1.547 grams of hydrated MgSO4 is heated in a crucible. After heating, 0.7554 grams of anhydrous MgSO4 remains in the crucible. How many waters of hydration were attached to the MgSO4? Round your answer to the nearest whole number

Q: 2. Molecule #2 a)What Group? (Carb, Lipid, Protein, or Nucleic Acid). b)Within the group, how would ...

A: Carbohydrates: Carbohydrates are macromolecules with the general molecular formula  CnH2nOn.  The mo...

Q: II D The correct arrangement of figure I is: light source – monochromator – sample – photomultiplier...

A: Answer :-  light source  -->  monochromator  --> sample  -->  photomultiplier tube  -------...

Q: Determine the rate law and the value of k for the following reaction using the data provided. CO(g) ...

A:

Q: CH3 2. CHy-CM3 ÇM3 CM2-CH3 cl

A: Given compounds are : 1).  2).  3). Give the IUPAC names of the given compounds = ?     

Q: Use the following acid ionization constants to identify the correct decreasing order of base strengt...

A:

Q: How much heat is involved when an 100 g ice at 0 °C is heated to 80 °C? Specific heat of ice is 0.5 ...

A:  We have to calculate the heat involved.  

Q: In this reaction, what is the coefficient for calcium oxide? CaO(s)+CO2(g). CaVO3(s)

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both...

Q: In relation to the attached image, select the correct alternatives: (I) It is an exothermic reaction...

A: Given reaction is : In relation to the attached image, select the correct alternatives : (I). It is...

Q: solution Conductivity – high, Explanation low or zero? 0.1 mol/L ethanoic acid 0.1 mol/L ammonia A m...

A: 0.1 mol/ L ethanoic acid    Since ethanoic acid (Acetic acid) is weak, its dissociation is very low....

Q: What is the concentration of the undiluted KMNO4 solution? O 1.6872 g/L O 0.4872 g/L O 6.872 g/L 0.6...

A:

Q: Acid Rain Formation Acid Rain S02 NOX

A: The picture is showing acid rain Concept. 

Q: The reaction of finely divided aluminum and iron(III) oxide, Fe2O3, is called the thermite reaction....

A: Given,  Mass of Al = 500.0 g  Mass of Fe2O3 = 500.0 g  Mass of Fe produces = Actual yield of Fe = 16...

Q: What is the IUPAC name for the organic compound shown below?      a 1,6-dimethylcyclohexene   b ...

A: The naming of organic compounds is done by using rules given by international union of pure and appl...

Q: State whether each of the following solutions is acidic, basic, or neutral: soda, pH 3.22-         ...

A:

Q: What is the chemical formula for ferric ferrocyanide? Please explain how you got the answer

A: In Ferric ferrocyanide there is a presence of Fe3+  and [Fe(CN)6]4- ions. The possible formula writt...

Q: In the laboratory, a general chemistry student measured the pH of a 0.429 M aqueous solution of hydr...

A:

Q: Using the given data, determine the folloving information: What is the Amax of Ben? O 750 nm 400 nm ...

A: From the given data,  λmax of Ben = 450 nm Absorbance spectra of Ben  From this spectra, λmax is id...

Q: Estimate the enthalpy change for the reaction 3 H2C=CH2 (9) → C6H12 (2) using the pond energies inTa...

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Q: What is normality of a solution that contains 1.5 g of Ca(OH)2 dissolved in 850 mL? (Molar mass = 74...

A:

Q: What is the value in the concentration of the SCN Suppose the Keq for this experiment is 523. The in...

A: We have to predict the concentration of SCN- at equilibrium.

Q: he copper(I) concentration in an aqueous solution is to be measured. For the cathode alf-cell, a sil...

A:

Q: Which part in the figure can be a photovoltaic cell, phototube or photomultiplier tube?     A    ...

A: photovoltaic cell, phototube or photomultiplier tube are used as detector in spectrophotometer. 

Q: A five-fold dilution was performed on a standard solution. The diluted solution will have a higher: ...

A: We have to predict the correct option for dilution.

Q: 1. Consider the reaction at 25 degrees Celsius 2NO3 iaa) + 8H ian) + 3Cu(s) → 3CU2"(aa) + 2NO(g) + 4...

