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Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric acid: Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What is the volume, in liters, of H2 gas produced at 26°C and 825mmHg from the reaction of 35.0g of Mg?
Assume further that as the normal fruit flies die off quickly, a population of the resistant flies increases geometrically (that is, 1, 2, 4, 8 ...) If a new generation occurs every 62 days, in how many days will the fruit fly population be restor..
Compute the Ca+2 concentrations in a saturated solution of CaF2(s). The solution as well contains .0095M of Mg(NO3)2. Ksp for CaF2 = (3.9 x 10^-11)
Dopa (Levodopa) is an oral medication used to treat Parkinson\'s disease, the symptoms of which result from a lack of dopamine in the brain. L-Dopa relies on L-type, or leucine-preferring, transport proteins to cross the blood-brain barrier
Determine What is the ? Ssys for the process?(if it is given the specific heat capacity for ethanol is 2.42 J/g K.) express your answer in units of J/K
03 mol sample of NH4NO3 is placed in a 1L evacuated flask, which is then sealed and heated. The NH4NO3 decomposes completely accodring to the balanced equation: NH4NO3-->N20+2H20 The total pressure in the flask measured at 400K is closest to which ..
a large oil spill that resulted from the 1989 shipwreck of the exxon valdez cause considerable damage to alaska's wildlife. do you think a comparable spill of a water-insoluble liquid that has a density of 1.20 g/mL would have been as harmful to w..
Two organic species are produced when 1,1-dimethylethylmagnesium bromide reacts with 1-pentyne (a) Draw the skeletal structure of the new Grignard produced
To identify a diatomic gas (x2), a researcher carried out the following experiment: She weighed an empty 4.8- bulb, then filled it with the gas at 1.40atm and 20.0 degC and weighed it again.
You have a solution made by dissolving 1.5230g of solid Na2(C2O4) and diluting to a volume of 250.00mL: How many moles of sodium ions are contained in this solution
What is the the mole fraction of a solution prepared by dissolving 0.315 g of cholesterol
a radio active atom in a beam produced by an accelerator has a speed .78c relative to the laboratory. the atom decays
An unknown solid compound is analyzed in the lab to determine its chemical formula. The following observations are recorded. When a small quantity of the solid is heated in the flame of a Bunsen burner, a bright orange flame is observed.
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