An aliquot (28.7 mL) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample? Question 4 options: A) 0.173 B) 7.28 C) 1.64 D) 0.207 E) 0.414
An aliquot (28.7 mL) of a KOH solution required 31.3 mL of 0.118 M HCl for...
please answer all questions and show work? Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 17) An aliquot (28.7 ml.) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample? A) 1.64 B) 7.28 C) 0.173 D) 0.207 E) 0.414 18) Which of the following would require the largest volume of 0.100 M sodium hydroxide solution for neutralization? A) 10,0 mL of 0.0500 M phosphoric acid...
answer all plz 6. An aliquot (30.7 mL) of a LioH solution neutralization required 31.3 mL of0.1250 M HCI for Wlar mass (e of KOH was in the original sample? 7, Hlow many moles of Lit and so Li2so4? ions are present in 257 ml. of a 2.65 M solution of
please show work? Question 33 (8 points) A 28.7 mL sample of KOH required 31.3 mL of 0.118 M H2SO3 to neutralize it. How many grams of KOH were in the original sample? 2KOH + H2SO3 ----> K2503 + 2H20 Please leave a space between the number and unit in your answer.
a For the following solution, calculate the normality: 28.7 mL of 0.173 M HCl diluted with water to a total volume of 78.1 mL Normality = b For the following solutiola calculate the normality: 0.179 M H3PO4 Normality = For the following solution, calculate the normality 0.00278 M Ca(OH). Normality = Submit Answer Try Another Version 10 item attempts remaining
A 50.0 mL solution of 0.150 M KOH is titrated with 0.300 M HCl. Calculate the pH of the solution after the addition of the following amounts of HCl. d) 18.0 mL HCl e) 24.0 mL HCl g) 26.0 mL HCl h) 29.0 mL HCl
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
please solve what you can and show your work. I'm not really good in chemistry??♀️ Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
9. What is the hydroxide-ion concentration in a solution formed by combining 200 mL of 0.16 M HCl with 300. mL of 0.091 M NaOH at 25°C? HCl(aq) + NaOH(aq) + NaCl(aq) + H2O(1) 10. What is the pH of a solution prepared by dissolving 0.241 L of HCl(g), measured at STP, in enough water such that the total volume of the solution is 2.00 L? (R = 0.0821 L.atm/(K.mol)) (Use gas law equation to calculate Mole of HCl dissolved...
A 3.50 g sample of KOH (at 22.3 °C) is dissolved in a 5.50 M HCl solution in a coffee cup calorimeter. The total volume of the resulting solution is 250 mL and its temperature rises from the initial value of 22.3 °C (before KOH addition) to 37.8 °C. Calculate ΔH (in kJ/mol) of the dissolution and neutralization of KOH. Assume that the density of the solution is 1.00 g/mL and that the specific heat of the solution is the...
What is the molarity of the acetic acid solution if 28.7 mL of a 0.215 M KOH solution is required to titrate 23.0 mL of a solution of HC2H3O2?