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Answer to What is written under the periodic table.

Sorry I made a mistake

Mg = 24.31 Chlorine isn't shown but it should be 35.45 so 2 chlorines are

2Cl = 70.9

Total 95.21 I said 166 and that is not even close. Sorry.

570 mL = 580 mL * 1 L / 1000 mL = 0.570 L

n = V * Molarity. The molarity is given as 2

n = 0.57 * 2 = 1.14 moles

needed mass = moles * molar mass

moles = 1.14

molar mass = 95.21

needed mass = 1.14 * 95.21 = 108.5. Check my number for chorine.

Left Panel

The number of moles of chemical does not change.

n = Concentration * Volume

Starting volume = 1.24 L

Starting concentration = 2.13 Moles / L

Ending Concentration = 1.6 moles / L

1.24 * 2.13 = V * 1.6

V = 1.24 * 2.13/1.6

V = 1.65 L

Middle Panel

Done. See first answer. Be sure and check the chlorine.

User Hiroki
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