When 0.0916 g P406 were mixed with 0.113g H20, a student obtained 0.121g H3PO3. What was the percentage yield? P406+ 6H 20 → 4H3 PO 3 37.2% O 75.7% O 56.2% O 88.3%

Q: An LC separation specifies that the mobile phase be 25% tetrahydrofuran (THF) in water. Unfortunatel...

A:

Q: An analyte is found to elute from a reversed-phase column with a retention factor of 12.5 when a 20%...

A: Given data  :- At 20% ethanol and 80% water concentration retention factor = 12.5

Q: How many grams of the chloride salt of the conjugate acid must be combined with how many grams of th...

A: Q1)                             pH = 4.73 pOH = (14.00 - 4.73) = 9.27 To get pOH of 9.27 , we have t...

Q: 2. The work function (L14-4) for Al is 4.2 ev. What is the maximum wavelength of the electromagnetic...

A: When a photon of electromagnetic radiation with sufficient energy falls on the surface of the metal,...

Q: If the rate of change of Cl2 is -0.0480M/s, what is the rate of change of NO? 2NO(g) +Cl, (g) → 2NOC...

A:

Q: Consider a traditional Diels Alder reaction noting it's methodology and synthetic tactical. Then pro...

A: A question based on green chemistry that is to be accomplished.

Q: What is the type of catalysis is in the given reaction: CH3 – CH = CH2(g) + H2(g) Ni (s)  CH3CH2CH3(...

A:

Q: Part A Water ionizes by the equation H2O(1) =H (ag) + OH (ag) The extent of the reaction is small in...

A: We have given poH and have to find [H+] in A part, rank in b part and kw in C part

Q: The molal freezing point constant for water is 1.86 oC/m. At what temperature will a mixture of 2.00...

A: Given,  The mass of CaCl2 = 2.00 g.                            The mass of water = 25.0 g.          ...

Q: Which solution would have the lowest pH?      Select one: a. 0.1 mol/L NH3(aq) b. 0.1 mol/L HCl(aq) ...

A:

Q: 2. Predict the major product of the following EAS reactions. Assume only one equivalent of reagents....

A:

Q: 61. This intermolecular forces (IMF) is called H H C Electron from hydrogen Electron from carbon O h...

A: The intermolecular force is 

Q: 51 are substances that changes colour when in contact with acidic, basic o neutral solutions. * O in...

A:

Q: For the reaction shown below, what is the relationship between the rate of formation of Br2 and the ...

A:

Q: SYNTHESIS AND DECOMPOSITION Name: 1. Perform each reaction at your lab bench by following the direct...

A:

Q: 5. Benzaldehyde can slowly oxidized into benzoic acid by contact with air. What would be the effect ...

A: Answer and explanation is given below hope you like it.   Benzoic acid acts as catalyst in WITTIG Re...

Q: A 1 liter solution contains 0.448 M nitrous acid and 0.336 M potassium nitrite.

A:   HNO2 + KNO2 mixture will acts as acidic buffer Added strong acid HCl, it reacts with salt KNO2  an...

Q: A 3.05 g sample of an unknown gas at 21 °C and 1.10 atm is stored in a 1.95 L flask. What is the den...

A:

Q: Part 1: How much FeO is produced starting with 1.10 g FeS and 0.560 moles of H2CO3 if the reaction r...

A: Answer: This question is based on the concept of limiting reagent. Limiting reagent is the reactant ...

Q: Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the react...

A:

Q: A buffer sSolution contains 0.388 M ammonium bromide and 0.290 M ammonia. If 0.0311 moles of sodium ...

A:

Q: 70. This figure below is called adunt O myglobin O hemoglobin O globulin

A: Hemoglobin is a globular protein found in the RBCs, which are responsible for the transport of oxyge...

Q: Chiral Atoms: Determine how many chiral centers each molecule has and indicate which atoms are chira...

A:

Q: Write equations showing how each of the following weak bases

A:   Acid-base theories :  1. Arrhenius acid-base theory :  Acid : it increases  H+ ion  concentration ...

