(1). 500.0 mL of 0.110 M NaOH is added to 535 mL of 0.250 M weak acid (Ka = 6.08 × 10-5). What is the pH of the resulting buffer? HA(aq) + OH-(aq) = H2O(l) + A- (aq) (2). A 25.863 g sample of aqueous waste leaving a fertilizer )manufacturer contains ammonia. The sample is diluted with 74.612 g of water. A 14.159 g aliquot of this solution is then titrated with 0.1059 M HCl. It required 31.31 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.
Sorry, As you posted 2 questions at a time, As per HomeworkLib rules we can able to answer only one question at a time per post. Please post remaining question separately then only we can able to answer due to the rules we have. I think you will understand my concern, Please cooperate.
For any quires please do
comment in the comment box below. Hope it will helps you. Please
give Thumbs Up!! Thank you for posting the question, All the
best.
A 25.863 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 74.612 g of water. A 14.159 g aliquot of this solution is then titrated with 0.1059 M HCl. It required 31.31 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.
A 24.116 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 73.742 g of water. A 10.766 g aliquot of this solution is then titrated with 0.1083 M HCl. It required 30.63 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.
A 21.428 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 72.535 g of water. A 14.021 g aliquot of this solution is then titrated with 0.1054 M HCl. It required 29.55 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH, in the aqueous waste. wt% NH, = 0.037
A 22.209 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 80.511 g of water. A 13.858 g aliquot of this solution is then titrated with 0.1069 M HCl. It required 32.29 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste. wt% NH3= %
A 25.454 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 75.695 g of water. A 13.872 g aliquot of this solution is then titrated with 0.1053 M HCI. It required 29.89 ml of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste Number 0 0
500.0 mL of 0.110 M NaOH is added to 585 mL of 0.250 M weak acid (Ka = 2.27 x 10-5 M). What is the pH of the resulting buffer? HA(aq) + OH(aq) - H2O(l) + A-(aq) pH =
25.247 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is aluted with 72.054 g of water. A 11.243 g aliquot of this solution is then titrated with 0.1076 M HCI. It required 32.33 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste. Number wt% NH,-
500.0 mL of 0.140 M NaOH is added to 535 mL of 0.250 M weak acid (Ka = 4.06 × 10-5). What is the pH of the resulting buffer?
500.0 mL of 0.100 M NaOH is added to 535 mL of 0.250 M weak acid (Ka = 7.69 × 10-5). What is the pH of the resulting buffer?
A volume of 500.0 mL of 0.120 M NaOH is added to 605 mL of 0.250 M weak acid (Ka=3.72×10−5). What is the pH of the resulting buffer? HA(aq)+OH-(aq)----->H2O(l)+A-(aq)