Determine the empirical formula of hydrated calcium

Assignment Help Chemistry
Reference no: EM132748029

'Plaster of Paris' is a hydrated form of calcium sulphate, CaSO4, where water exists as part of the crystal structure of calcium sulphate. With heating, the water can be driven off to leave a sample that is only calcium sulphate. If the mass of a sample of plaster of Paris is 1.450g before heating and 1.360g after heating, determine the empirical formula of hydrated calcium sulphate, that is the simplest mole ratio of CaSO4:H2O (xCaSO4.yH2O).

Reference no: EM132748029

Questions Cloud

Draw an energy-level diagram : Draw all possible emission lines between these levels. In your diagram, ensure that the energy levels are spaced correctly (e.g. according to the Bohr model).
Compute basic earnings per share : Myers Drugs Inc. has 2 million shares of stock outstanding. Earnings after taxes are $8 million. Myers also has warrants outstanding that allow the holder.
Empirical and molecular formulas of caffeine : Caffeine contains by mass 49.5% C, 5.15% H, 28.9% N and 16.5% O, and the molecular mass is 195g/mol. What are the empirical and molecular formulas of caffeine?
Determine the optimal number of doughnuts : Determine the optimal number of doughnuts, in dozens, to stock if labor, materials, and overhead are estimated to be $3.85 per dozen, doughnuts are sold for $5.
Determine the empirical formula of hydrated calcium : Plaster of Paris' is a hydrated form of calcium sulphate, CaSO4, where water exists as part of the crystal structure of calcium sulphate. With heating
Concentration of the conjugate base : The pK MSelect one:a. 0.20 Mb. 0.050 Mc. 0.15 Md. 0.35 Me. 0.26 M aof a weak acid was determined to be 3.39 by measuring the pH of a solution containing
Analyse the given problem for fraud risks : Analyse the following for fraud risks: Mr. Qwerty works for as the general manager for a large private company; JKL Ltd. He gets paid a salary and a bonus.
Drew argue about undiscovered elements : Your aunt is sipping on iced tea and fanning herself during a hot South Carolina summer day. You tell her that there is enough energy in one drop of her iced
Questions on aldrin pesticide : What are the allowable concentrations of the pollutant (aldrin) in drinking water in ppb or ppm?

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the heat transferred to the surroundings

Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3) as water, calculate the heat (in J) transferred to the surroundings

  Explain the reaction at standard conditions

Classify each mixture by what it indicates about and for the reaction at standard conditions.

  Explain satisfy the new volume and pressure

We will define STP as 25 C and 1.00 bar. If a container holding neon gas is at volume of 52.6 L at STP, and the gas is compressed to 27.3 L and 2.01 bar, to what must the temperature change to, in K, to satisfy the new volume and pressure

  Compute the solubility-product constant for cd3(po4)2

It is found that 6.25e-06 g of Cd3(PO4)2 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Cd3(PO4)2.

  Draw the structure of the simple dipeptides gly-ala

Draw the structure of the simple dipeptides gly-ala and ala-gly. Circle the peptide bond in each structure.

  Angular momentum of the electron

For a particle moving in a circular orbit, the quantity mvr (mass x velocity x radius of the orbit) is a fundamental quantity called the angular momentum of the particle. Show that equation 2(3.144)r=n(lambda) is equivalent to the condition that t..

  Make sure to use the correct units

Using the molar ratio, determine how many liters of 0.180M lead (II) nitrate are required to react completely with 0.08 L of 0.130 M manganese (IV) chloride. Show work. (Superscripts= X^2, subscripts= X_2). Make sure to use the correct units.

  Apply dalton law of partial pressures

Please provide help with the formula for the following problem: 10.0 grams of argon and 20.0 grams of neon are placed in a 1200.0 mL container at 25.0c.

  Intergranular corrosion and selective leaching

In both cases write the oxidation and reaction processes assuming the corrosion reactions have been at neutral atmosphere

  Examples of elitism as it applies to craft

Define, explain and provide some examples of elitism as it applies to craft and industrial unions?

  Compute the ph of the solution after the volume of base

A 20.00 ml sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volume of base has been added: 20.1 ml.

  Explain the wavelength of a photon whose frequency

What is the wavelength of a photon whose frequency is 3.41*10^14 Hz? been told the correct asnwer is 880 nm however I don't know how to even start this problem

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