What is the formula of a compound whose aqueous solution shows violet flame emmision color and prodouces CO2(g) upon addition of hydrochloric acid?
Rb^+ and Cs^+ carbonates give violet flames.up on addition
of HCl they produce CO2
Rb2CO3 + 2HCl -------> 2RbCl + H2O + CO2
Cs2CO3 + HCl -------> 2CsCl + H2O + CO2
What is the formula of a compound whose aqueous solution shows violet flame emmision color and...
If a compound that contains potassium is heated in a flame, what color will be observed?
An aqueous solution contains 0.342 M ammonia. Calculate the pH of the solution after the addition of 5.28*10*2 moles of hydrochloric acid to 255 mL of this solution. (Assume that the volume does not change upon adding hydrochloric acid.) pH
nces to What is the name of the compound with the formula KCN? What is the name of the compound with the formula KHCOs? What is the name of the compound with the formula Ba(OH)2? Use the access im Give the name of the molecular compound and the name of the aqueous solution for each of the binary compounds below FormulaMolecular Name H2S HCN HF Acid Name Are these species strong acids or weak acids in aqueous solution? 6 more...
15. Tests were performed on a mystery solution to identify the components. A flame test resulted in a reddish flame. The solution produced a white solid upon addition of ammonium carbonate, ammonium phosphate, and ammonium sulfate. A halogen test gave a pale yellow-orange color in the hexane layer. Identify the metal and the halogen ions present in the solution. A) Li, Br B) Li, I C) Ca, Br D) Ca, I
13) A 0.0035 M aqueous solution of a particular compound has pOH 11.54. The compound is a) a weak base b) a weak acid c) a strong base a strong acid e) a salt 14) In basic solution, a) [H30'> [OH] b) [H30 ]- [OH1 [Hs0)< [OH] d) (OH]<7.00 e) [OH] =OM 15) The pH of a 0.63 M aqueous solution of hypobromous acid, HBro, at 25°C is 4.17. What is the value of K for HBro? a2.0 x 10...
What is the pOH of an aqueous solution of .243 M hydrochloric acid? What is the pH of an aqueous solution of 2.47x10^-2 M perchlorate acid? What is the pH of an aqueous solution of 4.37x10^-2 M potassium hydroxide?
A.A 9.99 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid. If 12.3 mL of 0.674 M potassium hydroxide are required to neutralize the hydrochloric acid, what is the percent by mass of hydrochloric acid in the mixture? % by mass B. A 8.37 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If 22.9 mL of 0.323 M barium hydroxide are required to neutralize the...
An aqueous solution of hydrochloric acid is standardized by titration with a 0.113 M solution of calcium hydroxide. If 11.3 mL of base are required to neutralize 10.0 mL of the acid, what is the molarity of the hydrochloric acid solution? M hydrochloric acid An aqueous solution of calcium hydroxide is standardized by titration with a 0.101 M solution of hydrochloric acid. If 19.7 mL of base are required to neutralize 22.1 mL of the acid, what is the molarity...
Flame Tests of Metal Cations Experimental Data and Observations Solution LiCi Dominant Flame Color I Red I Congo - Yellow i Vice NaCl KCI uch. Bach Cach Wavelength (mm) 701 597 455 535 609 622 I Green Omne Red - Orange Data Analysis Using the wavelengths recorded above, calculate the corresponding frequencies and photon energies for the emitted radiation observed for each compound tested. Record the results of your calculations in the table below. Solution Wavelength (m) Frequency (s') Photon...
If you have an aqueous solution containing an organic acid salt and a neutral compound, which one will be extracted into ethyl acetate upon mixing in a separatory funnel?