A 135.0 L weather balloon filled with 6.40 mol of helium has a small leak. If the helium leaks at a rate of 10.0 mmol/hr, what is the volume of the balloon after 69.0 hours? L

Does the spectrum math the structure below?

Valine is an essential amino acid. What peaks listed below would be expected in the IR spectrum of valine? Select the best answer from the choices below (not all peaks in the IR spectrum are listed). NH₂ OH Peak 1- just over 3000 cm -1 Peak 2 - just under 3000 cm O Peaks 1 and 2 O Peaks 1, 2 and 3 Peaks 1 and 3 Peaks 2 and 3 -1 Peak 3 Around 1750 cm -1

What IR stretch would most readily distinguish carnauba wax from paraffin wax? 3rbt 910 Answer:

Q9.2. What is the correct name if the compound that is shown below in the pink box? There is only one right answer. ola d) 3E,6E-butyl-6-fluoro-7-methylocta-3,6-dienoate b) 3E,6Z-pentyl-6-fluoro-7-methylocta-3,6-dienoate c) 2E,5Z-butyl-6-fluoro-7-methylocta-2,5-dienoate d) 2E,5E-pentyl-6-fluoro-7-methylocta-2,5-dienoate

Valine is an essential amino acid. What peaks listed below would be expected in the IR spectrum of valine? Select the best answer from the choices below (not all peaks in the IR spectrum are listed). NH₂ OH Peaki- just over 3000 cm Peak: - just under 1000 cm Peak: Around so cm O Peaks and 2 O Peaks 1, 2 and 3 O Peaks 2 and 3 Peaks and

Between: a, b, c: which has the largest λmax value?

can you analyse this IR spectrum?

What is the chemical shift in ppm of a carbon that resonates at 1325 Hz on a 250 MHz instrument (Answer is not 5.3 ppm)?

Determine the R/S orientation of the indicated chiral center(s) in the following molecules. If there is only one chiral center in the molecule, choose (none). CH3 H3C- CH3 Molecule #1 ( a-thujene ): Center a: Center b: CH3 H3C- CH3 Molecule #2 ( B-thujene ): Center a: Center b: Submit Answer Try Another Version 5 item attempts remaining