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Question- A certain hybrid has a mileage rating of 49 miles per gallon. if the car makes a trip of 263 miles, how many gallons of gasoline will be used? Show work please, it would be appreciated
I require skilled aid to respond the specified problem
consider a nonmetal atom which we will give the symbol x. the element x is a gas at room temperature and can easily
Why do humans sweat and dogs pant? Explain the purpose and the reason it is effective. Why is water consiered the universal solvent
The burning of 80.3 g of SiH4 at constant pressure gives off 3790 kJ of heat. Calculate ?H for this reaction.
How many grams of ethyl alcohol will result. How many grams of water are needed to react with 0.361 mol of ethylene. How many grams of ethyl alcohol will result
The mass of calcium fluoride that results from the reaction of 3.00 grams of calcium and 2.00 grams of fluorine is 4.02 grams. What is the percent yield?
An aqueous CaCl2 solution has a vapor pressure of 81.6 mmHg at 50 °C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent?
Aerosol cans have a label that warns the user not to use them above a certain temperature and not to dispose of them by incineration. Even an empty can contains residual gaseous propellant.
Compare the IR spectra for R and S carvone. Explain all differences. Define what does IR signals show in a molecule
State the mass balance and charge balance equations for a solution containing .200F La2 (SO3)3 and .100 F Na2S (pka 1 and pk2 for H2SO3 are 1.852 as well as 7.157 respectively and 7.02 and 13.50 for H2S respectively)
Write a net ionic equation to explain why the pH didn't go up to about 10, as it would have if that amount of NaOH were added to distilled water or to 20mL 0.00040 M HCl, which also would have a pH of 3.40
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.154 M in sodium chloride and 0.030 M in magnesium sulfate. Assume complete dissociation for electrolytes.
For the acid-base titration combination of NaOH with 1.5 mol HCl, find the number of moles of NaOH that would be the chemically equivalent amount of HCl. Answer in units of mol.
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