A student mixes a solution of aqueous sodium dichromate Na2Cr2O7 with an acidified solution of aluminum nitrate Al(No3)3 Predict whether this reaction is spontaneous. Explain the solution and write a balanced chemical equation

Q: What is the osmotic pressure of a solution with a molarity of 0.884 M at 16oC?

A: Given data :  1. Concentration (C) =0.884 M  2. Temperature (T) = 16oC = 16 + 273 = 289k

Q: Determine the number of moles of HH in each sample.   4.70 mol H2O to mol

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

Q: For the reaction shown, find the limiting reactant for each of the following initial amounts of…

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Q: For the reaction shown, calculate how many moles of each product form when the given amount of each…

A: • The reaction is :-    C3H8(g) + 5O2(g) ----> 3CO2(g) + 4H2O(g)            This reaction means…

Q: H₂/Pt/C/EtOH 1. BH, THF 2. H₂O₂/OH/H₂O HBr ROOR

A: (1)this is reduction reaction  (2)this is hydroboration reaction in this get primary alcohol as…

Q: What is the difference between a stereocentre and a chiral molecule?

A: Definitely, the stereocentre and a chiral centre both are the different things.

Q: Provide the hybridization for the indicated atoms in Welwitindolinone A.

A: In this question, we have to provide the hybridization for the indicated atoms in Welwitindolinone A…

Q: What is the speed of an automobile in kilometers per second if it travels at 30 miles per houl! How…

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Q: The unbalanced reaction for the combustion of pentane (C5H12) is: C5H12 + O2 ⟶ CO2 + H2O If the…

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Q: When comparing two compounds, the more acidic compound will have a lower; lower lower, higher…

A: According to Arrhenius concept, an acid is a substance i.e. when dissolved in water gives H+ ions .…

Q: In the two boxes below, draw wedge and dashed wedge pictures of CH2BrCl from two different angles…

A: A 3D representation of a molecule was first illustrated by Jacobus Can't Hoff using wedge and dashed…

Q: Balance each chemical equation. H2(g)+N2(g)→NH3(g)

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Q: 3. a) Alpha particles of the same initial speed are shot at the same intensity toward gold, silver,…

A: #3: #(a): We use the formula below from Rutherford's scattering experiment for the number of…

Q: 100.0 mL of 0.120 M ammonium hydroxide (Kb = 1.75 x 10-5); Kw = 1.00 x 10-14) is to be titrated with…

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Q: 25.0 mL of a 5.00 M solution is diluted to 1.00 L. What is the new concentration?

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Q: Examine the models of the lattice of ZnS (zinc blende) and Fe metal on display. a) Write the type of…

A: Zinc sulfide(ZnS) exists as two different crystal lattices which are Zinc blend (or sphalerite) and…

Q: 10.34 Calculate the [H3O+] of each aqueous solution with the following [OH]: a. baking soda, 1.0 x…

A: Formula :  [H3O ] = 10-14 / [ OH-  ]

Q: What is the long-hand electron configuration of chromium(III), Cr³+ ion? Enter the electron…

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Q: 2. Rank the labelled H₂, H₂, H and Hd in order of decreasing acidity. Clearly label which hydrogen…

A: Acidity is the factor that depends on the electronegativity of nearer atom.  Lesser the pka value,…

Q: For the reaction shown, calculate how many moles of each product form when the given amount of each…

A: Here we are required to find the number of moles of each product formed during the chemical…

Q: Can the mirror image of bromochloromethane (CH2BrCl) be superimposed on the original? (chirality)

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Q: Calculate the pressure (in atm) at which the freezing temperature of water is -20°C = 253 K. H₂O(s)→…

A: To find out the pressure of at which the freezing temperature of water becomes -20°C that is equal…

Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

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Q: Methyl group V CH3 -I I N=1 1+1=2 X1H, d Ketone Ketone 1 H 31 symmetric 1H N=4 4+1=5 quintet. Methyl…

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Q: You have a solution of HIO3 with a mass percentage of 15.8% m/m and a density of 1.101 g/mL. You…

A: Given the w/w% of HIO3(aq) solution = 15.8 % w/w or m/m Given the density of the 15.8 % w/w, d =…

Q: With arrows show the direction of electrons that leads to the MOST stable structure via resonance of…

A: Here the main thing is to see the stability of the given structure.  Here we can see a negative…

Q: a. What observation would you record as evidence for reaction from Equa- tion 3.16? Na₂S (aq) + 2HCl…

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Q: 3H2(g)+N2(g)→2NH3(g)3H2(g)+N2(g)→2NH3(g) this was the answer.

