Base your answer on the information below and on your knowledge of chemistry.

A NaOH(aq) solution with a pH value of 13 is used to determine the molarity of an HCl(aq) solution. A 10.0-mL sample of the HCl(aq) is exactly neutralized by 16.0 mL of 0.100 M NaOH(aq). During this laboratory activity, appropriate safety equipment was used and safety procedures were followed.

Determine the pH value of a solution that has a H+(aq) ion concentration 10 times greater than the original NaOH(aq) solution.

1. c = 0.16 mol·L⁻¹; 2. pH = 12

Explanation:

HCl + NaOH ⟶NaCl + H₂O

1. Concentration of HCl

(a)Moles of NaOH

(b) Moles of HCl

The molar ratio is 1 mol HCl:1 mol NaOH.  

(c) Molar concentration of HCl

2. Hydronium ion in NaOH solution

In the original solution, pH = 13.

[H₃O⁺] = 10⁻¹³ mol·L⁻¹

At 10 times the concentration of hydronium ion

[H₃O⁺] = 10 × 10⁻¹³ mol·L⁻¹ = 10⁻¹² mol·L⁻¹

pH = -log[H₃O⁺] = -log(10⁻¹²) = 12

The pH decreases by one unit when the hydronium ion increases tenfold.

answer; ///(u-235); ///is the correct

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation: