0
An impure sample of table salt that weighed 0.8421 g when dissolved in water and treated with excess AgNO3 formed 2.044 g of Ag-Cl what is the percentage of Na-Cl in the impure sample?
Wiki User
∙ 14y ago
2.044 g AgCl / 143.33 g per mole = 0.01426 moles of AgCl
NaCl + AgNO3 --> AgCl + NaNO3
1 mole of AgCl = 1 mole of NaCl
The sample contained 0.01426 moles of NaCl
0.01426 moles NaCl x 58.44 g per mole = 0.8334 g NaCl
0.8334 / 0.8421 = 98.97% pure
I'm pretty sure this is the correct answer.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the percentage of Ba compound when 0.269 g sample of Ba compound was treated with excess H2SO4 0.0891 g of BaSo4 was formed?
32%
When a .269 g sample of barium compound was treated with excess H2SO4 .0891 g of BaSO4 formed What is the percentage of barium in the compound?
32%
What is called the reappearance of excess dissolved substance from the solution on cooling?
Crystallysation,solution,filtrate,solvent
A 0.5895g sample of impure magnesium hydroxide is dissolved in 100.0ml of a 0.2050M HCl solution the excess acid then needs 19.85ml of 0.1020M NaOH for neutralization calculate the percentage by mas?
To calculate it must be certain that the impurities do NOT react either with HCl or NaOH; hence they shouldn't be acidic or base compounds.
How is the concentration of hydroxyl ions affected when excess base is dissolved in a solution sodium hydroxide?
The concentration oh hydroxyl ions (OH)- is increased.
A sample of 0.3220 g of an ionic compound containing the bromide ion Br is dissolved in water and treated with an excess of AgNO3 If the mass of the AgBr precipitate that forms is 0.6964 g?
A sample of 0.3220 g of an ionic compound containing the bromide ion Br is dissolved in water and treated with an excess of AgNO3 If the mass of the AgBr precipitate that forms is 0.6964 g then bromide=0.3220g and AgBr precipitate=0.6964.
What is the percentage of Ba compound when 0.269 g sample of Ba compound was treated with excess H2SO4 0.0891 g of BaSo4 was formed?
32%
When a .269 g sample of barium compound was treated with excess H2SO4 .0891 g of BaSO4 formed What is the percentage of barium in the compound?
32%
Excess consumption of soft drinks may lead to excess stomach acid how is this problem normally treated?
excess consumption of soft drinks may lead to excess stomach acid.Why? and how is this treated
If a substance dissociates and forms an excess of h positive ions when dissolved in watr it is referred to as?
acid
What is called the reappearance of excess dissolved substance from the solution on cooling?
Crystallysation,solution,filtrate,solvent
Chemical rock formed by crystallization of excess dissolved minerals?
A chemical sedimentary rock, such as rock salt or rock gypsum.
A 0.5895g sample of impure magnesium hydroxide is dissolved in 100.0ml of a 0.2050M HCl solution the excess acid then needs 19.85ml of 0.1020M NaOH for neutralization calculate the percentage by mas?
To calculate it must be certain that the impurities do NOT react either with HCl or NaOH; hence they shouldn't be acidic or base compounds.
What percentage of the contribution margin is profit on units sold in excess of the breakeven point?
50%
What is a chemical rock formed by crystilization of excess dissolved materials?
This is known as an evaporite, examples include Halite, Gypsum and certain types of Limestone.
How is the concentration of hydroxyl ions affected when excess base is dissolved in a solution sodium hydroxide?
The concentration oh hydroxyl ions (OH)- is increased.
What positive ions is produced in excess when acids are dissolved in water?
Hydronium(H3O+) ions, which are formed when Hydrogen(H+) ions combine with water molecules.
