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Svetllana [295]
2 years ago
14

A student proposes creating a buffer by dissolving 0.010mol of NaClO4(s) in 100.mL of 0.100MHClO4. Explain why the resulting sol

ution would not be a buffer.
Chemistry
1 answer:
Ivenika [448]2 years ago
5 0

Answer:

Given, 25.0 mL of 0.200(M) HClO4 is titrated with 0.200(M) NaOH solution . We know, HClO4 is a strong acid , which is completely dissociated into H3O+ and ClO4- ions in aqeous solution.

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Activation energy is needed so reactants can move together, overcome forces of repulsion, and to begin breaking bonds.

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15. Which sample of argon gas has the same number of atoms as a 100.-milliliter sample of helium gas at 1.0 atm and 300. K? A) 5
OLga [1]

The sample of argon gas that has the same number of atoms as a 100 milliliter sample of helium gas at 1.0 atm and 300 is 100. mL at 1.0 atm and 300. K

The correct option is D.

<h3>What is the number of moles of gases in the given samples?</h3>

The number of moles of gases in each of the given samples of gas is found below using the ideal gas equation.

The ideal gas equation is: PV/RT = n

where;

  • P is pressure
  • V is volume
  • n is number of moles of gas
  • T is temperature of gas
  • R is molar gas constant = 0.082 atm.L/mol/K

Moles of gas in the given helium gas sample:

P = 1.0 atm, V = 100 mL or 0.1 L, T = 300 K

n =  1 * 0.1 / 0.082 * 300

n = 0.00406 moles

For the argon gas sample:

A. n =  1 * 0.05 / 0.082 * 300

n = 0.00203 moles

B. n =  0.5 * 0.05 / 0.082 * 300

n = 0.00102 moles

C. n =  0.5 * 0.1 / 0.082 * 300

n = 0.00203 moles

D. n =  1 * 0.1 / 0.082 * 300

n = 0.00406 moles

Learn more about ideal gas equation at: brainly.com/question/24236411

#SPJ1

8 0
1 year ago
12. Your client is prescribed Lipitor for high cholesterol, but has trouble swallowing a whole pill. How do you know Lipitor is
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The answer is C

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This is the answer because it is the only way that it is okay to split in half.

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