One drop 0.2 M Na2C2O4 is added to 0.5 mL of 0.04 M CuSO4 solution. What is the identity of the substance that causes cl...
One drop 0.2 M Na2C2O4 is added to 0.5 mL of 0.04 M CuSO4 solution. What is the identity of the substance that causes cloudiness in this reaction?
Enter the chemical formula.
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One drop 0.2 M Na2C2O4 is added to 0.5 mL of 0.04 M CuSO4 solution. What is the identity of the substance that causes cl...
One drop 6 M NaOH is added to 0.5 mL of 0.04 M CuSO4 solution. What...
One drop 6 M NaOH is added to 0.5 mL of 0.04 M CuSO4 solution. What is the identity of the substance that causes cloudiness in this reaction? Enter the chemical formula.
One drop of 2.5 M KSCN solution is added to 0.5 mL of 0.10 M Fe(NO3)3. After the solution is mixed, 1.0 mL of 0.125 M ED...
One drop of 2.5 M KSCN solution is added to 0.5 mL of 0.10 M Fe(NO3)3. After the solution is mixed, 1.0 mL of 0.125 M EDTA solution is added. Enter the chemical formula of the major iron complex in solution after the addition of EDTA
0.5 mL of a 0.04 M CoCl2 solution is combined with 1.5 mL deionized water. What...
0.5 mL of a 0.04 M CoCl2 solution is combined with 1.5 mL deionized water. What is the molarity of the solution?
A 14.2 ml solution of 0.036 M CaCl2 is mixed with10.1 ml of 0.04 M...
A 14.2 ml solution of 0.036 M CaCl2 is mixed with 10.1 ml of 0.04 M BaCl2. Aqueous KF is added. Calculate the fluoride ion concentration (in M) that will separate the metal ions. Enter a number to 4 decimal places.Ksp for CaF2 = 3.2x10−11 Ksp for BaF2 = 1.5x10−6
Starting with a 25.0 mL 5.0 M CuSO4 solution, show how you would prepare 25.0 mL...
Starting with a 25.0 mL 5.0 M CuSO4 solution, show how you would prepare 25.0 mL of each of the following solutions: 2.5 M, 1.0 M, 0.5 M CuSO4. Assuming you have only one 25.0 mL flask to prepare three solutions, should you prepare the most concentrated or dilute solution first? Explain. Does the volumetric flask have to be dry before you use it to prepare the next solution? Explain. When using a pipet that has the marking TD on...
Circle the correct answers to the following sentences: a) A solution of 0.5 mL 0.04 M...
Circle the correct answers to the following sentences:
a) A solution of 0.5 mL 0.04 M CoCl2 and 1.5 mL of
2.5 M KSCN contains (tetrahedral OR
octahedral OR both
tetrahedral and
octahedral) complexes.
b) The Co(SCN)42- complex is
(red OR blue OR
purple) in color and has a
max (maximum wavelength) closest to
(500 OR 600 OR
700) nm.
c) The d-orbital energy splitting of
Co(SCN)42- is (larger
than OR smaller than OR
equal to) that of
Co(H2O)62+
As 50.0 mL of 0.10 M NaOH is added to 100.0 mL of 0.5 M NaOH,...
As 50.0 mL of 0.10 M NaOH is added to 100.0 mL of 0.5 M NaOH, what happens to the pH of the original solution? does it increase or decrease
6. How many mL of 0.2 M sodium acetate should be added to 200 mL of...
6. How many mL of 0.2 M sodium acetate should be added to 200 mL of 0.2 M acetic acid to make a buffer of pH 5.5? (refer to Table 2-2 on page 60 for pKa values). What is the molarity of the resulting buffer with respect to acetate (acetate + acetic acid)? 7. How many mL of 0.2 M HCl should be added to 50 mL of 0.2 M Tris base (Trishydroxymethyl aminomethane) to make a buffer of pH...
What is the identity of the precipitate that forms when 55 mL of 0.3 M BaCl2...
What is the identity of the precipitate that forms when 55 mL of 0.3 M BaCl2 reacts with 50 mL of 0.35 M Na2CO3? Express your answer as a chemical formula.
1) 0.5 ml of 1 M NaOH was added to 0.5L of a 100mM buffer solution...
1) 0.5 ml of 1 M NaOH was added to 0.5L of a 100mM buffer solution at pH=7.0. Calculate how the pH value is affected by this addition if a pKa value of the buffer is 7.47. b) 1ml of 0.01mM HCl is added to 10L of pure water. What is a pH of this solution?
Circle the correct answers to the following sentences:
a) A solution of 0.5 mL 0.04 M CoCl2 and 1.5 mL of
2.5 M KSCN contains (tetrahedral OR
octahedral OR both
tetrahedral and
octahedral) complexes.
b) The Co(SCN)42- complex is
(red OR blue OR
purple) in color and has a
max (maximum wavelength) closest to
(500 OR 600 OR
700) nm.
c) The d-orbital energy splitting of
Co(SCN)42- is (larger
than OR smaller than OR
equal to) that of
Co(H2O)62+
6. How many mL of 0.2 M sodium acetate should be added to 200 mL of 0.2 M acetic acid to make a buffer of pH 5.5? (refer to Table 2-2 on page 60 for pKa values). What is the molarity of the resulting buffer with respect to acetate (acetate + acetic acid)? 7. How many mL of 0.2 M HCl should be added to 50 mL of 0.2 M Tris base (Trishydroxymethyl aminomethane) to make a buffer of pH...
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