Corals that form in modern oceans precipitate the mineral
aragonite as their skeletal material. Is their...
Corals that form in modern oceans precipitate the mineral
aragonite as their skeletal material. Is their aragonite skeleton
in thermodynamic equilibrium with their surroundings? Explain your
answer.
Will a precipitate form when 50.0 mg of sodium chloride
is added to 250.0 mL of a 0.100 M solution of silver nitrate? If
so, how many grams of precipitate form?
Clearly show all your calculations.
Will a precipitate form when 50.0 mg of sodium chloride
is added to 250.0 mL of a 0.100 M solution of silver nitrate? If
so, how many grams of precipitate form?
Clearly show all your calculations.
Show with calculations whether a precipitate will form if: (a)
30.0 ml of 0.0024 M AgNO3 is mixed with 70.0 ml of
0.0036 M NaCl. (b) a solution that is 0.30 M with respect to HCl
and 0.01 M with respect to Fe2+ is saturated with
H2S (i.e. 0.10 M H2S). For FeS, Ksp =
3.7x10-19. Ksp for AgCl = 1.7x10-10.
Iron sulfate reacts with strong bases in aqueous solutuon to
form a whitish precipitate that acquires a green color on exposure
to air. This compound is a component of the "green rust" sometimes
observed on iron and steel surfaces.
a) Write balanced molecular and net ionic equations for the
reactions of iron sulfate with aqueous NaOH. What is the identity
of the "green rust" precipitate?
b) What mass of the "green rust" precipitate forms when 175 mL
of 0.277 M...
Alkalinity Concepts Assuming no solids form or precipitate, does
the alkalinity of a 1 liter sample of a typical natural water
increase, decrease, or stay the same if you:
a.). Add a small amount of CaCl2(s) to it?
b.). Add 10 mL of 0.1 M NaOH and 10 mL of 0.1 M H2SO4 (sulfuric
acid) to it?
c.) Titrate it with acid to the H2CO3 endpoint (pH = 4.3)?
d.) Degas the solution to remove dissolved CO2(g) before
starting the...
To verify the existence of silver in your solution, one should
first form a white precipitate by addition of NaCl. Next, the
precipitate should dissolve in aqueous ammonia. Silver can
re-precipitate by addition of 6M HNO3. Using chemical
equations, describe the identity of the product formed in each
step. (3pts) (Your three steps should be after addition of NaCl,
after addition of ammonia and after addition of
HNO3.)
A company needs a modern material handling system for
facilitating access to and from a busy warehouse. If the company’s
management use a MARR (given in the below table for each group) in
their economic decisions.The company found two systems, the first
system is a second-hand and the second system is a new system. The
economic consequences of both systems are given in the below table
for each group. PART 2: Considering the two mutually exclusive
alternatives and assume permanent...