Question
In: Chemistry
A chemist prepared a solution by dissolving 52.0 g of hydrated sodium carbonate in water to...
A chemist prepared a solution by dissolving 52.0 g of hydrated sodium carbonate in water to a total volume of 5.00 dm3. The concentration was determined to be 0.0366 M. Determine the formula of the hydrated sodium carbonate.
Solutions
Expert Solution
Moleculer weight = (wt/molarity)*(1/Vol in lt)
= (52/0.0366)*(1/1)
= 1420.76
Unhydrated Na2CO3 mol.wt is = 106 gm/mol
Subtract Unhydrated moleculer weight from hydrated moleculer weight
= 1420.76 - 106 = 1314.76
Divide the above value with moleculer weight of water
= 1314.76/18.015 = 72.98
so no.of H2O molecules are 73
the formula is Na2CO3 73*H2O
queen_honey_blossom answered 3 months agoRelated Solutions
A solution is prepared by dissolving 11.6 g of a mixture of sodium carbonate and sodium...
A solution is prepared by dissolving 11.6 g of a mixture of
sodium carbonate and sodium bicarbonate in 1.00 L of water. A 300.0
cm3sample of the solution is then treated with excess HNO3 and
boiled to remove all the dissolved gas. A total of 0.940 L of dry
CO2 is collected at 298 K and 0.972 atm.
1. Find the molarity of the carbonate in the solution.
2. Find the molarity of the bicarbonate in the solution.
calculate the concentration of a solution prepared by dissolving 35.0 g of aluminum carbonate in enough...
calculate the concentration of a solution prepared by
dissolving 35.0 g of aluminum carbonate in enough water to prepare
500.0 mL of solution
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The...
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of
water. The density of the resulting solution is The mole fraction
of Cl- in this solution is __________ M.
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The...
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of
water. The density of the resulting solution is 1.05 g/mL. The
concentration of CaCl2 in this solution is M
A solution is made by dissolving 10.0 g of sodium chloride in 110.5 g of water...
A solution is made by dissolving 10.0 g of sodium chloride in
110.5 g of water at 25oC. The density of the solution is 1.021
g/mL
1.What is the osmotic pressure of this solution?
2.What is the boiling point of this solution?
3.What is the freezing point of this solution?
A solution is prepared by dissolving 29.2 g of glucose (C6H12O6) in 355 g of water....
A solution is prepared by dissolving 29.2 g of glucose (C6H12O6)
in 355 g of water. The final volume of the solution is 378 mL . For
this solution, calculate each of the following.
molarity
molality
percent by mass
mole fraction
mole percent
A solution was prepared by dissolving 26.0 g of KCl in 225 g of water. Part...
A solution was prepared by dissolving 26.0 g of KCl in 225 g of
water.
Part A:
Calculate the mole fraction of KCl in the solution.
Part B:
Calculate the molarity of KCl in the solution if the total
volume of the solution is 239 mL.
Part C:
Calculate the molality of KCl in the solution.
A solution of sucrose is prepared by dissolving 0.5 g in 100 g of water. Calculate:...
A solution of sucrose is prepared by dissolving 0.5 g
in 100 g of water. Calculate: a. Percent weight in weight b. The
molal concentration of sucrose and water c. The mole fraction of
sucrose and water in the solution
A solution was prepared by dissolving 31.0 g of KCl in 225 g of water. Part...
A solution was prepared by dissolving 31.0 g of KCl in 225 g of
water.
Part A: Calculate the mass percent of KCl in the solution.
Part B: Calculate the mole fraction of the ionic species KCl in
the solution.
Part C: Calculate the molarity of KCl in the solution if the
total volume of the solution is 239 mL.
Part D: Calculate the molality of KCl in the solution.
A solution was prepared by dissolving 39.0 g of KCl in 225 g of water. Part...
A solution was prepared by dissolving 39.0 g of KCl in 225 g of
water.
Part A:
Calculate the mole fraction of the ionic species KCl in the
solution.
Express the concentration numerically as a mole fraction in
decimal form.
Note: The answer is not 0.0419..
Part B:
Calculate the molarity of KCl in the solution if the total
volume of the solution is 239 mL.
Express your answer with the appropriate units.
Part C:
Calculate the molality of KCl...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Large lots are desirable in supply chain coordination despite increasing holding costs.
- ***Convert the C++ to Python*** #include <iostream> using std::cout; using std::cin; using std::endl; int charClass; char...
- Make-or-Buy Decision Fremont Computer Company has been purchasing carrying cases for its portable computers at a...
- The following costs were incurred for the single product produced during the first year of operations...
- Non-constant growth model: Do=$2.00 required return on equity= 5% g= 9% n=1,2 g=7% n=3,4 g=3% n=5...
- . Find all x ∈ Z143 such that x2Ξ 7 (mod 143). Please explain all steps...
- #Python: A palindrome is a sequence of characters that reads the same backwards as forwards. For...
ADVERTISEMENT