Question

How many milliliters of 8.00 M KOH must be added to neutralize the following solution? a mixture of 0.240 M LiOH (25.0 mL) and 0.200 M HBr (75.0 mL)

Write balanced net ionic equation for the following reaction:

HBr(aq)+Ca(OH)2(aq)→?

Classify each of the following reactions as a precipitation, acid-base neutralization, or oxidation-reduction.

a.) Hg(NO3)2(aq)+2NaI(aq) → 2NaNO3(aq)+HgI2(s)

b.) H3PO4(aq)+3KOH(aq) → K3PO4(aq)+3H2O(l)

1. Write a net ionic equation for the following reaction
Na2CrO4(aq)+Pb(NO3)2(aq)→?

2. Write a net ionic equation for the following reaction
AgClO4(aq)+CaBr2(aq)→?

3. Write a net ionic equation for the following reaction
ZnCl2(aq)+K2CO3(aq)→?

4. What is the molecular formula of salicylic acid?

5. Assume that you have 1.50 mol of H2 and 3.50 mol of N2. How many grams of ammonia (NH3)can you make, and how many grams of which reactant will be left over?
3H2+N2→2NH3

mNH3 =

mH2 =

mN2 =

6. What is the molarity of an HNO3 solution if 69.0 mL is needed to react with 25.0 mL of 0.150 MKOH solution? The equation is
HNO3(aq)+KOH(aq)→KNO3(aq)+H2O(l)

7. What mass of carbon dioxide is produced from the complete combustion of 1.10×10⁻³ g of methane?

8. What mass of water is produced from the complete combustion of 1.10×10⁻³ g of methane?

9. What mass of oxygen is needed for the complete combustion of 1.10×10⁻³ g of methane?

Can you please show me how to do these problems? Thank You So Much!

Answer 1

Write balanced net ionic equation for the following reaction:

2 HBr(aq)+Ca(OH)2(aq)→ CaBr2 (aq) + 2H2O (l)

net ionic :   2 H+ (aq) + 2OH- (aq) ------------------> 2H2O (I)

Classify each of the following reactions as a precipitation, acid-base neutralization, or oxidation-reduction.

a.) Hg(NO3)2(aq)+2NaI(aq) → 2NaNO3(aq)+HgI2(s) ---------------->precipitation

b.) H3PO4(aq)+3KOH(aq) → K3PO4(aq)+3H2O(l)----------------->acid-base neutralization

1. Write a net ionic equation for the following reaction

Na2CrO4(aq)+Pb(NO3)2(aq)→ PbCrO4 (s)   + 2NaNO3 (aq)

net ionic : Pb+2 (aq) + CrO4-2 (aq) ----------------> PbCrO4 (s)

2. Write a net ionic equation for the following reaction

2 AgClO4(aq)+CaBr2(aq)→2 AgBr (s) + Ca(ClO4)2

net ionic : 2 Ag+ (aq) + 2Br- (aq) ----------------> AgBr (s)

3. Write a net ionic equation for the following reaction
ZnCl2(aq)+K2CO3(aq)→ ZnCO3 (s)   + 2 KCl (aq)

net ionic : Zn+2 (aq) + CO3-2 (aq)-----------------> ZnCO3 (s)