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Compute the mass of one atom of helium (atomic mass = 1.01 amu). Compute the wavelength of this atom if it is traveling at 0.8 c
using a sample of 21.004 grams of aqueous waste leaving a fertilizer manufacturer has nh3 ammonia. is diluted with h2o
A solution transmittance is 35% at 260 nm. What will the solution absorbance be if you dilute 25.0 ml
Calculate the pH after 0.020 mol of NaOH is added to 1.00 L of a solution consisting of 0.100 M HONH2 and 0.100 M HONH3Cl
how many moles of nitroglycerin were in the container originally? b) how many moles of gas(air) were in the container originally? c) how many moles of gas are in the container after the explosion?
Calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400 g of water
A 20.00-mL sample of 0.150 M KOH is titrated with 0.125 M HCIO4 solution. Calculate the pH after the following volumes of acid have been added.
the metal brass is really a solution of what two elements?1. tin and lead2. tin and copper3. tin and zinc4. copper and
If you have a vapor compression cycle using HCF-134a refrigerant instead, what is the minimum pressure would you have to achieve in the compressor in order to reject heat into the surroundings assuming that you need the refrigerant to be a minimum
When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3 + 2HCl image from custom entry tool CaCl2 + H2O + CO2
what kind of precautions need to be taken when working with grignard reagents? in addition which of the following types
What is the pH of a solution made by adding 11.0 grams of NH4Cl to 550 mL of 0.205 M NaOH. (Assume no change in volume takes place.)
Calculate Enthalpy of HNCO given that the enthalpy of the following reaction is -221.4 KJ/mol.
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