A sample of an unknown hydrate weighs 0.500 g and after heating it weighs 0.100 g. What is the percent of water in the hydrate?

Q: Using symbols □ for S atoms, and ○ for O atoms, draw the simplest representation of reactant and…

A: Following representation observed:-

Q: 5 Work Problem Hydrogen peroxide decomposes according to the following reaction: H₂O2 (1) = H₂O)…

A:

Q: (a) Provide four distinct forms of phenylalanine. (b) Rank the solubility of these forms in water.…

A: Solubility of amino acid in water depends on the charge in that form of amino acid. More the charge…

Q: Draw the Lewis Structure of CH3OCH3 Molecular Geometry? Ideal Bond Angles? Are there Polar Bonds…

A:

Q: List the essential parts of a functions for each component. spectrophotometer. Hence write the…

A: A question based on analytical process. Working principle, essential parts and functions for each…

Q: www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IJ-TnplXoFu0F7UjsroJMKrbFHXPNvwILIE9eRim2d5…

A: Buffer Is a combination of weak acid / its conjugate base or Weak base/ it's conjugate acid  Pkb =…

Q: Discuss the following effect on the retention time (increase, decrease, remain the same or become…

A: In column chromatography, a stationary phase and a mobile phase are used to separate the components…

Q: Part A What type of bonding occurs between the atoms of a CF4 molecule? O covalent O London…

A: Different types of intermolecular forces: Dipole dipole attraction : it can be defined as the…

Q: 3. Determine the K₂ and pK₂ (to two decimal places) for an aqueous solution containing 0.19 M of a…

A:

Q: Report Table CHO.13: Results of Chemical Tests on Unknown Sample Benedict's test: Blue solution…

A:

Q: Give me a clear handwritten answer with explanation....please give answer all sub parts please

A: (1)identify what is the longest carbon chain  (2)identify the functional group in given question…

Q: Elemental S reacts with O₂ to form SO3 according to the reaction 2S + 302 2SO3 Part A How many O₂…

A:

Q: How many moles of nitrogen, N, are in 67.0 g of nitrous oxide, N2O? Express your answer with the…

A: Moles : Mole is an unit of amount ofsubstance for measuring large quantities of very small entities…

Q: Please include steps, formula and transformations as well as explanations. Thank you. Calculate the…

A:

Q: What is the predominant intermolecular force in the liquid state of H-F? O Hydrogen bonding O London…

A:

Q: CHS +37 CH3 C413 CHS

A:

Q: In a coffee cup calorimeter, a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of…

A: Specific heat : It is defined as the quantity of heat required to raise the temperature of one gram…

Q: The results in the table below were obtained from the analyses of Mg2+ content in an orange juice…

A: A question based on tools in analytical chemistry. A set of data about AAS results for Mg2+ ion is…

Q: Find the pH of a solution with a hydroxide ion concentration of 0.025M.

A: hydroxide ion concentration (OH-) = 0.025M.

Q: Ethane dissociates into methyl radicals at 700.°C with a rate constant of 5.50x10-4s-1. If the…

A: Given, that rate constant for the dissociation of ethane into methyl radicals at temperature 700 °C…

Q: How many grams of copper (II) fluoride are needed to prepare 684 mL of a 2.15 M solution?

A:

Q: how would i get the the enthalpy change for this process?

A: From step-3, the enthalpy of reaction, ∆Horxn = - 4702.86 kJ  The required conversion factors from…

Q: Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in…

A: ♧ Oxidation : Loss of electrons with increase in the oxidation state .♧ Reduction : Gain of…

Q: The source of bitterness in dark chocolate is the compound theobromine, an alkaloid present in cocoa…

A:

Q: The following mechanism has been proposed for the formation of N₂ and H₂O from H₂ and nitrogen…

A:

Q: 3. Using your orbital diagrams, briefly explain why Se²-, Sn4+, and Sn²+ are common ions for Se and…

A:

Q: H-Br Br HH - H₂O Br:

