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What is the molecular formula of each compound? (Type your answer using the format C6H12O6 for C6H12O6 and use the same order of the elements as in the empirical formulas.)
(a) empirical formula NO2 ( = 92.02 g/mol)
(b) empirical formula C3H6O2 ( = 74.08 g/mol)
(c) empirical formula P2O3 ( = 219.88 g/mol)
(d) empirical formula CH2Cl ( = 98.95 g/mol)
Consider the 1H19F molecule. The bond length of 1H19F is 91.7 pm. The wavenumber of light associated with a transition from the ground vibrational state to the first excited state is 1159.18 cm^-1.
a certain brand of antacid chewing gum was sent to the lab for testing and it was found to have 15 by mass of
After performinc a TLC on an unknown material, using dichloromethane as a developing solvent, you visualize one spot having an Rf of 0.05. In order to obtain information that is more useful would you use hexane or ethyl
according to equation, how many grams of Zn will remain after the reaction is complete? Equation [5] = CuSO4 (aq) + Zn (s) ----> ZnSO4 (aq) + Cu (s)
A year later a single large crystal of mass 50 g is at the bottom of the flask. Explain how this experiment provides evidence for a dynamic equilibrium between the saturated solution and the undissolved solute.
calculate the activation energy for diffusion for a system where the diffusion coefficient doubles its value from 700k to 1200k. R=8.314J/molk.
Choose the more metallic element from each of the following pairs: Sr or Sb, Zn or Hg, As or S.
50.00ml of BiO3- is titrated with 26.43ml 0.02982M Fe2+. What is the molar concentration of BiO3-? How many mg of NaBiO3 were in the 50.00ml sample? [BiO3-] = _______________ M mNaBiO3 = _______________ mg
Draw the structure of each product obtained when the given compound is treated with the reagent specified below: a. CH3C(=O)CH2CH2C(=O)OCH3 (1,4-dioxacyclohexane compund) + HBR (reagent)
what volume does .103 mol of N2 gas occupy at a temperature of 27 degrees Celsius and a pressure of 784 mm Hg?
Calcium hydride (CaH_2) reacts with water to form hydrogen gas. How many grams of CaH_2 are needed to generate 55.0 L of H_2 gas at a pressure of 0.995 atm and a temperature of 32 degrees Celsius
Determine the fraction of the energy radiated by the sun in the visible region of the spectrum (350 nm to 700 nm). (Assume the sun's surface temperature is 5800 K.)
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