Several environmental problems

Assignment Help Chemistry
Reference no: EM13887612

High phosphate levels in water systems may contribute to several environmental problems. One method to gather data for this determination would be to perform a gravimetric analysis to determine the level of phosphorus (P) in an aqueous sample by converting it to P2O7. A 25.00 gram sample of unknown water was acidified, properly treated with a precipitating agent and, when heated, showed the sample to contain 6.06% P. How many grams of P2O7 would have to be precipitated for this result?

P = 30.9738 g/mol; P2O7 = 173.94 g/mol

 

 

Reference no: EM13887612

Questions Cloud

Describe how terrorist groups use social media : Describe how terrorist groups use social media
How much of the annual receipt is included in ann agi : Ann Moore receives a $1,000 monthly payment from her former husband Bill. How much of the $12,000 annual receipt is included in Ann's AGI under each of the following assumptions? a. The monthly payment is alimony that Bill is required to pay under th..
Electron configuration for dysprosium : The ground state of dysprosium (element 66, in the 6th row of the Periodic Table) is listed as 5 Jg . What are the total spin, total orbital, and grand total angular momentum quantum numbers? Suggest a likely electron configuration for dysprosium.
Find in teslas the magnitude of the overall magnetic field : For the wires shown in the Figure below, the wires on the left carry a current of I1 = I2 = 1.6A (out of the page), the wire on the right carries a current of I3 = 3.2A (into the page), a = 0.16 m and b= 0.34 m.
Several environmental problems : High phosphate levels in water systems may contribute to several environmental problems. One method to gather data for this determination would be to perform a gravimetric analysis to determine the level of phosphorus (P) in an aqueous sample by conv..
How much did ming pay in cash dividends : Ming Company has stockholders' equity of $400,000 and net income of $68,000. It has a payout ratio of 20% and a rate of return on assets of 16%. How much did Ming pay in cash dividends, and what were its average assets?
How much gain does will recognize on the sale of the securit : How much income does Will recognize on receipt of the securities from Sandra? How much gain does Will recognize on the sale of the securities? Does Sandra recognize any gain on the transfer of the securities to Will?
Milk of magnesia is actually a suspension : Milk of Magnesia is actually a suspension (that's why instructions often mention shaking before use) of solid Mg(OH)2. 1.00 liter of solution of 0.055 moles of Mg2+ is held at a pH of 7.00. Would a precipitate form? If so, what fraction of the origin..
What percent of the clay sample was aluminum : A 5g sample of kaolinite clay Al2(OH)4Si2O5 was treated with excess HF and produced 2.50 grams of solid precipitate of AlF3. What percent of the clay sample was aluminum?Al2(OH)4Si2O5 (s) + 14 HF --> 9 H2O + 2 SiF4 (g) + 2 AlF3 (s)

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the heat release when steam is converted to water

Calculate the heat release when 62.0 g of steam at 129 C is converted to water at 50 C. Assume that the specific heat of water is 4.184 J/g x C

  Explain what is the o-n-o bond angle in no3-

what is the O-N-O bond angle in NO3- (a) less than 109.5degree (b) 109.5 degree (c) 120 degree (d) greater than 120 degree

  What type of molecular geometry electrons around the atom

Molecule with 3 single bonds and 1 lone pair of electrons around the central atom is predicted to have what type of molecular geometry? d. which of the following molecules is polar? PBr5, CCl4, BrF5, XeF2, XeF4 e. a sp3d hybridized central atom ha..

  State the concentration of the primary waste in the pond

The concentration of the primary waste in the pond is 35 mg/L. All of a sudden, the process changes and the concentration of the waste in the stream coming into the pond jumps to 250 mg/L. The pond is 500,000 L and the flow rate of the waste comin..

  Explain how many micrograms are present in 2.3469 g

How many micrograms are present in 2.3469 g? 1g= 1x10^6 micrograms. Please show your work and use significant figures in the answer.

  Explain what is the minimum distance that the moving mirror

What is the minimum distance that the moving mirror in the FTIR instrument must transit to resolve these two resonances?

  Evaluate the volume of h2 formed

The heat generated in this reaction helps melt away obstructions such as grease, and the hydrogen gas released stirs up the solids clogging the drain. Calculate the volume of H2 formed

  The hydrogen is a first order reaction with a rate constant

The decomposition of hydrogen is a first order reaction with a rate constant of 2.7 x 10^5s^-1 at 25 C. Assuming the initial concentration of H2O2 is 0.75 M. Determine (a) the concentration of H2O2 after 1.5 h, and (b) the time (in h) or the conce..

  Explain which conversion is an oxidizing agent required

Consider the conversion of CH3CH2CH2CH2OH to each of the compounds shown below. In which conversion is an oxidizing agent required

  Calculate the time required to deposit an even layer of gold

A thin layer of gold can be applied to another material by an electrolytic process. The surface area of an object to be gold plated is 49.9cm2 and the density of gold is 19.3g/cm3. A current of 3.20A is applied to a solution that contains gold in ..

  State why is the micro boiling point determined at the point

When measuring the boiling point of a compound, why is the micro boiling point determined at the point when the last bubble has left the bottom of the bell and the liquid begins to rise in the bell

  What is the concentration of the original acid solution

You then take a 10.00 mL sample of the dilute acid solution and titrate it with the standard solution. You need 10.67 mL of the standard solution to reach the endpoint. What is the concentration of the original acid solution

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