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Write net ionic equations for the reactions that take place when aqueous solutions of the following substances are mixed.
Potassium fluoride and bromic acidAmmonium chloride and sodium hydroxideSodium cyanide and ammonium bromideSodium hydrogen sulfite and potassium cyanideSodium hypochlorite and ammonia
Find the weight percent copper in the salt. Would you help me to sort out this question? A 3.026 gram portion of Cu(II) salt was dissolved in a 250 ml volumetric flask. A 25.0mL
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.508g/L at 25C and 721mmHg?
Converting Grams and Moles, To do this assignment, use your calculator to do the calculations required. Then invert the calculator to read the message word. Insert the message word into the appropriate space in the statement
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
An unknown amount of water is mixed with 370mL of a 6M solution of NaOH solution. A 75mL sample of the resulting solution is titrated to neutrality with 50.7mL of 6M HCl.
Detremine the concentration of chromate solution - Potassium chromate has an absorbance value
The freezing point depression constant, Kf, for water is 1.86?C/m. Suppose that 5.00 g of mercury(I) nitrate was dissolved in 100.0 g of water.
514 mL of sulfuric acid is exactly neutralized with 453 mL 0.180 M lithium hydroxide solution. What is the concentration of the acid solution?
The compound has a molecular mass of 70. D) The compound contains a cyano or alkyne group. E) The compound contains a CO group
a sample of argon gas is at a pressure of 1.24x10^4 kpa and a temperature of 24c in a rigid 25-L tank. How many moles of argon does this tank contain?
The EPA limit for lead in the water supply is 15 parts per billion by mass. Calculate the number of lead ions present in 1.00kg of water that is at the EPA limit for lead.
A .117 gram sample of a metal reacts with hydrpchloric acid to produce 36.3mL od dry hydrogen gas. what is the equivalent weight of this metal.
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