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If the copper is drawn into wire whose diameter is 7.50 , how many feet of copper can be obtained from the ingot? The density of copper is 8.94
Problem- The Ka of a monoprotic weak acid is 7.21 × 10-3. 1) What is the percent ionization of a 0.114 M solution of this acid
Calculate the molar concentration of uncomplexed Zn2+ in a solution that contains 0.20 mole of Zn(NH3)42+ per liter and 0.0116 M NH3 at equilibrium.
What is the PH of a 0.085M solution of ammoniun chloride. Kb for ammonia is 1.8 times, Calculate the pH fo a solution made by mixing 125ml of .200M HCl and 500 ml fo 0.0500M KOH
What must be the reaction temperature if a rate of 1.000 x 10^-9 M/s is required and [C] must be kept at 0.03000M. What must be the value of k to achieve the necessary rate?
Perform the calculatons for the extraciton of 100 mg of P in 300mL of water with three 100-mL portions of ether. assume the partition coefficient is 3.5
A buffer solution is prepared by adding 32.8 grams of sodium acetate, NaC2H3O2 to 1.00 L of 0.500 M acetic acid, CH3CO2H. Ka = 1.8 x 10-5 for acetic acid.
P4(s) + 6F2(g) --> 4PF3(g) How many grams of fluorine are needed to react with 6.20g of phosphorus?
question if 1.4 m h2so4 is used to titrate a 300.0 ml solution of 1.76 m ammonia nh3 what volume of acid is required to
Each of the following complex ions is either tetrahedral or square planar. On the basis of the number of unpaired electrons (given in parentheses) decide which is the correct geometry.
Question- A box of Borax laundry booster claims to be more than 98% pure. If a sample of borax with a mass of 2.272g was neutralized by 26.28 mL of 0.444 M HCl in a titration, is the borax as pure as the manufacturer claims?
A titration experiment is set up to use 0.235M bleach (NaOCl) to analyze CrO2-. If 50.0mL of the CrO2-(aq) solution required 37.75mL of bleach to react to completion, what would you calculate as the molarity of the CrO2- solution
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