor in identifying and characterizing different materials.
How is stoichiometry used to calculate energy absorbed when a mass melts?
Stoichiometry can be used to calculate the energy absorbed when a mass melts by considering the enthalpy of fusion, which is the amount of energy required to change a substance from solid to liquid at its melting point. By using the molar mass of the substance and the enthalpy of fusion, you can calculate the amount of energy needed to melt a specific mass of the substance.
What is mass of a cube?
The dimension of the side in cm are required to calculate the volume (cm3) and density in g/cm3 or specific gravity of the substance is then used to calculate the mass. Mass = Volume x Density
How is stoichiometry used to calculate the mass of a substance?
Unit conversion factors are used to convert between units of grams and moles.
How is stoichiometry used to calculate the mass of substance?
Unit conversion factors are used to convert between units of grams and moles.
How is stoichiometry used to calculate mass of a substance?
Unit conversion factors are used to convert between units of grams and moles.
Definition of equivalent mass?
Equivalent mass is a concept used in chemistry to calculate the mass of a substance that can react or combine with one mole of hydrogen ions or exchangeable ions. It is often used in acid-base and redox reactions to determine the equivalent weight of a substance.
How is the Hfusion used to calculate the energy needed to melt a mass of solid?
Grams solid mol/g Hfusion
What is density and how is it calculated?
Density is a measure of how much mass is contained in a given volume of a substance. It is calculated by dividing the mass of an object by its volume: Density = Mass / Volume. The units of density are typically expressed in grams per cubic centimeter (g/cm³) for solids and liquids, or kilograms per cubic meter (kg/m³) for gases.
How is the h fusion used to calculate the mass of a solid that 1 kj of energy will melt?
The enthalpy of fusion (ΔH fusion) is the amount of energy required to melt one mole of a solid at its melting point. To calculate the mass of a solid that 1 kJ of energy will melt, you can use the equation: mass = energy (in kJ) / enthalpy of fusion (in kJ/mol). It gives you the mass of the substance in moles, which you can then convert to grams using the molar mass of the substance.
What unit is used to calculate mass?
Kilograms (kg) is used to measure mass
How is stochiometry used to calculate energy released when a mass of liquid freezes?
Stoichiometry can be used to calculate the energy released when a mass of liquid freezes by accounting for the heat of fusion of the substance. By calculating the amount of heat energy required to freeze the liquid based on its specific heat capacity and mass, you can determine the energy released during the phase change. This can be expressed through the equation Q = m * h_f, where Q is the energy released, m is the mass of the substance, and h_f is the heat of fusion constant.
What is a formula used to calculate relative density?
The relative density of a substance X, relative to a substance Y isDensity of X/Density of Y= (Mass of X/Volume of X) / (Mass of Y/Volume of Y)If Y is water then the relative density is called the specific gravity.
