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The reaction of HNO3 with X2CO3 produces CO2, water, and XNO3. a. Write a balanced molecular reaction for this process.
b. If 17.4 mL of 0.10 M HNO3 was required to "neutralize" a 0.12 g sample of X2CO3, how many moles of HNO3 is this?
c. Based on your balanced equation, how many moles of X2CO3 must have reacted with the moles of HNO3 in (b)?
d. Use the sample mass and moles in (c) to calculate an approximate molar mass for X2CO3.
A. Use the dipole moments of HF and HCl ( HF= 1.08 D, HCl = 1.82) together with the percent ionic character of each bond ( HF= 20% ionic, HCl= 45% ionic) to estimate the bond length in each molecule.
Write complete and balanced net ionic equations for the reaction that occurs between the following pairs of reagents. If no reaction occurs, so state.
One constitutional isomer of C2H4O2 has a pka of 40 while another has a pka of 5. Show lewis structures for each isomer and assign correct pka while succinctly explaining why the disparity in pka values.
a tank contains helium at 490 mmHg, nitrogen gas at 0.750 atm, and neon at 520 torr. what is the total pressure in atm?
If a student performs an end other mic reaction in a calorimeter, explain how does the calculated value of delta H differ from the actual value if the heat exchanged with the calorimeter isn't taken into account
A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in the flask is read to be 126.4 ml. The mass of the water, flask, and metal is 268.5 g. If the mass of the flask is 139.3 g and the density of water ..
When you go on the protein databank and look at the Ramachandran plot, it gives you 4 plots (general case, glycine, proline, and pre-proline).
The vapor pressure of water above this solution is found to be 0.3626 atm at 348.0 K. The vapor pressure of pure water at temperature is 0.3804 atm. Determine the value of the van't Hoff factor i for magnesium chloride in this solution
The tosylate of (2S,3R)-4-methyl-3-phenylpentan-2-ol undergoes an E2 elimination on treatment with sodium ethoxide. Draw the structure of the alkene that is produced.
What is the half-life of bismuth-210 if 11.7 days are required for the activity of a sample of bismuth-210 to fall to 19.8 percent of its original value
Identify all of the substances that are used or produced in this experiment A5. Distinguish between elements and compounds.
What is the final temperature, (in oC), after a 13.5 gram piece of ice at 0oC is placed into a styrofoam cup with 124.0 grams of water initially at 76.5oC? Assume no loss or gain of heat from the surroundings.
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