A: Given ->  H2(g) + N2(g) ----> NH3(g)

Q: In this display, organic molecules that are self-illuminating are employed, doing away with the need…

A: Answer: An organic LED(Light Emitting Diode) that are self-illuminating  are employed,doing away…

Q: Water is leaking from a pipe at a rate of 0.379 mL per second. How fast is the water leaking in…

A: Given -> Rate = 0.379 ml/s

Q: OI O III IV OV XY 1 ||

A: A representation of structure of molecule in which covalent bonds are represented with one line. In…

Q: If you rotate the hydrogen atoms to a different position in a a model of C2H6 by turning about the…

A: Constitutional isomers or structural isomers are specific types of isomers that share the same…

Q: A buret is filled with a solution of hydrochloric acid made from diluting 10.0 mL of 6.00M HCl  to…

A: Given - Volume of original HCl solution = 10.0 mL             Molarity of original HCl solution =…

Q: In water molecules from ice cores, the ratios of isotopes, 2H/¹H and 180/160 depends upon…

A: On increasing temperature the 18O/16O ratio decreases and the 2H/1H ratio also decreases.

Q: Determine the number of moles of H in each sample. 35.6 mol C10H22 to mol

A: Given,  The moles of C10H22 = 35.6 mol The number of moles of H is:

Q: On the basis of the evidence developed in this experiment, would silver react with diluted sulfuric…

A: We have the results and observations for 6 different test tubes.

Q: A chemistry student is performing this lab. They weigh out 1.3741 g of Aluminum foil. If we assume…

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Q: 2. Draw and name all of the constitutional

A: Given molecules : C4H8

Q: Why are there two MHCL variables? Surely that's a typo and the second is meant to be MMgOH(2) ?

A: In this question, we have to solve the doubt regarding the preceding question.

Q: lon concentrations ION ECF K+ 4 mM Na+ 150 mM CI- 108 mm ICF 145 mM 12 mM 10 mM Eion =

A: Eion=2.303 RTZ F log ECFICF   WHEREE, R= Universal Gas constant (8.314 J/mol K) T= Human body…

Q: Balance each chemical equation. Ag2O(s)+C(s)→Ag(s)+CO(g) Express your answer as a chemical…

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Q: What is the correct name for [Fe(NH3)3(H2O)2Cl]+?

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Q: QUESTION 6 If the atmospheric pressure is 190 torr, what is the pressure of the enclosed gas in a…

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Q: 6. A first-order reaction was found to have a half-life of 8 hours at a constant temperature. What…

A: The half-life of a first-order reaction does not depend on the initial concentration of the…

Q: Why should a low flame be used in heating the metallic sodium?

A: Low flame be used in heating the metallic sodium.

Q: The unbalanced reaction for the combustion of pentane (C5H12) is: C5H12 + O2 ⟶ CO2 + H2O If the…

A: Given the unbalanced equation: C5H12 + O2 ⟶ CO2 + H2O We have to find the mass of carbon dioxide in…

Q: Does chloromethane contain a plane of symmetry? Is it a chiral?

A: First of all it needs to know about the chiral centre.  What is Chiral?  Let us see it in next…

Q: IDENTIFY by writing: A if physical change B-If chemical change 21. cloud formation 22. Combustion of…

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Q: In the dissolution process, expansion of solute particles [Select] energy in order to overcome…

A: •Here is dissolution is given. •DISSOLUTION=> It is a process by which solute dissolve in…

Q: Calculate activation energy, Ea in kJ/mole, for a reaction from the data below. R = 8.314 J/mol*K.…

A: