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Question- Part a) Assuming volumes are additive, how much water (in mL) should be added to 12.4 mL of a 1.68 M solution of hydrochloric acid (HCl) to produce a 0.100 M solution?
Part b) Assuming volumes are additive, how much water (in mL) should be added to 18.9 mL of a 2.08 M solution of sodium hydroxide (NaOH) to produce a 0.250 M solution?
Compute the values
assume complete dissociation of the compound.what will be the boiling point of a solution of 4 moles of potassium
Consider a binary liquid mixture A and B, where A is volatile and B is nonvolatile. The composition of the solution in terms of mole fraction is xA = 0.045 and xB = 0.955
the energy from radiation can be used to cause the rupture of chemical bonds. a minimum energy of 941 is required to
Spectroscopists have observed He+ in the outerspace. This ion is a one-electron species lik ea neutral hydrogenatom. Calculate the energy emitted for the transition from the n =5 to the n = 3 state in this ion using the equation:
What quantity of useful work can be obtained when Mg is added directly to the beaker of HCl. How can you harness this reaction to do useful work
If the outermost electron in a potassium atom were excited to a 4d-orbital and then fell to the same orbitals, describe qualitatively how the emission spectrum would differ from that of hydrogen (do not do any calculations). Explain your answer.
A Newman projection is given for six conformations about the C2-C3 bond of isopentane. On the curve of potential energy versus angle of internal rotation for isopentane, label each energy maximum
Gold can be hammered into extremely thin sheets called gold leaf. If a 202-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft multiplied by 1.0 ft, what is the average thickness of the sheet in meters?
A 26.1 g sample of pure iron at 77°C is dropped into 93 g of water at 17°C. What is the final temperature of the water-iron mixture.
Reaction between NF3, F2, and SbF3 at 200 degrees C and 100 atm pressure gives the ionic compound NF4SbF6: Nf3(g) + 2F2(g) + SbF3(g) -> NF4SbF6 (s)
Determine each of the following for a 0.500 M HBr solution. 1) Express your answer using three significant figures [H3O+]= M 2) Express your answer using three decimal places pH= 3)the balanced equation when reacted with LiOH.
Draw complete Lewis structure for following condensed structural formula. (CH3CH2)CO
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