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1) how many grams of glucose are needed to prepare 400 g of 2% m/m glucose solution? 2) how many moles of cacl2 are in 250 ml of a 3 m of cacl2 solution? 3) How many liters of oxygen gas form when 294 g of KClO3 completely react in the following reaction? 4) What is theangle between electron groups in the linear electron geometry?
determine whether or not the mixing of each of the two solutions indicated below will result in a buffer. 150 mL of .10M HF, 135 mL of .175M HF
What is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? Calculate the wavelength of the 4 ---> 3 transition.
a fuel oil is composed of C10H22 and C12H26 when the fuel oil ios burned with 20% excess air the ratio of water to CO2 is found to be 1.088.
calculate the amount of heat necessary to raise the temperature of 53.4 grams of ice at -50.0 degrees celsius to water
Sodium atoms(Na) emit light with a wavelength(λ) of 330 nano meters when an electron moves from a state of 4 p orbital to a state of 3 s orbital now you just need to determine the energy difference between the orbitals.
Aspirin (C9H8O4) is produced through the following reaction of salicylic acid (C7H6O3) and acetic anhydride (C4H6O3). C7H6O3(s) + C4H6O3-> C9H8O4(s) + HC2H3O2
An aerosol spray can of deodorant with a volume of 350 mL contains 3.0 g of propane gas C3H8 as propellant.
Describe the reactant and products of the chemical reaction. Was the reactant (potato chip) completely consumed? What evidence supports your answer?
What is the volume percent of a solution prepared by dissolving 34 g of NaOH in enough water to make a final volume of 120 mL? Show your work. part b: How many mL of a 10% solution can be made from the solution in part a
Write out the mechanism for the oxime formed from 2-butanone and hydroxylamine under acid catalyzed conditions.
Calculate the reaction Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g) What mass of ZnCl2 (MW = 136.3 g/mol) can be prepared from the reaction of 3.27 grams of zinc
Which concentration becomes smaller as the temperature is increased from 20 degrees celcius to 80 degrees celcius
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