Explain what was the percent caco3 in the unknown

Assignment Help Chemistry
Reference no: EM13245516

In one experiment, a student added a total of 15.00 mL of 0.5241 M HCl to 1.4881 g to of an unknown which contained CaCO3 (molar mass = 100.09 g/mol). The resulting solution required 12.21 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO3 in the unknown? Report your answer to two (2) decimal places.

Reference no: EM13245516

Questions Cloud

What are three new types of merchandising accounts : Merchandising What is the difference between a service and a merchandising business? Provide an example of each. What are three new types of merchandising accounts?
What is the force of the track on the car : A roller coaster car has a mass of 500 kg loaded with passengers. The car passes over a hill of radius 15m, What is the force of the track on the car at the top of the hill
What is the linear velocity of the club : During Charlie's golf drive, the angular velocity of his club is zero at the top of the backswing and 20 rad/s, What is the linear velocity of the club head just before impact with the ball
If contract promises were not excused because of acts of : If contract promises were not excused because of acts of war, would the clearing and settlements clients of Bank of New York change their behavior?
Explain what was the percent caco3 in the unknown : A student added a total of 15.00 mL of 0.5241 M HCl to 1.4881 g to of an unknown which contained CaCO3 (molar mass = 100.09 g/mol). The resulting solution required 12.21 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO..
Find the total pressure at the nose : Consider an airplane flying at Mach 4 at 70,000 feet. A shock is formed due to supersonic flow. Find the total pressure at the nose using 3 approaches
By what amount will total lendable deposits in the banking : Joe has never trusted banks and always kept his money in cash. Joe pulls out his money jar, discovers that it has $20,000 in it, and decides it is unsafe to keep that much cash. Joe stops at the Local
What would a minimum wage do in a monopsonistic market : Demonstrate how a minimum wage affects the unskilled labor market. Is the labor market perfectly competitive Can you find any examples of monopsonistic hiring What would a minimum wage do in a monopsonistic market
Discuss why govt often gets involved when finding solutions : It has been proposed that toll collection on the Massachusetts Turnpike, a key commuter route into Boston from the west, be discontinued. Proponents argue that tolls have long ago paid for the cost of building the road

Reviews

Write a Review

 

Chemistry Questions & Answers

  State anaerobic fermentation experiment

WHY did lactose produce mnCO2 in an anaerobic fermentation experiment? (Hint: lactase mechanism, how do sugar transporters work,

  What is the equilibrium concentration of hydronium ion

What is the equilibrium concentration of hydronium ion in a solution that is 0.041 M in HF and 0.19 M in F1- ion.

  Explain what mass of lithium phosphate is needed to prepare

What mass of lithium phosphate is needed to prepare 600 ml of a solution having a lithium ion concentration of 0.225 M?

  Explain a buffer and explain how a buffer works

From the examples you state, select one acid, one base, and one salt and describe specifically how and where they are used in therapeutic processes. Define a buffer and explain how a buffer works.

  What equation would be used to solve for the equilibrium

A mixture of 1 atm chlorine gas and 1 atm oxygen gas and no product undergoes this reaction. Cl2 + 2 O2 ---> 2 ClO2 What equation would be used to solve for the equilibrium concentrations

  Explain a system is expanded against an external pressure

A system is expanded against an external pressure of 2 atm, changing its volume from 10 to 35 L and absorbing 765 J as heat from the surroundings

  State the high internal concentration in cells is maintained

The concentration of K+ in blood plasma is about 0.0050 M. The high internal concentration in cells is maintained by pumping K+ from the plasma. How much work must be done to transport 1.0 mol K+ from the blood to the inside of a muscle cell at 37..

  Compute the ph at the equivalence point

Calculate the pH at the equivalence point for the titration of 0.25 M CH3COOH with 0.25 M NaOH. (For CH3COOH, Ka= 1.8 × 10^-5)

  Explain the chromium in the ore as chromium phospate

A 6.50 gram sample of an ore containing chromium is dissovled and then treated with an excess of Na3PO4 (aq), which precipitates out all of the chromium in the ore as chromium (III) phospate, CrPO4.

  Calculate the mass percent of a solution

Calculate the mass percent of a solution that is prepared by adding 61.4 g of rm NaOH to 413 g of {rm H_2O}.

  Compute the mass percetage of nacl

the resulting solution required 38.10mL of 0.08765M AgNO3(aq)to precipitate the Cl(aq) and BrCl(s)and AgBr(s) calculate the mass percetage of NaCl(s)in the mixture

  Compute the molar solubility of calcium hydroxide

Calculate the molar solubility of calcium hydroxide in a solution buffered at each of the following pH's.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd