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A salt dissolves in water to form a green solution. A precipitation is formed when the aqueous solution is treated with buffer NH4C/NH3 and thioacetamine. When AgNO3 is added to a solution of the salt that is acidified with HNO3, a white precipitate forms. This salt reacts with concentrate H2SO4 to produce a colorless gas. What is the chemical formula for this salt?
Water is composed of 11.2% hydrogen and 88.8% oxygen. What mass of water contains 16.0g of hydrogen?
What is the desity of Osmium if 50.6 gram occupy 2.23 ml. What is the volume of the same mass of Aluminum if the density if 2.70grams/cm3
If water had not been added to your initial product, what error in the percentage magnesium determined would have resulted(that is if the part of the product has been magnesium nitride)? Explain.
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
A 4.20 g nugget of pure gold absorbed 290 J of heat. What was the final temperature of the gold if the initial temperature was 25.0°C? The specific heat of gold is 0.129 J/(g·°C).
Define buffer capacity and explain why the buffer capacity reaches a maximum when pH=pKa
What is the volume of dry gas at STP of a gas collected over water that has a volume of 596 mL at 40 C and pressure of 101KPa
determine the empirical and molecular formulas of a hydrocarbon which has a molecular weight of 84 mass unit which contains 85.7% carbon.
What is the minimum number of conversions that need to be done across a peak to achieve a reproducibility (relative standard deviation) of less than 1% for repeated measurements of the same peak
Draw the enantiomer of proline which would give rise to the absolute stereochemistry and draw a proposed catalytic cycle for the transformation and how does the catalyst activate the substrate
What is the yield of ATP when Fructose-1,6-bisphosphate is completely oxidized to CO2 in mammalian cell? Assume that glycolysis, TCA, and oxidative phosphorylation are fully active.
If the same amount of sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide were combined , but the solvent was used to afford a homogenous reaction mixture
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