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Problem- A certain isotope has a specific activity of 7.29e-4 Ci/g. How many alpha particles will a 75.0 mg sample emit in one hour?
Please provide the answer of the given question on urgent basis
A. A student places 2.10 L of water in his dormitory room, which has the volume of 4.06 x10^4 L. He seals the room and waits for the water to evaporate. At 25 deg C, the density of water is 0.997 g/mL
Order the following compounds according to their expected lattice energies: AlBr^3, MgBr^2, LiBr, CaO
Question- Part a) how can atp be synthesized from phosphoenolpyruvate and adp, but generally not from glycerol-3-phosphate or glucose-6-phosphate and ADP
what is the balanced equation for copper ii hydroxide acetic acid hc2h3o2? and what is its reaction single or double
If a typical antacid tablet contains 2.0 g of sodium hydrogen carbonate, how many moles of carbon dioxide should one tablet yield?
What observed rotation is expected when 1.26M solution of (R)-2-butanol is mixed with an equal volume of a 0.630 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sampling container that is 1 dm long
A sample of gas occupies 1.40*10^3 ml at 25 degrees C and 760 mmHg. What volume will it occupy at the same temperature and 380 mmHg
A mixture is made by combining 1.39 lb of salt and 5.07 lb of water. What is the percentage of salt (by mass) in this mixture?
Describe how you would make 1 L of buffer with a pH of 5.00 using only pure materials and deionized water so that the total concentration of the conjugate acid/base pair is 0.200 M. Give the amounts of the pure materials in grams if they are solid..
In a 4.09 liter container at 25C are placed 1.23 moles of O2 gas and 3.20 moles of solid C(graphite). If the carbon and oxygen react completely to form CO(g) what will be the final pressure in the container at 25C
Compare the molar solubility of AgOH in pure water, with that in a solution buffered at pH 7.00. Note the difference between the two cases: when AgOH is dissolved in pure water, the pH does not remain at 7. The value of Ksp for AgOH is 1.5x10-8 at..
A student carry out an experiment in which (II) chloride Hexahydrate reacts with ammonia to produce hexamminenickle (II) Chloride (formula = Ni(NH3)6Cl2) as well as water if 6.024 grams of hexamminenicle (II) Chloride are produced, what is the per..
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