If 22.34 mL of HCl were needed to reach the endpoint of a titration that utilized 0.0202 moles of Na2CO3, what is the molar concentration of the HCl?
If 22.34 mL of HCl were needed to reach the endpoint of a titration that utilized...
To reach the second endpoint for the titration of 10.00 ml of a thiosulfuric acid unknown solution, 14.32ml of 0.08751 M NaOH is needed. Look up the molecular formula for maleic acid and write a balanced chemical equation for its reaction with NaOH. What is the concentration of the thiosulfuric acid solution? 3.
The concentration of HCl can be determined by titration with a primary standard such as sodium carbonate (Na2CO3). The titration reaction is CO3 2 H H2OCO2 What is the concentration of HCl if 35.5 mL of HCl was needed to to react with 0.201 g of Na2CO3 to reach the end point? concentration:
The titration of 23.30 mL of HCl solution of unknown concentration requires 13.00 mL of a 0.200 M NaOH solution to reach the equivalence point. What is the concentration of the unknown HCl solution in M? Express your answer in moles per liter to three significant figures. M(HCl)M(HCl) = _____________
a. If a titration of a sample of HCl dissolved in water required 33.56 mL of 0.0358 M NaOH, how many moles of HCl were in the sample? b. What is the molarity of a solution that results from dissolving 0.895 g of Na2CO3 in 50 mL of water, then diluting the mixture by a factor of 1:25?
4)
how many moles of MnO4- are requiered to reach the endpoint in this
titration?
a)0.002706 moles
b)312.2moles
c)0.01353 moles
d)0.06764 moles
In a flask, 2.055 g of FeSO4 is placed in a 250 Erlenmeyer flask to which 75 m 5 mL of 3 M sulfuric acid has been added. The molar mass of FeSO4 is 15199 reaction is shown below: Balanced equation: 5Fe (aq) + MnO4 (a + 8H - 5Fe(n) + Mn() * * Which species is oxidized...
Calculate the concentration of an unknown acid if 23.50 mL of 0.250 M NaOH was needed to reach the endpoint for the titration of 15.00 mL of the unknown diprotic acid. H2A(aq) + 2 NaOH(aq) → Na2A(aq) + 2 H2O(1) Select one: 0 a. 0.160 M O b. 0.783 M O C. 0.392 M O d. 0.319 M O e. 0.196 M
Part A The titration of 23.40 mL of HCl solution of unknown concentration requires 12.18 mL of a 0.140 M NaOH solution to reach the equivalence point. What is the concentration of the unknown HCl solution in M? Express your answer in moles per liter to three significant figures. We ΑΣΦ ? M(HCI) M Submit Request Answer
A 21.70 mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration of a 3.06 g sample of vinegar. a. Calculate the number of moles of acetic acid in the vinegar sample. Calculate the mass of acetic acid in the vinegar sample. The molar mass of acetic acid is 60.05 g/mol. b. Calculate the percent by mass of acetic acid in the vinegar sample. Assume the density of the vinegar is 1.00 g/mL. Express...
If a 40 mL of 0.250 M calcium hydroxide is needed to reach the endpoint of 10.0 ml of a hydrochloric acid solution. What is the molarity of the hydrochloric acid solution?
By titration, it is found that 17.7 mL of 0.187 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution. HCl concentration: _______ M