Explain a saturated solution of calcium iodate

Assignment Help Chemistry

Reference no: EM13159776

A saturated solution of calcium iodate, Ca(IO3)2, is created by suspending a small amount of pure solid of Ca(IO3)2 in 50.0 mL of distilled water. After allowing equilibrium to be established, a 10.0-mL sample of the saturated solution is pipeted into an Erlenmeyer flask, and about 20 mL of de-ionized water is added to this sample, followed by about 1 cm3 of solid KI and 1 mL of 2.0 M HCl. The addition of excess KI and HCl converts all of the IO3- present in the sample to molecular iodine according to the following equation. IO3-(aq) + 5 I-(aq) + 6H+(aq) ? 3 I2(aq) + 3H2O(l) (Eqn-1) The iodine produced by the above reaction is then titrated with 0.0250 M Na2S2O3 using starch indicator, which requires 29.0 mL of 0.0250 M Na2S2O3 to reach end-point. The stoichiometric reaction between iodine and thiosulfate is represented by the following net ionic equation. I2(aq) + 2 S2O32-(aq) ? 2 I-(aq) + S4O62-(aq) (Eqn-2) Using Eqn-1 and Eqn-2, write a balanced net ionic equation that shows the stoichiometric relationship between iodate, IO3- and the thiosulfate, S2O32-, in acidic solution. (b) Use the equation derived from (a) and the data gi

Reference no: EM13159776

Questions Cloud

Analyzing the changes in each of the plant asset : Prepare a schedule analyzing the changes in each of the plant asset accounts during 2011. this schedule should include columns for beginning balance, increase, decrease and ending balance for each of the plant asset accounts.

Type of eclipse : Describe how the Sun looks during each type of eclipse and where is the Moon in relation to the Earth and the Sun during any solar eclipse?

Explain what each of the estimated coefficients : Explain what each of the estimated coefficients means that is interpret the results. Explain. Are each of the estimated coefficients statistically significant at the 5% level of significance? Explain Completely.

Update depreciation on assets disposed of at time of sale : The equipment is estimated to have a 10-year useful life and no salvage value. Update depreciation on assets disposed of at the time of sale or retirement.

Explain a saturated solution of calcium iodate : A saturated solution of calcium iodate, Ca(IO3)2, is created by suspending a small amount of pure solid of Ca(IO3)2 in 50.0 mL of distilled water.

How much heat is released : B2H6 + 3O2= B2O3+3H2O ;DELTA H=-2035KJ how much heat is released when a mixture of 7.35 g B2H6 and 2.60 g O2 is burned?

Marketing budget with the primary goal of attracting : You have just been appointed marketing director at an art museum. Describe how you would develop a marketing budget with the primary goal of attracting more elderly people to the museum.

Monthly loan payment deduction : Monthly loan payment deducted directly by the bank from the account (includes $320 in interest) (3320)

How come the stomach does not digest itself : why does the reflux of bile salts into the stomach leads tostomach ulcers?

User Account

All Pages