I believe the correct answer from the choices listed above is option A. Multiplying 42 by 2/3, or 0.667, would be most useful for c<span>alculating the moles of O2 needed to produce 42 moles of CO2. Hope this answers the question.</span>
n=PV/RT
convert:
740 torr to atm (1 atm=760 torr)
50 degree celsius to kelvin ( degree celsus +273= kelvin)
n=(0.9737 atm)(12.5L)÷(0.08206 L atm mol ⁻¹k⁻¹) (323 K)
n=0.4592 mols×22.4 L/1 mol. (22.4 L STP= 1 mol)
=10.286 L at STP
it could be this
If this molecule is one half of a buffer, then the formula of the second half of the buffer is M2CrO4 where M is a univalent metal.
<h3>What is a strong acid?</h3>
A weak acid is one that is able to ionize completely in solution. The acid called chromic acid H2CrO4 is not able to ionize completely in solution.
We know that a buffer is composed of a weak acid and its salt or a weak base and its salt hence if the acid H2CrO4 is present in a buffer then the other half must be salt of the acid.
If this molecule is one half of a buffer, then the formula of the second half of the buffer is M2CrO4 where M is a univalent metal.
Learn more about buffer:brainly.com/question/22821585
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Answer:
B. wave 1 has a larger wavelength than wave 2