A: First step involves the proton transfer. Here protonation of -OH group occurs in presence of HBr.…

Q: Silicon (28 g, 1.0 mole) and oxygen (128 g, 4.0 moles) are reacted in a sealed container. At the end…

A: Given  Si = 1 mole , 28 grams O2 = 4 mole = 128 grams 1 mole of Si react with 1 mole of O2 to give…

Q: O Macmillan Learning When part of a molecule, what is the typical number of bonds and nonbonding…

A: We have to tell the typical number of bonds and the non-bonding electron pairs for each of the atoms…

Q: The below picture is the electrostatic potential plot for valine molecule. The blue regions are…

A: We have to explain the charge distribution on the valine molecule based on the bond polarity. We…

Q: Using general tendencies and the chart given in the introduction, predict the most likely mode of…

A: Here we have to predict the types  of radioactive emission occur in the following radioactive…

Q: What is the pH of a 3M solution of HNO3?

A:

Q: A 57.0 mLmL sample of a 0.108 MM potassium sulfate solution is mixed with 37.0 mLmL of a 0.106 MM…

A: According to question A 57.0 mL sample of a 0.108 M potassium sulfate solution is mixed with 37.0 mL…

Q: Write the complete ground-state electron configuration of Cs*.

A: Electrons are filled in the sublevels in order of their increasing energies.

Q: In the given three-dimensional molecular structure, the D differently colored spheres represent…

A:

Q: Me Q TI Um Å Draw the mechanism 2. HS 3. Raney Ni MeO. FC Et

A:

Q: A buffer solution has a pH of 6 and the pKa of the acid is 5, what is the ratio (or quotient) of the…

A:

Q: 6. Find AH for the following reaction: Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO₂ (g) Use these…

A:

Q: 2. Treatment of the ketoaldehyde below with aqueous base and heat could product several cyclic…

A:

Q: A solution is prepared at 25 °C that is initially 0.18M in dimethylamine ((CH3)₂NH), a bromide…

A: Given,  Concentration of dimethylamine = [(CH3)2NH] = 0.18 M Concentration of dimethyl ammonium…

Q: Solid potassium fluoride is dissolved in water in a perfect calorimeter. When 10.00 grams of…

A: To calculate q for solution or reaction, we must first know about some values i.e., Mass = (120+10)…

Q: 12253I → 12254Xe+?   Complete and balance the following nuclear equations by including the missing…

A: In a nuclear equation, the total mass number and total atomic number are balanced.  Hence while…

Q: A solution contains one or more of the following ions: Ag+, Ca²+, and Co²+. Lithium bromide is added…

A: Given the solution doesn't form any precipitate with the bromide ion(Br-), but forms a precipitate…

Q: The decomposition of N₂O4 at 25 °C, N₂O4(g) → 2NO₂(g) has Kc = 4.61 x 10-³. A 3.55 L vessel…

A:

Q: Calculate the degree of unsaturation (DU) for the molecule shown below. HO Hill... |||| OH

A:

Q: Suppose a 250. mL flask is filled with 0.80 mol of OC12, 1.4 mol of BrOCI and 0.30 mol of BrCl. The…

A: Given :  Moles of OCl2 = 0.80 mol  Moles of BrOCl = 1.4 mol  Moles of BrCl = 0.30 mol  Volume of…

Q: ther acid dissociation constant of hydrocyanic acid (HCN) at room temp is 4.9 X 10^-10. what is the…

A:

Q: The overall chemical reaction after combining the 4 chemical reactions mentioned in your procedure…

A: From balanced chemical reactions Two mole of aluminium produced two mole of alum

Q: Onanono100 Now we will mix two soluble liquids, water and ethanol and determine the final…

A: When Ethanol at lower temperature is added to water at higher temperature, then water will lose heat…

Q: Question 1 Draw the structure of the hemiacetal derived from 2-Hexanone + 2-Propanol >>> ? Upload…

A: -> Hemiacetal forms when  1 equivalent alcohol reacts with ketone or aldehyde .But when 2…

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".