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The balanced chemical reaction for the titration performed in this lab demonstration is: NaCOOH(aq)+NaOH(aq)=Na(CH3COO)(aq)+H2O(l). A basic solution has positive ions and OH- ions like Na+ and OH-. Acid solutions have H3O+ and negative ions like CH3COOH + H20 -> H3O+ + CH3COO-. When basic and acid mix, positive and negative ions will bond: Na+ + CH3COO- -> CH3COO-Na+(aq) and the H3O+ and OH- will also bond.
Exactly 25mL of this solution are diluted with deionized water to a new volume of 75mL. The absorbance of this solution is found to be 0.35. How many grams of Kool-Aid were in the opened package?
if i have 0.621 mole of potassium chlorate that decomposes by heat, what is the amount of the oxygen in moles?
The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (C3H8) to burn it completely.
Calculate the cell potential for the following reaction as written at 59 degree celsius, given that [zn2+]=0.765 and [fe2+]=0.0120 M.
A compound is 40.0 , 6.70 , and 53.3 by mass. Assume that we have a 100.- sample of this compound.The molecular formula mass of this compound is 180 . What are the subscripts in the actual molecular formula?
the starting concentration of reactants (Q) and products (R) are both 15 uM, then the equilibrium concentration of Q and R is what in uM?
sucrose solution is allowed to react for 195 minutes then determine the mass of sucrose that is hydrolyzed?
A 15.6 mL sample of vinegar, containing acetic acid, HC2H3O2, was titrated using 0.6216 M NaOH solution. The titration required 19.80 mL of the base. Assuming the density of the vinegar to be 1.0 g/mL, what was the percent (by mass) of acetic acid..
Calculate the molarity of a solution after adding 5mL of tert-butyl chloride to a 100mL volumetric flask and add acetone for a total volume of 100mL.
A coffee cup calorimeter contains 10.0 grams of water at 59.00 degrees C. If 3.00 grams Au at 15.20 degrees C is placed in the calorimeter, what is the final temperature of the water in the calorimeter. The specific heat of water is 4.18 J/g C; th..
The rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 340 K and 350 K. What must the activation energy be for the rate constant to double as described
During a standarization of sodium hydroxide solution, it takes 12.35mL of 0.100 M HCl(aq) to neutralize a 25.00 mL sample of the NaOH(aq) solution. What is the concentration of the NaOH(aq) solution?
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