09/09/24

Resonance structures for given molecules
What are the possible resonance structures for each of the 3 molecules given in the image attached;https://ibb.co/HGbx41K
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07/08/24

A Riddle: What can you swallow and it can swallow?
This is a universal substance that everybody drinks.
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04/24/24

Calculate [FeNCS2+]equil, [Fe3+] initial, [SCN-]initial, [Fe3+]equil, [SCN-]equil, and Kc
Standard solution A (~2.0*10^-5) 12.50 mL of 0.200 M Fe(NO3)3 2.50 mL of 2.00e-4 M KSCN 10.00 mL of 0.500 M HNO3 Absorbance was 0.02 Equilibrium solution 1 10.00 mL of 2.00e-3 M... more
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02/28/24

Chemistry Question
What is the concentration of an HF solution if its pH is 1.7? a. 0.57 b. 0.027 C. 0.020 d. 7.2 x 10^-4 e. 5.0 x 10^-13
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02/28/24

Calculate the enthalpy for the following reaction (using the Standard Enthalpy of Formation Table): 2F2(g) + 2H2O(l) --- 4HF(g) + O2(g)
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02/27/24

Determine the energy in an x-ray photon with a wavelength of 75. pm. (h=6.626x10-34J*s)

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02/27/24

determine the pH of the solution.
A solution is made by dissolving 15.7 g of CH₃NH₃NO₃ in 500.0 mL of water. Using Ka(CH₃NH₃⁺) = 2.3 × 10⁻¹¹, determine the pH of the solution.
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02/24/15

The mass of the heavier block is 24 kg and the mass of the lighter blocks is....Plz Help
The mass of the heavier block is 24 kg and the mass of the lighter blocks is 12 kg and the magnitude of the force of the connecting string on the smaller block is 16 N. Assume: g= 9.8 m/s2 and μ=... more
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