3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4...
What is the concentration of a solution prepared by diluting 25.0 mL of a 4.50 M H2SO4 solution to a final volume of 1.00 L?
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...
What is the concentration of a KOH solution prepared by diluting 25.0 mL of a 6.0 M stock solution to a dinal volume of 1.00 L?
27) What is the concentration (molarity) of HCI in the final solution when 65 mL of a 9.0 M HCl solution is diluted with pure water to a total volume of 0.15 L? 28) How many milliliters of a 9.0 M H2SO4 solution are needed to make 0. 45 L of a 3.5 M solution? A) 0. 18 mL B) 1.2 mL C) 180 mL D) 1200 mL 29) A student prepared a stock solution by dissolving 15.0 g of...
29,31,32 please 29) A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150 mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution? A) O. 411 M B) 0.534 M C) 1.87 M D) 2.43 M 30) The mixing of which pair of...
An aqueous solution is prepared by mixing 240.0 mL of 1.700 M CoBr2 with 130.0 mL of 2.400 M LiBr and then diluting the mixture to a final volume of 1.000 L. What is the molar concentration of bromide ions in the final solution? Assume both salts dissociate completely.
2) What is the effect on the solution pH when 2.00 mL 1.00 M hydrochloric acid is added to 250.0 mL of 0.0500 M sodium acetate/acetic acid buffer pH 4.01? Note: acetic acid K, is 1.8 x105.
A 1.00 liter solution contains 0.35M acetic acid and 0.26 M potassium acetate. If 35.0 mL of water are added to this system, indicate whether the following statements are true or false. (Note the the volume MUST CHANGE upon the addition of water) A. The concentration of CH3COOH will decrease. True False B. The concentration of CH3COO" will remain the same C. The equilibrium concentration of H30* will increase D. The pH will increase E. The ratio of [CH3COOH]/ [CH3coo]...
a solution is prepared by combining the following: 200mL .1 M H2SO4 100mL .2 M NaOH 700mL .143 M K2SO4 The pH of the solution = 3.6 What is the Ka of HSO4? rißPIPd An aqueous solution of NaF is prepared by dissolving 0.350 mol of NaF in sufficient water to yield 1.0 L of solution. The pH of the solution was 8.93 at 25.0 °C. The Kb of F- is Styles Eupp You are asked to prepare 100 ml...