Which of the following gives the molarity of a 17.0 % by mass
solution of sodium...
Which of the following gives the molarity of a 17.0 % by mass
solution of sodium acetate, CH3COONa (molar mass = 82.0 g/mol) in
water? The density of the solution is 1.09 g/mL.
What is the molarity of a solution made by adding 18.00 mL of
5.00 M sodium acetate to 55.00 mL of water? I got 1.64 as the
molarity but when i enter that answer it says it is wrong, so i
must be doing something wrong. Can you help?
What is the molarity of ethanol (C2H5OH) in a solution of
ethanol in water in which the mole fraction of C2H5OH is 0.144? The
density of the solution is 0.9566 g/mL.
An unknown mass of sodium hydroxide is dissolved in 500 g of
water. This solution is neutralized by adding successively 18 g of
CH3COOH, 25.2 g HNO3, and 29.4 g of H2SO4. Determine
a) the mass of NaOH
b) the mass of H2O in the neutral solution.
Which of the following gives a buffer solution when equal
volumes of the two solutions are mixed?
(a) 0.10 MHF and 0.10 MNaOH
(b) 0.20 MHF and 0.10 MNaOH
(c) 0.10 MHCl and 0.20 MNaF
(d) 0.10 MHF and 0.10 MNaF
A. What is the molarity of sodium ions in a solution prepared by mixing 202.1 ml of 0.63 M sodium phosphate with 239 ml of 1.31 M sodium sulfide. Enter to 2 decimal places.B. A 17.3 ml sample of a 1.49 M potassium chloride solution is mixed with 58.6 ml of a 1.34 M lead(II) nitrate solution and a precipitate forms. The solid is collected, dried, and found to have a mass of 0.5 g. What is the percent yield?...
Calculate the molarity M (moles of solute/liter of solution) of
each of the following queous solution. The units of molarity are M,
so that is the appropriate unit to use. (i.e. M=mol/L)
a. 3.75mol CaCl2 in 1.25L of solution
b. 0.001750 mol Li2Co3 in 25.0mL solution
c. 23.25ml glycerol C3H8O3 (d=1.265g/mL) in 250.0mL of
solution
d. 55.0ml 2-propanol, CH3CHOHCH3 (d=0.786g/ml) in 250ml of
solution
e. How many grams of C6H12O6 are there in 10.0ml of 4.25M
C6H12O6 solution?
f. How...
8. a. What is the molarity of a solution of calcium chloride
which contains 33500 mg of solute in a total volume of 0.352L?
b. What is the molarity of a solution of LiI which contains
26800 mg of solute in a total volume of 0.282L?
c. What is the molarity of a solution of calcium chloride which
contains 0.440moles of solute in a total volume of 0.872L?
9. a. How many mL of solvent should be added to 0.99L...