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Question - A 200 mL volume of 1.28 M Ba(NO3)2 is diluted with water to a volume of 2.00 L, calculate the molarity (M) of NO3- in the new solution. Molar Mass (g/mol) Ba(NO3)2 261.34 NO3- 62.004 Ba2+ 137.33
Elucidate the each and every step in detail for helping me to understand the answer of the above problem
A meteorological ballon contains 250.0L He at 22 degrees celsius and 740.0mm Hg. If the volume of the ballon can vary according to external conditions
Express the concentration of a 0.0260 M aqueous solutioin of fluorire, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
Bromine is a reddish-brown liquid. Calculate its den-sity (in g/mL) if 650 g of the substance occupies 188mL.
calculate the theoretical yield of ethanol based on a 360 ml of a 22 by weight solution of sucrose density1.09
What is the mole fraction of ethanol in a solution made from mixing 299 grams of ethanol (C2H5OH) and 360 grams of water? (Round your answer to 2 places after the decimal.)
Problem- A student prepares a solution by mixing 20mL of 0.1M acetic acid and 20mL of 0.1M sodium chloride. What happens to the pH of the solution if
Water autoionizes to produce hydronium ion and hydroxide ion. The product of the concentrations of these ions equals the water autoionization constant, Kw.
Question- When Fe(OH)2 to create a saturated solution, the concentration of OH- is 2.50*10^-5M. What is the value of Ksp for Fe(OH)2?
Calculate the pH of an HCl solution if 16.5 mL of this HCl solution is titrated with a 0.454 M NaOH and it took 5.65 mL of the NaOH to reach the equivalnce point.
Potassium metal reacts violently when added to water according to the balanced equation: 2K(s) + 2 H2O (I) > 2KOH(aq) + H2(g). How many moles of H2O are needed to react completely with 7.54 mol of K
140 mL of a .175 M aqueous solution of NH3 is titrated with a .106 M solution of HCl. (NH4+ Ka=5.56x10^-10)
what is the energy in joules of a mole of photons with visible light of wavelength 486nm.
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