A: Here we have to determine whether the above redox is spontaneous or not in the given condition of re...

Q: A sample of 1.00 mol of perfect gas molecules with Cp = 7/2 R is put through the following cycle: (...

A:

Q: Write an equilibrium constant expression, Kc, for the following reactions: (CH3)2CO (l) ⇆ (CH3)2CO ...

A: Active mass of pure liquid component is equal to 1

Q: (Q92) Which of the following statements regarding bimolecular elementary reactions is false? O They ...

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical reacti...

Q: a) CH3MGB + CdBr2 b) C5H5NA + BeBr2 c) PHCH2OCH3 + Li d) CH CH + BCI3

A: The Reactions are Known as Metal exchange Reaction in which one metal get exchanged with other metal...

Q: 7. Determine the amount of heat (in kJ) given off when 5.43 x 105 g of NO2 are produced. 2NO + O2) →...

A: Formation reaction of nitrogen dioxide is given

Q: C - Br

A:

Q: Direction: Visualize a substance with the following points on the phase diagram: a triple point at 0...

A:

Q: How would you be able to rank the compounds on low to high solubiloty without the presence of a H? (...

A:

Q: A given chemical reaction is being conducted at both 0.00 °C and 50.0 °C. The activation energy is 6...

A:

Q: at mass

A:

Q: Question 23 Using the given data above, determine the following information: What is the Amax of Jer...

A: As λmax is wavelength where sample of same compound of same concentration show maximum absorbance.

Q: 1. Determine the normality of a solution which contains 2.83g of calcium sulfate in 500ml solution?

A: Normality: the number of gram equivalent moles of a solute present in one litre of the solution is c...

Q: 1. Find the vapor pressure of a solution containing 35.0g calcium chloride (CaCl2) in 750.0g water. ...

A: Vapour pressure of solutions is equal to pressure of pure components multiplied by mole fraction

Q: Indicate whether each of the following solutions is acidic, basic, or neutral: a. [H₃O⁺]= 2.0 x 10⁻...

A: There various parameters to know about acidity,basic and neutral.  Acidity means there must be H+ io...

Q: The purpose of adding sodium sulfate in the extraction is to decrease the solubility of caffeine in ...

A: Given question is :  The purpose of adding sodium sulfate in the extraction is to decrease the solub...

Q: calculate the molarity. (a) 8.0 g of sodium hydroxide, NaOH, dissolved in 150 cm3 of water.

A:

Q: Question 24 Using the given data above, determine the following information: What is the concentrati...

A: As per Beer-Lambert's law:

Q: What is the mass in grams of 7.70 × 1014 lead (Pb) atoms? × 10 Enter your answer in scientific notat...

A:

Q: Consider a voltaic cell in which the following reaction takes place. 302 (9) + 4H + (aq, pH = 1.24) ...

A: O2(g) + 4H+(aq, pH = 1.24) +4Br-(aq, 0.15 M) ----> 2H2O(l) + 2Br2(l) pH = -log [H+] 1.24 = -log [...

Q: CH3OH + H2O = ? Si(OH)4 + H2O = ? HS- + H2O =? What is the conjugate base and acid of the ff?

A:

Q: 3) What will be the products of these reactants? A. В. H2O2

A: This is a type of oxidation reaction which is known as ozonolysis.

Q: Quèstion 19 A solution of potassium permanganate of unknown concentration was analyzed against a sta...

A: 2nd option is correct that is y= 0.74923x -0.03231

Q: Which property of laser light is NOT correctly defined/described? extremely bright: high power at on...

A: Laser light have the following properties Extremely bright.  Monochromatic.  Collimated.  But not a...

Q: Answer the ff questions using the diagram provided 1. Is the reaction exothermic, endothermic or nei...

A:

Q: B C Which part in the figure can be a grating or prism? A *中3中。 BC D * O O O O

A: Prism- An optical prism is a transparent optical element with flat, polished surfaces that are desig...

Q: Calculate the standard enthalpy of reaction at 333 K for A(s) + 2B(g) -> C(g) given that the standar...

A:

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".