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Suppose 2.08 g of iron(II) bromide is dissolved in 100.mL of a 68.0mM aqueous solution of silver nitrate. Calculate the final molarity of bromide anion in the solution. You can assume the volume of the solution doesn't change when the iron(II) bromide is dissolved in it.Round your answer to 3 significant digits.
A buffer solution is made by making a 100 mL aqueous solution containing 2.6 grams of citric acid (C6H8O7) and 6.4 grams of potassium citrate (C6H7O7K). What is the pH of this buffer solution
Presume you have just added 200.0 ml of a solution containing 0.5000 moles of acetic acid per liter to 100.0 ml of 0.5000 M NaOH. Explain what is the final pH. The Ka of acetic acid is 1.770 ×10-5.
Problem- What concentration of silver nitrate in (ppm) is present in 7.1*10^-7 M AgNO3(aq) ? For very dilute aqueous solutions, you can assume the solution's density is 1.0g/mL The molar mass of AgNO3 ia 169.9g/mol
On the obtained mass-spectra you got in the expected parent-ion mass region two adjacent lines with almost the same abundance (m/z=258 -100%, and m/z=260 -97%). Fragments do not show any adjacent abundant lines. What conclusion can you derive from..
Determine the number of representative particles in each substance.
The rate constant for a reaction increases by a factor of 1.41 when the temperature is increased from 20 °C to 27 °C. What is the activation energy of the reaction
Calculate the energy change when one 235U nucleus undergoes the fission reaction 235U + n -> 142Ba + 92Kr + 2 n . The masses needed are 235U : 235.04 u; 142Ba : 141.92 u; 92Kr : 91.92 u; n : 1.0087 u.
When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule: Would you predict that this reaction is exothermic or endothermic. Explain.
If the same amount of sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide were combined , but the solvent was used to afford a homogenous reaction mixture
Determine the mass in gms for pure Ag sample that loses 2.88kJ if its temperature drops from 143 degree celsius to 28 degree celsius.?
Calculate the molarity of a solution that is 7.00% by mass Magnesium sulfate and has a density of 1.071g/ml
a sample of chlorine gas occupies a volume of 946ml at a pressure of 726mmhg. calculate the pressure of the gas in in
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