User Account

All Pages

Gravimetric analysis of iron ions

Assignment Help Chemistry
Reference no: EM13910661

A student performs the following gravimetric analysis of iron ions in a water system:Fe2+ (aq) + 2CO32- (aq) = FeCO3 (s)If this student used excess carbonate and obtained the following data, what was the original concentration in moles/L) of Fe2+ in the water sample? Total Volume of Solution: 100.00 mLMass of FeCO3 collected: 23.758 grams.Is this how you would solve it change 100 ml to .1 liters. 115.853x = 23.758 x .1 = .02 liters.

Reference no: EM13910661

Questions Cloud

Develop the mo diagram : Develop the MO diagram for LiF. Clearly indicate which atomic orbitals mix to make which molecular orbitals. Show the orbital occupancy in LiF and estimate the bond order.
Bond dissociation energy : The bond dissociation enthalpies for N2 and N2- are 945 kJ/mol and 765 kJ/mol respectively. (There is only a small difference between enthalpies and energies.) Using an argument based on MO theory, explain why N2- has a smaller bond dissociation e..
What is the concentration : What is the concentration of Br- (aq) in a solution prepared by mixing 75.0 mL of 0.62 M iron (III) bromide with 75.0 mL of water? Assume volumes are additive. the answer is 0.93 but I got 1.86 and 3.1 I'm not even sure anymore!
Find mean and the standard deviation of the round-off error : Find the mean and the standard deviation of the round-off error. Find the probability that the round-off error will be within one standard deviation of the mean.
Gravimetric analysis of iron ions : A student performs the following gravimetric analysis of iron ions in a water system:Fe2+ (aq) + 2CO32- (aq) = FeCO3 (s)If this student used excess carbonate and obtained the following data, what was the original concentration in moles/L) of Fe2+ ..
Identify the conjugate acid-base pairs : When lithium oxide (Li2O) is dissolved in water, the solution turns basic from the reaction of the oxide ion (O^2-) with water. Write the equation for this reactionand, identify the conjugate acid-base pairs.
Find probability that his forecast is at most six percent : Find the probability that his/her forecast is At least 3.5 percent,  At most 6 percent and Between 3.5 percent and 6 percent.
The replica designs case : You agreed to analyze her business operations and to advise her how to reach her modest goal of earning $25,000 per year, after taxes. After some calculation and some thought, you conclude that Jane has to increase her revenues, perhaps by achieving ..
Crystalline or amorphous solid : Based on your observations of acetamide when it reformed a solid after melting, does acetamide form a crystalline or amorphous solid? Explain the difference between these two terms as part of your answer.

Reviews

Write a Review

Chemistry Questions & Answers

  Carbon footprint is the amount of greenhouse gas emissions

carbon footprint is the amount of greenhouse gas emissions

  Calculate dh per mole of hcl and nh3 reacted

A 100. mL sample of 0.200 M aqueous hydrochloric acid is added to 100. mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480. J/K. The following reaction occurs when the two solutions are mixed.

  Evaluate the molar mass of the unknown gas

A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 125 for 1.0 of the gas to effuse. Under identical experimental conditions it required 28 for 1.0 of gas to effuse. Calcul..

  State 1erlenmeyer flask by blowing out the sample

a student carried out the experiment but did not follow the directions exacly as written. What effect would the following actions have on the experiment ?

  How does a large electronegativity difference affect

how does a large electronegativity difference affect molecular properties?1. it makes the bonds stronger and shorter

  Calculate the the equilbrium constant

At a certain temperature the equilbrium constant is 396 K for  H2(g) + I2(g) ↔ 2HI(g) , Calculate the the equilbrium constant for  0.5H2(g) + 0.5I2(g) ↔ HI(g)

  Mercury has a density of 136 g per ml a barometer holding

mercury has a density of 13.6 g per ml. a barometer holding 9.50ml of mercury has broken. the cost of mercury disposal

  Explain assign absolube stereochemistry

assign absolube stereochemistry (R or S) to each of the stereocenters in (+)menthol

  How many degrees of unsaturation are there in a molecule

How many degrees of unsaturation are there in a molecule with the molecular formula C10H14O

  Determine the mass of propylene glycol

Determine the mass of propylene glycol neded to substitute one gallon of ethylene glycol and also find out the volume of propylene glycol, required to get the same antifreeze protection as one gallon of ethylene glycol.

  Explain what is the temperature of the air

An 11 liter tank is filled with 80 moles of air at at pressure of 203 bar. What is the temperature of the air in the tank in degrees Celsius

  Explain different reasonable valence electron configurations

The element is so highly unstable that no observations of its properties have been possible. Based on its position in the periodic table, propose two different reasonable valence electron configurations for this element.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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