If you have 2 moles of K+ for every mole of K2S and Molarity (M) is Moles per Liter. Then you know that you have .30 M of K2S. The way that you do that is setting up a series of conversion factors like so:
(.15moles k2s/liter) x (2 moles of K/ 1 mole of K2S) = .30 moles k/ liter.
The moles of K2S cancel out and you are left with moles of K per liter.
0.3M
.30 M
There is no such compound as k2S. But the % composition of K2S (potassium sulfide) is as follows:2 K = 2 x 39 = 78S = 32Total mass = 78 + 32 = 110 g%K = 78/110 (x100) = 70.9 % K%S = 32/110 (x100) = 29.1 % S
3.3 moles of K2S 3.3 moles of S-2 6.6 moles of K+1
Valency of k=1+ valency so4=2- after crisscrossing the valencies, we get- chemical formula- k2so4
Formula for potassium sulfide is K2S.
K2S + 2HCl --> 2KCl + H2S
If you have 2 moles of K+ for every mole of K2S and Molarity (M) is Moles per Liter. Then you know that you have .30 M of K2S. The way that you do that is setting up a series of conversion factors like so:(.15moles k2s/liter) x (2 moles of K/ 1 mole of K2S) = .30 moles k/ liter.The moles of K2S cancel out and you are left with moles of K per liter.
There is no such compound as k2S. But the % composition of K2S (potassium sulfide) is as follows:2 K = 2 x 39 = 78S = 32Total mass = 78 + 32 = 110 g%K = 78/110 (x100) = 70.9 % K%S = 32/110 (x100) = 29.1 % S
3.3 moles of K2S 3.3 moles of S-2 6.6 moles of K+1
Valency of k=1+ valency so4=2- after crisscrossing the valencies, we get- chemical formula- k2so4
K+1 S-2
Formula for potassium sulfide is K2S.
K2S + 2HCl --> 2KCl + H2S
K2S or potassium sulfide is an ionic compound.
K2S will have high boiling point than CH3Cl.
Potassium has a formal charge of +1, and sulfide has a formal charge of -2, so: K2S
yes
It is K2S.