The balanced chemical reaction:
K2SO4 + O2 = 2KO2 + SO2
Assuming that the reaction is complete, all of the potassium sulfate is consumed. We relate the substances using the chemical reaction. We calculate as follows:
7.20 g K2SO4 ( 1 mol / 174.26 g) ( 1 mol O2 / 1 mol K2SO4 ) ( 32 g / 1 mol ) = 1.32 g O2 consumed in the reaction.
Isotopes are atoms of the same element that have the same number of protons with different numbers of neutrons, hence they have different masses.
the natural abundance of these elements vary, we are given percentages in which these isotopes exist.
average atomic mass is the weighted average atomic mass of an atom relative to 1/12th the mass of a C-12 atom. the average atomic mass can be calculated by taking the sum of the masses of isotopes multiplied by the respective abundance percentage
average atomic mass = (235.044 amu x 80%) + (<span>238.051 amu x 20%)
= 188.04 + 47.61
= 235.65 amu
the average atomic mass is 235.65 amu </span>
Science is the knowledge and study of the structure and behaviour of the physical and natural world, whiles technology is more about the TOOLS used and applied to study the science. They are related because technology is beneficial in science, like in experiments or investigations.
Example:
Science is - structure of a leaf.
Technology is - microscope.
Hope I helped!
Answer:
It sends an alarm to the building and saying there is a fire somewhere in the building.
0.9mole of Fe
Explanation:
Given parameters:
Mass of Fe = 50g
Unknown:
Number of moles of iron = ?
Solution:
The number of moles is the particle that contains the avogadro's number of particles.
It is a unit for reporting chemical measurement.
To find the number of moles of a substance;
Number of moles =
Molar mass of Fe= 56g/mol
Number of moles = = 0.9mole of Fe
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Number of moles brainly.com/question/1841136
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