What is the combination of the safe

Assignment Help Chemistry
Reference no: EM13170159

captain kirk of the starship enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship. the combination is the pH of solution A, descibed below, followed by the pH of solution C. (example: if the pH of solution A is 3.47 and that of solution C is 8.15, then the combination to the safe is 3-47-8-15.) the chemist must determine the combination using only the information below (all solutions are at 25.0 Celcius):

solution A is 50mL of a 0.100M solution of the weak monoprotic acid HX

solution B is a 0.0500M solution of the salt NaX. it has a pH of 10.02

solution C is made by adding 15.0mL of 0.250M KOH to solution A

what is the combination of the safe?

Reference no: EM13170159

Questions Cloud

Explain rh to be paramagnetic or diamagnetic : what the final orbital should be ? would you expect Rh to be paramagnetic or diamagnetic? Explain your answer to each question? please explain in details so its easy for me to understand this.
What is the atomic mass of the metal : A 100.0 g sample of a metal M is burned in air to produce 103.7 g of its oxide with the formula M2O. What is the atomic mass of the metal?
Black slaves or white abolitionists : By creating awareness of oppression and arousing sympathy of supporters, the arts can be a form of protest. Identify and describe an example of how either black slaves or white abolitionists used the arts as a form of protest against slavery.
Describe iasb conceptual frameworks perspective of users : Which qualitative characteristics of financial reporting, as per the IASB Conceptual Framework, appear not to be satisfied by current reporting practices as per IFRS.
What is the combination of the safe : captain kirk of the starship enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship.
What is the atomic mass of the metal : A 100.0 g sample of a metal M is burned in air to produce 103.7 g of its oxide with the formula M2O. What is the atomic mass of the metal?
Is the system at equilibrium : at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
Find the temperature capable of expanding : Find the temperature capable of expanding 2.500 liters of chlorine at 18.00°C and 0.9000 atm to 5.200 liters. No change in pressure took place.
Movement of mozart's symphony : The first movement of Mozart's Symphony No. 40 in G Minor is based on variations on a three-note motif. Explain why you think this Classical music form may be satisfying for both 18th century and contemporary listeners - and whether it was enjoyable ..

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the mass percent of methanol, ethanol and mtbe

Calculate the mass percent of methanol, ethanol, and MTBE, that must be present in gasoline to yield a mixture of 1.8% oxygen by weight.

  Calculating the abundance

Zinc has two isotopes. Zn-64 has an atomic mass of 63.9292amu and Zn-72 has an atomic mass of 71.9278amu. Its average atomic mass is 65.38amu. Calculate the abundance, in percent, of Zn-64.

  How many milliliters of silver nitrate do you need to use

suppose you wish to make a .879 L of .250 M silver nitrate by diluting a stool solution of .675 M silver nitrate. How many milliliters of silver nitrate do you need to use.

  What is the volume occupied by 0.265 mol of helium gas

What is the volume occupied by 0.265 mol of helium gas at a pressure of 1.32 atm and a temperature of 302 K.

  State hcooh and hcoona

HCOOH and HCOONa How many milliliters of HCOOH and HCOONa would you use to make approximately a liter of the buffer?

  What is the equilibrium concentration of the red iron iii

if the reaction between iron III ion and thiocyanate ion yielded an equilibrium concentration of .15M for each of these ions, what is the equilibrium concentration of the red iron III-thiocyanate complex

  Calculate hydrogen ion concentration in anode compartment

Consider the following cell: Pt|H2(g, 0.645 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.20 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V.

  Compute the number of mmoles of primary standard grades

Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.

  What is the distance between the ag and cl atoms

AgCl has a 78.1% ionic character and a diplole moment of 11.5D. what is the distance between the Ag and Cl atoms?

  Draw the molecule by placing atoms on the grid

Draw the molecule by placing atoms on the grid and connecting them with bonds. Include lone pairs of electrons and hydrogen atoms.

  How many molecules of co are present

the concentration of carbon monoxide in a sample of air is 9.2 ppm. there are how many molecules of CO are in 1 liter of 755 torr and 23 degrees celcius

  Calculate the molar solubility of this compound

The Ksp for PbBr2 = 8.9 x 10^-6. Calculate the molar solubility of this compound on a .20M Pb(NO3)2.

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