Calculate the mass, in grams, of solute present in each of the
following solutions? a) 375 g of 1.51% ammonium chloride solution
b) 125 g of 2.91% sodium chloride solution c)1.31 kg of 4.92%
potassium nitrate solution d) 478 mg of 12.5% ammonium nitrate
solution
Calculate the heat/mole KCl when KCl is dissolved in water if
3.00 grams of KCl changes the temperature of 301 mL of water from
23oC to 29oC. (swater = 4.184
J/goC)
Molarity is the concentration of chemical solutions. It
is the number of moles of solute dissolved in a liter of solution.
It is denoted by M, and the unit is moles per liter, which
can be written as molL.
molarity of a solution= moles of soluteliters of solution
Molality of a solution is the amount of solute divided
by the mass of the solvent (not the mass of the solution). It is
also defined as the number of moles of...
5. What is the mass of solute in each of the following
solutions?
A.) 2.95 L of 0.200 M FeCl3
B.) 2.95 L of 0.200 M KIO4
C.)60.0 mL of 0.335 M ZnSO4
D.)60.0 mL of 0.335 M Ni(NO3)2
4. What volume of each of the following solutions contains the
indicated amount of dissolved solute?
C. ) 50.0 g solute in 0.441 M K2CO3
D.) 50.0 g solute in 0.441 M Fe(ClO3) 3
5. What is the mass of solute in each of the following
solutions?
A.) 2.95 L of 0.200 M FeCl3
B.) 2.95 L of 0.200 M KIO4
C.)60.0 mL of 0.335 M ZnSO4
D.)60.0 mL of 0.335 M Ni(NO3)2
4. What volume of each of the following solutions contains the
indicated amount of dissolved solute?
C. ) 50.0 g solute in 0.441 M K2CO3
D.) 50.0 g solute in 0.441 M Fe(ClO3) 3
Prepare the following solutions by determiing the proper mass of
solute (or volume in the case where you are working from a stock
solution) that will need to be transferred to the volumetric flask.
Use diemensional analysis where apporpriate to do so. Describe how
you would make each solution.
a. 150.0 mL of .50 M hydrochorlic acid solution from a
concetrated stock solution of 12.0M hydrochloric acid.
b. 250.0 mL of a 1.50 M solution of potassium permanganate.
c. 2.00...
Calculate the mass percent of a NaCl solution in which 141 g of
NaCl is dissolved in 4.00 L of water at 25 ∘C (density = 0.997
g/mL).
Express your answer numerically.
Calculate the number of moles of solute present in each of the
following aqueous solutions. 600 mL of 0.250 M SrBr2 122.0 g of a
solution that is 6.65% glucose (C6H12O6) by mass.