Lakydo Wepson

Use the diagram provide to answer the question a). Which of the two liquids is volatile

2 years ago

Which of the two (hexane or heptane) liquids is volatile in pressure /composition diagram.

2 years ago

At 85 degrees celsius and 760 torr, what are the amount of substance in the liquid and vapour phase when heptane is equals to 0.40?

2 years ago

Preparation of magnesium hydroxide Magnesium hydroxide in a white insoluble solid that is used as an antacid to relieve upset stomach. Obtain as solid A).Method B).Balanced equation C).Net ionic equation D)Observation

2 years ago

A voltaic cell is constructed using Al and Al3+ in one half- cell and Ag with Ag+ in the other half-cell. A).Write the half-cell reaction that will occur at each electrode. B).Write the net cell reaction and workout the cell potential C). Which metals is...

2 years ago

Calculate the standard Gibbs energy of the given reaction at 25°C CO(g) + half CO +CO2

2 years ago

The vapour pressure of dichloromethane at 24.1°C is 53.3 kPa and it's enthalpy of vaporization is 28.7 kJ/mol.Estimate the temperature at which its vapour press is 70.0 kPa.[hint: P=P*e^-*]

2 years ago

Write the formula of the following complexes. a).Pentaamminenitritochromium(III) ion b).Tris (ethylene-1,2-diamine) cobalt (III) bromide c). Hexacabonylchromium (0)

2 years ago

Give the coordination number and oxidation state of the central metal ion in each of coordination compound. a.[CoCl4(NH3)2]^- b.Pt(en)2Cl2]^2+ c.K[Co(H2O)2(C2O4)2] d.[Ru(H2O)2(NH3)2Cl2]Br

2 years ago

In which compound does Cr exhibit greater non metallic behavior, CrFe2 or CrF6? Explain?

2 years ago

Write the electron configuration for Sm (Z=62) and how many upaired electrons

2 years ago

Calculate the oxidation state of the central ion in each of coordinate compound. a).[Pt(en)2Cl2]2+ b).Mg3[ CrCl5Br]2 c). K[Co(H2O)2(C2O4)2] d). [Ru(H2O)2(NH3)2Cl2]Br

2 years ago

Give an example of AI enhancing teaching practices

2 years ago

How to improve standard base curriculum in senior high school chemistry and teachers guide.

2 years ago

1.What are some benefits of professional code of ethics in commitment to colleges? What are some of adverse effectively if not implementec/absent? Explain in 5 to 6 sentence only.

2 years ago

Which of the two liquids is volatile.Hexane or heptane in pressure/temperature composition diagrams.

2 years ago

For a solution containing 1mole each of hexane and heptane, estimate the vapour pressure in torr at 70°C when vaporization on reduction of external pressure just begins.

2 years ago

What is the vapour pressure of the solution at 70 degrees celsius when just one drop of the liquid remains

2 years ago

Which of the two (hexane or heptane) liquids is volatile in pressure /temperature composition diagram.

2 years ago

For a solution containing 1 mole each of hexane and heptane (a),estimate the vapour pressure in torr at 70 degrees celsius when vaporization on reduction just begins...(b).what is the vapour pressure of the solution at 70 degrees celsius when one drop of...

2 years ago

When Mg(NO3)2 reacts with NaOH and forms Mg(OH)2 A) write balanced equation B).Net ionic equation

2 years ago

When CaCl2 reacts with Na2CO3 and forms CaCO3 A).Write the balanced equation and net ionic equation

2 years ago

Formula for barium sulphate

2 years ago

Preparation of calcium sulphate Calcium sulphate is slightly soluble solid that is used to make plaster.Prepare the solid.Mix solution well-the reaction may be slow to occur A).method B).Balanced equation C).Net ionic equation D).Observation

2 years ago

What properties of calcium sulphate make it suitable for the use in plaster.

