PLEASE ANSWER 12.4 g of sodium sulfate, Na2SO4, is dissolved to prepare 300.0 mL of solution. What is the amount concentration of sodium ions in the solution? The molar mass of sodium sulfate is 142.0428 g/mol. *
2.33 mol/L
0.582 mol/L
0.0873 mol/L
0.291 mol/L

What material does not melt at any temperature

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

What is the correct lewis dot structure for arsenic?