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35.0mL of 0.255 M nitric acid is added to 45.0mL of 0.328 MMg (NO3)2. Explain what is the concentration of nitrate ion in the final solution?
A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 38.50 mL of 0.08765 M AgNO3(aq) to preipitate the Cl- (aq)and Br-(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in ..
Do you experimental data substantiate the rule of thumb regarding the effect on the reaction rate of a 10-degree increase in reaction temperature. Briefly explain
Describe the expected results of the following tests or reagents on the sphingolipid N-palmitoyl-D-sphingomyelin
Why does EDTA^4- cease to function as chelating ligand if acid is added to the solution
What are the concentrations of HSO4-, SO42-, and H+ in a 0.255 M KHSO4 solution? (Hint: H2SO4 is a strong acid; Ka for HSO4- = 1.3 10-2.)
To determine the organic material in a dried lake bed, you have determined the percent carbon by mass at two different locations. In order to compare the means of the two different locations, you need to determine whether the standard deviations o..
The vapor pressure of water at 20.0 °C is 17.5 mm Hg. If the pressure of a gas collected over water was measured to be 453.0 mm Hg. What is the pressure of the pure gas
salicylic acid reacts with methanol to produce oil of wintergreen and water. If water is added to the solution, a precipitate is formed. identify the precipitate and explain why it is formed.
Given that an atom of a semiconductor has a diameter of 3.33 , what is the maximum number of moles that fit in the channel of a processor chip that is 76.5 long, 74.1 , wide and 545 thick. Assume that the atoms stack in a simple cubic arrangement...
A solution is made my mixing equal masses of methanol, CH4O and ethanol, C2H6O. Determine the mole fraction of each component to at least three significant figures.
Calculate [H3O ], [ClO4-], and [OH-] in an aqueous solution that is 0.110 M in HClO4(aq) at 25 °C. is the solution acidic, basic, or neutral
What would you need to use to prepare 300 ml of 0.500M K2Cr2O7 adding 30 ml of 1.50m K2Cr2O7 to 270 ml of H2O or dilute 250 ml of 0.600 m K2Cr2O7 to a volume of 300 ml please help explain which
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