Question: A 50-g sample of impure KClO3 (solubility = 7.1 g per 100 g H2O at 20C) is contaminated with 10 percent of KCl (solubility =

A 50-g sample of impure KClO3 (solubility = 7.1 g per 100 g H2O at 20°C) is contaminated with 10 percent of KCl (solubility = 25.5 g per 100 g of H2O at 20°C). Calculate the minimum quantity of 20°C water needed to dissolve all the KCl from the sample. How much KClO3 will be left after this treatment? (Assume that the solubilities are unaffected by the presence of the other compound.)

Step by Step Solution

★★★★★

3.19 Rating (166 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The mass of KCl is 10 of the mass of the whole sample or 5... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

932-C-O-C (2422).docx

120 KBs Word File

Students Have Also Explored These Related Organic Chemistry Questions!

This question considers pruning in games with chance nodes. Figure 5.19 shows the complete game tree for a trivial game. Assume that the leaf nodes are to be evaluated in left-to-right order, and...

An iron ore sample contains Fe 2 O 3 plus other impurities. A 752- g sample of impure iron ore is heated with excess carbon, producing 453 g of pure iron by the following reaction: Fe 2 O 3 (s) +...

At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8765-g sample of impure sodium chlorate was heated until the production of oxygen gas ceased. The...

A 0.5895-g sample of impure magnesium hydroxide is dissolved in 100.0 mL of 0.2050 M HCl solution. The excess acid then needs 19.85 mL of 0.1020 M NaOH for neutralization. Calculate the percent by...

Be sure to answer all parts. A 67-g sample of impure KClO3 (solubility = 7.1g per 100gH2O at 20C ) is contaminated with 19 percent of KCl (solubility =25.5g per 100g of H2O at 20C ). (a) Calculate...

:) Be sure to answer all parts. A 45-g sample of impure KClO3 (solubility =7.1g per 100gHH2Ot20C ) is contaminated with 11 percent of KCl (solubility =25.5g per 100g of H2O at 20C ). (a) Calculate...

The solubility of a salt in water depends on a broad range of intermolecular bonding forces. These occur between the particles or ions making up the salt, between the salts particles and solvating...

1 Hint 20 points 1 attempts left Check my work Be sure to answer all parts. Ethylene glycol (CH (OH)CH (OH)) is a common automobile antifreeze. Calculate the freezing point and boiling point of a...

Be sure your stirring rod is washed and dried. Stir well. This is your starting citric acid solution. You will need to calculate the molarity of this citric acid solution and use that to standardize...

A 19.51 g sample of impure methylamine, which contains 72.58% (by mass) of CH;NH2 , is reacted with 30.81 g of pure oxygen gas: 4CH3NH2 (g) + 902(g) 4C02(g) + 10H20(f) + 2N2(g) 1 What is the...

An iron ore sample contains Fe 2 O 3 plus other impurities. A 747-g sample of impure iron ore is heated with excess carbon, producing 456 g of pure iron by the following reaction. Fe 2 O 3 ( s ) + 3...

Walmax, Inc., is one of the leading chain of grocery in the country. On January 1, 2020, the company began to offer its customers a free cookie sheet in exchange for 100 coupons. Customers earned 1...

An automobile dealer has an inventory of 328 used cars. The mean mileage of these vehicles is to be estimated. Previous experience suggests that the population standard deviation is likely to be...

An unrealized foreign exchange loss on a foreign currency account receivable that results from a depreciation in the foreign currency from the date of sale to the balance sheet date is Multiple...

Why do we need philosophy today? How do we use epistemology to teach machines? How are logical fallacies used in marketing?

5. A production line produces 6% defectives. For a random sample of 10 components, determine the probability of obtaining: a. No defective b. 2 defectives C. More than three defectives (6)

2. A packet contains 100 washers, 24 of which are brass, 36 copper and the remainder steel. One washer is taken at random without replacement, and a second washer similarly drawn. Determine the...

Round off all answers to three decimal places 1. Fourteen percent of a type of plastic bushes are rejects. Determine: a. The probability that any one item drawn at random is (i) Defective Acceptable...

5. Considering your organization's strategic goals and your project, write the success criteria for your project. How will you know your project is a success? When will you know this? What business...

There are eight diastereomers of 1, 2, 3, 4, 5, 6-hexachlorocyclohexane. Draw each in its more stable chair conformation. One isomer loses HCI in an E2 reaction nearly 1000 times more slowly than the...

Methyl esters (RCO2CH3) undergo a cleavage reaction to yield carboxylate ions plus iodomethane on heating with LiI in dimethyl form amide: The following evidence has been obtained: (1) the reaction...

The reaction of 1-chlorooctane with CH3CO2 to give octyl acetate is greatly accelerated by adding a small quantity of iodide ion. Explain.

A research center claims that 31% of adults in a certain country would travel into space on a commercial flight if they could afford it. In a random sample of 700 adults in that country, 35% say that...

You sampled 50 students at Rutgers University-Camden and calculated the mean number of hours spent studying during finals week to be 12. You also calculated a 95% confidence interval for the mean...

Target and Best Buy arc two companies that participate in the merchandising industries and are direct competitors. The financial structure and performance of the two companies differ. The links to...