Iron(II) sulfate forms several hydrates with the general formula FeSO4·xH2O, where x is an integer. If the hydrate is heated, the water can be driven off, leaving pure FeSO4 behind. Suppose a sample of a certain hydrate is heated until all the water is removed, and it's found that the mass of the sample decreases by45.%. Which hydrate is it? That is, what is x?

Q: Determine the pH of the following solutions, given that Ka (HF) = 6.8 x 10-4. Hint: 1. Diagnose the…

A: a) NaF (F- ions) reacts with water and HF (hydrofluoric acid) and OH-(hydroxide ions) are formed. HF…

Q: An aqueous solution of Ca(OH)2with a concentration of 0.200 M was used to titrate 25.00 mL of…

A: Given ->  Molarity of Ca(OH)2 = 0.200 M = M1 Volume of Ca(OH)2 = 17.73 ml = 0.01773 L = V1 (1L =…

Q: HC H3C CH-N-CH3 + HBr(aq) — ? Н

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: Answer the following to the best of your ability: a. Why does nitrogen have a smaller radium than…

A: Atomic size is the distance between the centre of the nucleus of an atom and its outermost shell.In…

Q: Determine the pH of the titration system of 0.02 L, 0.100 M H2A (diprotic acid) when it is titrated…

A: Here 0.02L of 0.1M H2A is titrated with0.34L of 0.1M of NaOH solution. We have to determine the pH…

Q: Compound A is a meso compound. Compounds A and B are enantiomers of each other. Both statements are…

A: The molecules with the same molecular formula but different structures are known as isomers. If the…

Q: 5.8 Suppose your campus water supply was contaminated with trichloroethylene (TCE) at a…

A: Given data :

Q: What weak acid has a pKa of 5.02 and a molar mass of 201.0 g/mol?

A: Pka value is given by the formula  Pka=-logka. When the pka value is low it is more acidic in Nature…

Q: How is the value of the equilibrium constant affected by the concentration of the reactants used

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: Explain the greenhouse effect in detail

A: When the radiations from the sun are absorbed by the green house gases and is not reflected back…

Q: In order to determine the point group of a molecule, a thorough understanding of their molecula…

A: Here we are required to find the geometry of BH4+

Q: 2. What is the percent error in a measurement of the boiling point of naphthalene (CioHs) as 231.0…

A: Percent error is calculated by using the formula  Percent error=|Measured value-True value|True…

Q: Phthalic acid (H₂CH₂O₂) is a diprotic acid with Kal = 1.12 x 10-³ and K₁2 = 3.90 x 10-6. Determine…

A: Given data :

Q: Consider these reactions, where M represents a generic metal. 2 M(s) + 6HCl(aq) 2 MC1₂ (aq) + 3 H₂…

A:

Q: olume of 500.0 mL of 0.110 M NaOH is added to 585 mL of 0.250 M weak acid (K₁ = 3.85 x 10-5). What…

A: Given -> Volume of NaOH = 500 ml = 0.500 L (1L = 1000ml)  Molarity of NaOH = 0.110 M  Volume of…

Q: What is the pOH of 0.00770 M HClO4? Is the solution neutral, acidic, or basic?

A:

Q: At 25 °C, only 0.0210 mol of the generic salt AB is soluble in 1.00 L of water. What is the ?spof…

A:

Q: Benzyl amide and benzyl alcohol NH₂ benzyl amine aOH OH benzyl alcohol

A:

Q: 8. What effects would the following changes have on the rate of the SN2 reaction between CH3l and…

A:

Q: MATTER AND MEASUREMENT REVIEW 2. What is the percent error in a measurement of the boiling point of…

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Q: Draw the enantiomers of 2-methyloxirane

A: Given ->  2-methyloxirane

Q: What element would be associated with the following quantum numbers? n = 3, 1=1, m₁ =0, ms = - 1/2

A:

Q: Determine the milligrams of CCI produced when 325 milligrams of CS, reacts with Cl, according to the…

A:

Q: 6. Supply mechanisms for the following reactions showing all intermediates, all formal charges and…

A: #6: (a): The reactant is an alkene that is right in Pi-electron. HBr undergoes addition reaction…

Q: Calculate ΔG0 and K for the following reactions at 250C: a) Mg(s) + Pb+2 (aq) Mg2+ (aq) + Pb(s) b)…

A: From the formula ∆G° = - nFE° K = 10 nE°/0.0591

Q: 1.What is the difference between ionization and electrolysis? 2.Why is electrolytically refined…

A: difference between ionization and electrolysis.

