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Calculate the pH of a strong base solution formed by mixing 16.2 mL of 8.93e-05 M LiOH with 23.6 mL of 9.10e-05 M Sr(OH)2.
You are to design a tungsten filament light bulb that has a power of 60W when it is connected to 120V at which condition its temperature is expected to be 1020C. Calculate the length of filament tha
A certain ionic lattice consists of a ccp sublattice of cations. The anions occupy all of the tetrahedral sites. What is the empirical formula of the compound
Squaw Valley ski area in California claims that its lifts can move 48300 people per hour. estimate the maximum total power needed
In the work-up procedure the reaction mixture is neutralized with NaOH (aq) and then extracted twice with diethyl ether. Explain why this is done. This was for an OChem Menthone lab.
An electric vehicle starts from rest and accelerates at a rate a1 in a straight line until reaches a speed of v. How far does the vehicle travel from start to stop
What the effect does the bulkiness of the base have on the product composition in the E2 dehydrobromination of 2-bromoheptane?
Be specific of what type of compound butane is (ionic or covalent). If it isionic, mention which is the cation and which is the anion. Discuss how the ions formed
Calculate the energy difference (E) for the transition from n = 1 to n = 4 energy levels of hydrogen per 1 mol of H atoms.
If the pH of a 1.00-in. rainfall over 1500 miles2 is 3.80, how many kilograms of sulfuric acid, H2SO4, are present,assuming that it is the only acid contributing to the pH
The triceps muscle in the back of the upper arm extends the forearm. What is the moment of inertia of the boxer
A gyroscope slows from an initial rate of 32.0 rad/s at a rate of . How many revolutions does it make before stopping
Write an equation showing the reaction of methanol (CH3OH) with HClO 4 as a Brønsted-Lowry acid. Answer: CH3OH + HClO4 -> CH3OH2+ + ClO4- Why is it ClO4-?
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.69 km. What is the distance they travel
For the reaction 4NH3(g)+ 5 O2(g)= 4NO(g)+ 6H2O(l) a.) Use the following standard enthalpies of formation to calculate the enthalpy change. NH3(g)= -46.11 kJ/mol O2(g)= 0 kJ/mol NO(g)= 90.25 kJ/mol
A series RLC circuit has a peak current of 4A with a frequency of 32kHz, determine the average power of the circuit over one cycle
acA block lies on a plane which is inclined at 22 deg to thehorizontal. The coefficient of kinetic friction between blockand plane is %u03BCk = 0.17. compute the acceleration of the block
Need explanation: In ionizing bases, the reaction of sodium hydroxide in water is Ca(OH)2 (s) = Ca2+(aq)+2OH-(aq) First of all, how do I know that Ca(OH)2 is sodium hydroxide
How much thermal energy is evolved by a reaction in a calorimeter in which the temperature of the calorimeter and water increases from 19.50 degrees C to 38.83 degrees C. The calorimeter has a heat
Having trouble with a couple of study guide questions for Chemistry. Hoping someone can assist: PART 1: Calculate the pH of a buffer solution that is 0.250 M in HCN
For the reaction,: Ca(OH)2(s)+ CO2(g)= CaCO3(s)+ H2O(g) (a) Use the following standard enthalpies of formation to calculate the enthalpy change.
What are the difference between gas chromatography, column chromatography, and thin layer chromatography
How is HCl a base if it has no OH ions in is formula to omit when dissolved? Where does it's O come from
The heat of formation of Al2O3(s) is change Hf= -1669kJ/ /mol. a.) Calculate the heat evolved when 3.47 g of Al burns in oxygen. b.) Find the mass in grams of Al that burns when 1039 kJ are evolved.
After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45 oC. W