2 years ago

CaCl2 reacts with H2SO4 and forms CaSO4 Write the balanced equation and Net ionic equation

2 years ago

Preparation of barium sulphate Barium sulphate is an insoluble solid used as a paint pigment and in the "barium meal" taken for certain types of X-ray photography.Prepare the solid A).Method B).Balanced equation C).Net ionic equation D). Observation

2 years ago

Magnesium sulphate (Epsour salt) is soluble solid that is used as an mild laxative in causing movement of bowels in human.Prepare a solution of magnesium sulphate. Obtain it as a solid a). Method b).Balanced equation c).Net ionic equation b).Observation

2 years ago

Mg reacts with Mg(NO3)2 and forms MgSO4 Balanced equation Net ionic equation

2 years ago

Calculate the standard Gibbs energy of the given reaction at 25 °C CO(g)+0.5 O2 =CO2

2 years ago

Calculate the standard Gibbs energy of the given reaction at 25°C CO(g) + half CO(g) =CO2

2 years ago

What do you understand by the concept of partial molar quantity in thermodynamics? Use partial molar volume as an example to explain.

2 years ago

The partial molar volume of water and enthanol in a solution with Xwater=0.45 at 25°C are 17.0 and 57.5 cm³/mole respectively.Calculate the volume change upon mixing sufficient ethanol with 3.75 moles of water to give this concentration. [P water =0.997gc...

2 years ago

The difference in chemical potential between two regions of a system is -0.82kJ/mol. By how much does the Gibbs energy change when 59 moles of substance is transferred from one region to another?

2 years ago

The difference in chemical potential between two regions of a system is -0.82kJ/mol. By how much does the Gibbs energy change when 50 moles of substance is transferred from one region to another?

2 years ago

For a mixture of two liquids A & B of differing volatility, their vapour pressure are PA and PB respectively. a). Express the total pressure P in terms of partial pressure of pure A & B, and mole fraction A,is XA b). Write an expression in terms of XA (ie...

2 years ago

Pure methylbenzene and octane have vapour pressure of 4.65*10^4 and 1.15 *10^5 respectively. a).What is the composition of liquid mixture that boils at 350K at a pressure of 1atm b). Compute the total vapour pressure resulting from boiling. c). What is th...

2 years ago

Name the following complexes using the IUPAC naming system. a.[Cu(NH3)4(H2O)2]SO4 b.[Co(NH3)5NO2]2+ c.Cu2[Fe(CN)6]

2 years ago

Name the following complexes using the IUPAC naming system. a.[Cu(NH3)4(H2O)2]SO4 b.[Co(NH3)5NO2]2+ c.[Fe(CN)6]4- c.Cu2[Fe(CN)6]

2 years ago

Name the following complexes using the IUPAC naming system. a.[Cu(NH3)4(H2O)2]SO4 b.[Co(NH3)5NO2]2+ c.[Fe(CN)6]4- d.Cu2[Fe(CN)6]

2 years ago

Write the formulae of the following complexes a.Tetraamminediaquacopper(II) sulfate b. Pentaamminenitrito-N-cobalt(III) c. Hexacyanidoferrate(II) d. Dicopper(II) hexacyanidoferrate(III)

2 years ago

Write the formulae of the following complexes a.Tetraamminediaquacopper(II) sulfate b. Pentaamminenitrito-N-cobalt(III) c. Tetra(cyano)ferrate(II) d. Dicopper(II)cynoferrate(II)

2 years ago

Give the coordination number and oxidation state of the central metal ion in each of coordination compound. a.[CoCl4(NH3)2]^- b.Pt(en)2Cl2]^2+ c.Mg3[CrCl5Br]2 d.K[Co(H2O)2(C2O4)2] e.[Ru(H2O)2(NH3)2Cl2]Br

2 years ago

Which oxide, CrO3 or CrO, is more basic in water? Why

2 years ago

How many upaired electrons are in SM(Z=62).

2 years ago

Give an example of AI enhancing teaching practices.Provide citation also

2 years ago

Write me a eassy topic base on AI enhancing teaching practices. Also provide citation in paragraphs.

2 years ago

Critical evalution of standard base curriculum in senior high school chemistry and teachers guide for Chemistry unit content.

2 years ago

Write one paragraph conclusion base on these four professional code of ethics; commitment to students, commitment to the profession,commitment by the community and commitment to the colleagues. The conclusion must be suggestion/recommendation and the main...

2 years ago

A.Reaction of iron with acids 1.Drop some iron filling into a test tube of dilute hydrochloric acid. Describe what happens. I). When reaction stops, note the color of the solution. ii). Have Fe3+ or Fe2+ formed iii). Write an equation for this reaction. 2...

2 years ago