I assume that is 28.0 grams.
28.0 grams MgCl2 (1 mole MgCl2/95.21 grams)
= 0.294 moles magnesium chloride
==========================Now,
One mole Mg 2+ = 0.294 moles Mg 2+ ions
=============================
2 moles Cl - = 0.588 moles Cl - ions
=========================
Na2CO32 * 2 = 4 moles sodium.===========================
Yes, NH4Br is an ionic compound. It is made up of ammonium ions (NH4+) and bromide ions (Br-), which are held together by ionic bonds.
When ammonium bromide (NH4Br) is dissolved in water, it forms ammonium ions (NH4+) and bromide ions (Br-). The reaction can be represented as: NH4Br (s) -> NH4+ (aq) + Br- (aq).
NH4Br is the salt containing the weak acid NH4+. So it's weak.
This process is known as dissociation. It involves breaking apart a compound into its individual ions, which are positively or negatively charged particles that are formed when the compound dissolves in a solvent. This dissociation allows the ions to move freely in solution and carry out various chemical reactions.
When Na2CO3 dissociates, it produces 3 moles of ions: 2 moles of Na+ ions and 1 mole of CO3^2- ions. So, if you have 0.5 moles of Na2CO3, you would produce 1.5 moles of ions in total.
Na2CO32 * 2 = 4 moles sodium.===========================
Yes, NH4Br is an ionic compound. It is made up of ammonium ions (NH4+) and bromide ions (Br-), which are held together by ionic bonds.
When ammonium bromide (NH4Br) is dissolved in water, it forms ammonium ions (NH4+) and bromide ions (Br-). The reaction can be represented as: NH4Br (s) -> NH4+ (aq) + Br- (aq).
Ions are obtained by dissociation in water.
NH4Br is the salt containing the weak acid NH4+. So it's weak.
This process is known as dissociation. It involves breaking apart a compound into its individual ions, which are positively or negatively charged particles that are formed when the compound dissolves in a solvent. This dissociation allows the ions to move freely in solution and carry out various chemical reactions.
To determine which solution contains the largest number of ions, we need to calculate the total moles of ions produced by each solution. NaOH (100ml of 0.1M): 0.1 moles/L × 0.1 L = 0.01 moles of NaOH → produces 0.01 moles Na⁺ and 0.01 moles OH⁻ = 0.02 moles of ions. BaCl2 (50ml of 0.2M): 0.2 moles/L × 0.05 L = 0.01 moles of BaCl2 → produces 0.01 moles Ba²⁺ and 0.02 moles Cl⁻ = 0.03 moles of ions. Na3PO4 (75ml of 0.15M): 0.15 moles/L × 0.075 L = 0.01125 moles of Na3PO4 → produces 0.03375 moles Na⁺ and 0.01125 moles PO4³⁻ = 0.045 moles of ions. Therefore, Na3PO4 contains the largest number of ions.
NH4Br is an ionic compound. It is made up of ammonium (NH4+) and bromide (Br-) ions, which are held together by ionic bonds.
That would be 2 moles of OH- (hydroxide) ions because there are 2 of them associated with each 1 of the group II metal.
Dissociation of a base produce hydroxyl ions.
The dissociation of water molecules into hydrogen ions and hydroxide ions is best represented by the equation: H2O -> H+ + OH-.