Answer:
to be precise in the calculations
Explanation: for example your cell phone has a gps inside it, the gps is responsible for providing direction data like a compass, if the equipment is not calibrated, the gps will not find the correct direction.
Basis: 1 g of the compound
Calculate for the masses of gold (Au) and oxygen (O) in the compound by multiplying the decimal equivalent of the percentages to the mass of the basis.
Au: m = (0.8914)(1) = 0.8914 g
O: m = (0.1080)(1) = 0.1080 g
Then, calculate for the number of moles of the elements by dividing their masses with their molar masses which are 196.97 g/mol for gold and 16 g/mol for oxygen.
Au: n = 0.8914 g/ (196.97 g/mol) = 4.5255 x 10^-3 mols
O: n = (0.1080 g)/ (16 g/mol) = 6.75 x 10^-3 mols
Then, divide the number of mols with the lower number between the two, this is 4.5255 x 10^-3 mols.
Au = 4.5255 x 10^-3 / 4.5255 x 10^-3 moles = 1
O = 6.75 x 10^-3 mols/ 4.5255 x 10^-3 moles = 1.5
The equation therefore is AuO3/2. Eliminate the fraction by multiplying the numbers by 2. This gives us the final answer of,
<em> Au2O3</em>
Answer:
Strip
Explanation:
Strip mining removes Earth in long strips from the top to reveal the coal. This earth to be removed is known as 'overburden'. The overburden from the first strip is referred to as out-of-pit dumping. Strip mining is a part of surface mining.
Strip mining destroys forests, landscapes, forests and wildlife habitats as trees and plants are removed from the mining area.
Therefore,
this describes the Strip coal mine.
Which mathematical relationship allows calculation of the equilibrium constant of a reaction if you know the standard change in Gibbs Free Energy ΔG is related to Q by the equation ΔG=RTlnQK. If ΔG < 0, then K > Q, and the reaction must proceed to the right to reach equilibrium
<h3>What is
Gibbs Free Energy?</h3>
The maximum amount of work that may be accomplished by a thermodynamically closed system at constant temperature and pressure can be determined using the Gibbs free energy (also known as Gibbs energy; symbol: displaystyle G). Additionally, it offers a prerequisite for any processes like chemical reactions that might take place in such circumstances.
The maximum amount of non-expansion work that can be taken from a closed system (one that can interchange heat and work with its surroundings but not matter) at fixed temperature and pressure is known as the Gibbs free energy change, which is measured in joules in SI. This maximum is only possible with a fully reversible method.
To learn more about Gibbs Free Energy from the given link:
brainly.com/question/9179942
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Ocean currents move both warm and cool water across many miles. Warm water can be carried to a cooler place like Alaska. It can bring warmer temperatures as well as warmer water to Alaska. Just like the warm water, cold water can do this as well. If cold water moves from Alaska to The Gulf of Mexico, it can cause the water and air to cool. As air travels over the ocean water vapor can condense into it. The current’s flow depends on what variables are in play. There are many different currents that connect together to heat up and cool off as they move.
