Calculate

What volume of 0.100 M NAOH is required to precipitate all of the nickel (II) ions from 150.0 mL of a 0.195 M solution of Ni(NO3)2? L

[A] What volume of 0.750 M hydrochloric acid solution can be prepared from the HCl produced by the reaction of 25.0 g of NaCl with excess sulfuric acid?NaCl(s)+H2SO4(l)⟶HCl(g)+NaHSO4(s)

It takes 50.0 ml of 0.0500 M Na2S2O3 solution to completely react with the iodine present in a 125.0 ml iodine solution. How many grams of iodine (I2) were initially present in the sample? What is the final concentration (in mol/L) of I– ions in solution at the end?

31.29 mL of a 0.294 M solution of K2CrO4 is mixed with excess AgNO3. What mass (g) of Ag2CrO4 (MM = 331.732 g/mol) is produced?

How many grams of Ag₂CO3 will precipitate when excess (NH4)2CO3 solution is added to 74.0 mL of 0.543 M AgNO3 solution? 2AgNO3(aq) + (NH4)₂CO3(aq) Ag₂CO3(s) + 2NH4NO3(aq) g

Chilean niter deposits are mostly sodium nitrate, but they also contain 0.3%iodine in the form of calcium iodate, Ca(IO3)2. After the sodium nitrate inthe niter is dissolved and recrystallized, the remaining solution contains 9 g/Lsodium iodate, NaIO3(aq). The NaIO3 is converted to iodine when it reactswith sulfur dioxide and water.2NaIO3 + 5SO2 + 4H2O → Na2SO4 + 4H2SO4 + I2a. How many liters of sodium iodate solution that contains 9 g of NaIO3 perliter would be necessary to form 127.23 kg of iodine, I2?b. What mass, in megagrams, of Chilean niter that is 0.3% I would benecessary to form the volume of sodium iodate solution you calculated inpart (a)

It is desired to prepare 600 mL of 0.250 normal Ba(OH)2 for use in the reaction:2 HCl + Ba(OH)2  BaCl2 + 2 H2OHow many grams of Ba(OH)2 are needed?

Calcium sulfate  (MM= 136.1406) dissolves in cold water to the extent of 0.241 g per 100. mL. What is the concentration  (mol/L) of calcium ions in this solution? Hint: CaSO4-> Ca+2+ SO4-2

A student determined the concentration of NaOCI in a commercial bleach sample using the same technique described in section "F" of the Halogens and Their Compounds lab. The student required 18 drops of 0.01M Na,S203 to reach the end point. What is the concentration (reported in molarity) of NaOCI in the bleach sample?