Q: What is the correct relationship between the following two molecules? constitutional (structural)…

A:

Q: Researchers discover a new amino acid. Its R-group exclusively has hydrogen and carbon atoms. What…

A: We have been given that researchers discover a new amino acid. Its R groop exclusively has hydrogen…

Q: In order to determine the point group of a molecule, a thorough understanding of their molecular…

A: This question belong to chemical bonding and molecular structure using group theory. Steric Number =…

Q: Predict the product of each monosaccharide reaction. Modify the molecule to show the may need to be…

A:

Q: 8. What carbonyl compound and what phosphorous ylide might you use to prepare the following…

A: The conversion of carbonyl compounds into alkene by the reaction with the triphenyl phosphonium…

Q: 1. A Filipino engineer, who practices his profession abroad due to high inflation in the…

A: Molar mass of laughing gas, M1 = 44 g/mol Molar mass of tear gas, M2 = 176.4 g/mol Total length of…

Q: True/False: The DNA strands run antiparallel from the 3' phosphate to the 5' hydroxyl to make the…

A: DNA stand from Deoxyribonucleic acid

Q: Draw the structure of the product of the reaction between the compound shown below and H,50,…

A: AAC2 mechanism (Acid-catalysed, Acyl-oxygen cleavage, bimolecular): It is one of  common mechanisms…

Q: The sugars can be classified as either aldoses or ketoses. Classify each structure with the correct…

A:

Q: Using the diagram below, label the polar "head" groups and the nonpolar "tails" and indicate whether…

A:

Q: 10. Use the information given for each of the following reactions and predict the direction (right,…

A: #10: A reaction is product favored (Right direction) when K > 1.  A reaction is reactant favored…

Q: Starting from the wedge-and-dash structure below, rotate the back carbon to provide the Newman…

A: ->eclipsed newmann projection is form in which the dihedral angle between the bulkier  groups is…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: How many moles of Ba(MnO4)2 are there in 88.83 g of it? How many particles are there in 43.25 g of…

A:

Q: A physician prescribed an antibiotic to be mixed in white petrolatum to produce a 25% antibiotic…

A: This problem is based on general chemistry where we have to deal with percentage concentration…

Q: Calculate the pH of a solution that is 0.0230 M in a. H3PO4 (Kal = 7.1 × 10-³). pH = b. H3PO3 (K₁1 =…

A:

Q: CIIIC H O|||I H OH a. Generate a Newman projection of the molecule shown above. The red arrow…

A:

Q: 6. For the following synthesis schemes, fill in the missing molecules. Note, you do not understand…

A:

Q: Question: The energy of an electron transition in hydrogen atom is calculated using the following…

A: UV range = 200-400 nm  Visible range = 400-800 nm

Q: When ammonium (NH4+) is placed in water, a chemical reaction occurs and an equilibrium is…

A: Given, Reaction : NH4+(aq) +H2O(I)⇌NH3(aq)+H3O+(aq) pH= 7.4

Q: You add 7.50 mL of 0.050 M NaOH to 50.00 mL of pure water, and to this mixture you then add 1.50 mL…

A:

Q: Calculate the amount of heat needed to melt 49.8 g of solid hexane (C6H₁4) and bring it to a…

A: we have to calculate the heat needed to melt hexane under given conditions

Q: For the diprotic weak acid H₂A, Kal = 3.7 x 10-6 and Ka2 = 6.1 x 10-⁹. What is the pH of a 0.0800 M…

A:

Q: Question 15 A student designed an experiment to test the hypothesis that even very cold objects…

A: heat transfer between two substances takes place whenever there is a temperature difference.  Heat…

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".