Q: What is the freezing point (°C) of a solution prepared by dissolving 50.0 g of glycerin in 200.0 g o...

A: Given data is as follows: The mass of glycerin = 50.0 g The mass of ethanol = 200.0 g The freezing p...

Q: A natural product, P, has a Kp between water (aq) and ethyl acetate (ea) of 13.4. A 50.00-mL sample ...

A:

Q: 50. What is the name of this compound 3HC-CH2-CH2-CH2-CH2-CH2- NH2? * 1-hexanamide 1-hexanamine hexa...

A:

Q: When 0.0916 g P406 were mixed with 0.113 g H2O, a student obtained 0.121g H3PO3. What was the percen...

A:

Q: 27 A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 x 10"' g. Use this information to an...

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: 10:40 1 ll Question 1 of 4 Done Draw the major product of this reaction. Ignore inorganic byproducts...

A:

Q: A sample crude oil contains 3.11mM naphthalene, 13.6 mM methylnaphthalene, 23.2 mM dimethylnaphthale...

A:

Q: A solution contains 6.16x1o-3 M potassium chromate and 9.26×10-3 M ammonium phosphate. Solid calcium...

A: 1.)  A.) First we would check which precipitates can form. Then we would check the Ksp values of bot...

Q: Suppose an EPA chemist tests a 250. mL sample of groundwater known to be contaminated with iron(III)...

A: Answer: This question is based on stoichiometric calculation. First of all we will calculate the num...

Q: Which of the following solutes will have the lowest vapor pressure given the same amount in moles?  ...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: Write the balanced net ionic equation and name the precipate formed  1. Cu (NO3)2 (aq) + Na2Co3 (aq...

A:

Q: The rate constant for the reaction below was determined to be 3.241x10-5 s1 at 800 K. The activation...

A:

Q: Given the following reactions:             N2(g) + 2O2(g) → 2NO2(g)      ΔH = 66.4 kJ             ...

A:

Q: Hydrogen iodide decomposes according to the equation 2HI(g) (equilibrium sign) H2(g) + I2(g), for wh...

A:

Q: Write a balanced chemical equation for each of the following: a. precipitation of nickel ion b. iden...

A: The objective of the question is to write the chemical equations of the following given questions.

Q: Rank the following elements in order of increasing atomic size: carbon, silicon, Florine

A: We have find out atomic size.

Q: An ideal gas is allowed to expand from 6.40 L to 48.0 L at constant temperature. By what factor does...

A:

Q: A sample of as is made up entirely of carbon dioxide and water, and there are 259 moles of CO2 and 5...

A: Answer: This question is based on the dalton's law of partial pressure which suggests that partial p...

Q: Why do you think there are slots in the metal atoms

A: A metal is a material, when freshly prepared, polished or fracture shows a lustrous appearance and m...

Q: Wine goes bad soon after opening because the ethanol (CH,CH,OH) dissolved in it reacts with oxygen (...

A: Given :-  ethanol + oxygen → acetic acid + water  no. of moles of ethanol = 2.1 mol  To calculate :-...

Q: Which of the following exhibits negative entropy change? O An ice cube melts on the table. O A lump ...

A: The objective of the question is to find out which one of the following is an example of negative en...

Q: Which of the following statements determine a reaction to be spontaneous? O The ASpxn is positive. O...

A: The relation between change in entropy, enthalpy, and Gibbs free energy can be given as: ∆G=∆H-T∆S  ...

Q: Do you think that leucine would have the same or a different structure depending upon if it was diss...

A:

Q: Another student performed the same percent composition of a hydrate experiment, but kens the crucibl...

A: 3a. The experiment was the determination of percent composition of hydrate.

Q: If the H+ concentration in a carbonated beverage is 4.7 ´ 10-5 M, what is the OH- concentration? (Kw...

A: The H+ and OH- concentration in aqueous solution is related by the following relation- H+ + OH- = Kw...

Q: Calculate the concentration of all ions present in each of the following solutions of strong electro...

A: Given :  a. 0.15M CaCl2b. 0.26M Al(NO3)3c. 0.25M Al2(SO4)3  To be calculated :-  Concentration of ea...

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".