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What is the mass of a glucose solution that fills a 0.500 intravenous bottle if the density of the glucose solution is 1.15 ?
The half-life of a certain radioactive element is 1250 years. What percent of the atoms remain after 7500 years?
If ocean consisted of 3.5% salt by mass,what would be the freezing point of the ocean? Assume the Density of H2O= 1.00g/ml and that the whole ocean would freeze at the same temperature everywhere.
If 49.0g of H3PO4 is reacted with excess KOH, determine the percent yield of K3PO4, if you isolate 49.0g of K3PO3.
How much ice in grams would have to melt to lower the temperature of 51.0 g of water from 65.0*C to 0*C
2 NaClO3-> 2 NaCl + 3 O2 Determine the number of moles of O2 produced by the decomposition of 213 g of NaClO3.
A backpacker wants to carry enough fuel to heat 2.2 kg of water from 30 C degree to 100.0 C degree. If the fuel he carries produces 36 kJ of heat per gram when it burns
A 86 gram solution of silver nitrate contains 14 grams of AgNO3. What is the percent by mass of silver nitrate in this solution.
A solution is prepared by adding 0.500 g of solid NaCl to 50.0 mL of 0.100 M {CaCl_2}. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.
What volume, in liters, of O2 at 35°C and 1.19 atm can be produced from the decomposition of 10.0 g KNO3? 2 KNO3(s) → 2 KNO2(s) + O2(g)
Define and describe teh properties of Bronsed conjugate acid base pairs and how they relate to the pH scale and calculate the pH or pOH values for a given ion concentration.
Why do primary alkyl halides typically undergo SN2 substitution reactions more rapidly than do secondary or tertiary alkyl halides?
The volume of potassium permanganate required to titrate 10 mL of the new hydrogen peroxide (mL):20mL (c) Calculate the concentration of H2O2 from the volume of KMnO4 used and the stoichiometry of the reaction (MW of H2O2 is 34.01).
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