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Answer:
The answer to your question is 175 gallons
Explanation:
Data
60% antifreeze solution volume = ? = x
25% antifreeze solution volume = 25%
Final concentration 50%
Process
0.6x + 0.25(70) = 0.5(70 + x)
Simplification
0.6x + 17.5 = 35 + 0.5x
0.6x - 0.5x = 35 - 17.5
0.1x = 17.5
x = 17.5/0.1
Result
x = 175 gallons
Explanation:
Polymers are extensively used innovative materials, which are originated nearly in each material used in our daily life. Polymers, a big class of resources, comprise of many small particles called monomers that are related composed to form long shackles and are used in a lot of products and goods that we use in daily life. The polymer named Polyethylene is used in plastic bags and film wraps. Polyvinyl Chloride ( PVC) is castoff in siding, pipes, flooring determinations. The synthetic polymer Polystyrene is used in cabinets, petri dishes, CD cases, plastic cutlery and in packaging. Polyvinyl acetate is used in adhesives and latex paints.
Explanation:
Given:
Number of atoms = 1.505 x 10²³
Let us solve for the number of moles and mass of this atom of sodium.
A mole of a substance is the amount of that substance that contains the avogadro's number of particles.
1 mole of Na = 6.02 x 10²³ atoms
Number of moles of Na =
= 0.25moles
Mass of Na = number of moles x molar mass
Molar mass of Na = 23g/mole
Mass of Na = 0.25 x 23 = 5.75g
learn more:
Number of moles brainly.com/question/1841136
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