Answer:
25.0g is the mass of sulfur
Explanation:
The sulfur and the oxygen are 50:50. That means there is 1 mole of S per mole of O.
To solve this question we need to convert the mass of O to moles, as moles of O = Moles of S, we can find the moles of S and its mass:
<em>Moles O = Moles S:</em>
12.5g O * (1mol / 16g) = 0.781 moles
<em>Mass S:</em>
0.781 moles * (32g / mol) =
<h3>25.0g is the mass of sulfur</h3>
Total volume = 80 mL + 20 mL = 100 mL = 0.10 L.
NaOH + HCl ----> NaCl + H2O.
0.08 L * 2.00 mol NaOH/L = 0.16 moles NaOH.
0.02 L * 4.00 mol HCl/L = 0.08 moles HCl.
0.16 - 0.08 = 0.08. There are 0.08 moles NaOH XS.
0.08 moles NaOH produces 0.08 moles OH-.
Concentration OH- = 0.08 moles / 0.10 L = 0.8 M.
Answer:
The amount of charge on a single proton is equal to the amount of charge possessed by a single electron. A proton and an electron have an equal amount but an opposite type of charge. Thus, if an atom contains equal numbers of protons and electrons, the atom is described as being electrically neutral.
<span>Balanced chemical equation is :
2LiCl(s) ----> 2Li(s) + Cl2(g)
</span>
Answer:
Scientists believe that convection circulation within the mantle helps continents to move. As heat from Earth's innermost layer—the core—transfers to the bottom layer of mantle rock, the rock warms, softens, and rises upward. ... This churning motion in the mantle appears to be a major factor in plate movement.
Explanation: