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John, a 28-year old first time father, was watching his 4-month old baby for the weekend while his wife is away at a sales meeting. Things were going well. He had run out of breast-milk to give the baby, so he went to the store and get some formula. The baby responded well to the formula - consuming an entire bottle in one feeding. In an hour or so he noticed a smell and figured it was time to change the baby's diaper. To John's horror, the baby had a very wet diaper (to include diarrhea) and a bright red rash all over her butt. After he cleaned up the mess, he looked around the baby's changing table for remedies for this horrible rash, but he could not find anything. As he was about to panic, he remembered some useful acid-base chemistry from a class years ago. He opened the refrigerator and found something that would help alleviate the rash.
1. What could have John used to help with the diaper rash? From a chemical standpoint, how does it work?
2. What is the acid-base chemistry of this case?
3. Write the balanced chemical equation(s) that represent this chemistry
Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 Angstrom. How many moles of gold fit in a sheet with a length of 51.6 nm, a width of 24.3 nm, and a thickness of 16.7 nm?
Yet a generic figure is 1kB per particle. Assuming this figure is exact, what is the molar enthalpy of melting of Argon (in kJ/mol), whose melting temperature is 83.85K?
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A 8.0 L sample at 25 °C and 1.00 atm of pressure contains 0.5 moles of a gas. If an additional 0.75 moles of gas at the same pressure and temperature are added, what is the final total volume of the gas?
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Use the molarity of the EDTA solution and the average volume of EDTA added to calculate the average number of moles of EDTA required for the titration.
A 49g piece of ice at 0 degrees C is added to a sample of water at 9 degrees C. All of the ice melts and the temperature of the water decreases to 0 degrees C.
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What is the theoretical yield and limiting regent if 2.6 g of benzaldehyde is reacted with 0.7 g of acetone to produce dibenzalacetone
what is the theoretical yield of PbI2 in grams? g) if the student obtained .583 grams of PbI2 product after collecting it by filtration and drying it, what was the percent yield of PbI2 obtained?
Explain why it is important to use crucible tongs when you transfer the heated crucible
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