If 0.558 g KHP (molar mass 204.23 g/mol) were used to standardize 21.52 mL of a NaOH solution what is the concentration (M) of that NaOH solution given the following balanced reaction. KHP (s) + NaOH (aq) - NaKP (aq) + H2O (1) 0.254 0.127 O 2.54 0.558

8) What is the molarity of the solution containing 234 g NaCl in 3.00 L of solution? 9) Use the reaction: 2 AgNO3 (aq) + H2SO4 (aq) → Ag2SO4 (s) + 2 H2O (I) What volume of 0.123 M AgNO3 (aq) is needed to form 0.657 g of Ag2SO4 (s)?

Hw.10.

Consider the reaction: Li2S(aq) + Co(NO3)2(aq) →  2 LiNO3(aq) + CoS(s) What volume (in mL) of a 0.10 mol L-1 Li2S solution is required to completely react with 138 mL of 0.29 mol L-1 Co(NO3)2?

Consider the reaction of acetic acid (HC2H3O2) in vinegar with NaOH solution If 12.00 mL of vinegar requires 19.85 mL of 0.4500 M NaOH to reach the equivalence point. What is the molarity of the vinegar solution? (Hint, write the balanced chemical reaction.) Also, what is the mass% of acetic acid in vinegar if the density of vinegar is 1.00 g/mL?

Potassium hydrogen phthalate (KHP, HC8H4O4K) is used to standardize sodium hydroxide. If 25.00 mL of NaOH (aq) is required to titrate 0.8500 g KHP to the equivalence point, what is the concentration of the NaOH(aq)? (The molar mass of KHP = 204.2 g/mol) HC8H4O4-(aq)  +  OH-(aq)  →  C8H4O42-(aq)  +  H2O

Consider the following precipitation reaction: 2Na3PO4(aq) + 3CuCl2 (aq) → Cu3 (PO4)2 (s) + 6NaCl(aq) A Part A What volume of 0.156 M Na3PO4 solution is necessary to completely react with 92.8 mL of 0.103 M CuCl₂?

You are carrying out an experiment to determine the MW of a solid acid with the generic formula H3A. You weigh out 0.362 g of the solid acid in a weigh boat and transfer it to a 125 mL Erlenmeyer flask. After dissolving the acid in 25 mL of distilled water, you add 22.51 mL of 0.343 M Sr(OH)2 (aq) solution with a buret until your indicator changes color at the equivalence point. What is the molar mass of the solid acid in units of g/mole? Enter your answer with at least 4 significant digits (Canvas sometimes truncates zeros so assume that all numbers in this question have at least 4 sig figs (ie if Canvas tells you there are 12.3 mL assume 12.30 mL). This question will require precision so don't round any numbers until your final answer.

27.

Which of the following reactions are redox reactions?    i)   2 C6H6 (l)   +   15 O2 (g)     ->     12 CO2 (g)   +    6 H2O (g)                                    ii)   Pb(NO3) 2 (aq)    +    2 KCl  (aq)    -->    PbCl2 (s)    +   2 KNO3(aq)                     iii)   3 Mg (s)    +   2 FeCl3 (aq)    -->    3 MgCl2 (aq)   +   2 Fe (s)