When reacting chemicals together we may need to know what mass of each reactant to use so that they react exactly and there is no waste. To calculate this we need to know the chemical equation. This shows us the ratio of moles of the reactants and products – thestoichiometryof the equ...
reasonisthatthenumberislinkedtothestandardusedformeasuringrelativeatomicmass–canyourememberwhatthatwas?isotopecarbon-12.The A moleistheamountofanysubstancecontainingasmanyparticlesasthereareatomsinexactly12gramsofthecarbon-12isotope.Thereare6.02x1023atomsinexactly12gofcarbon-12.Thisnumberissometimes...
If you could help at all I would be very appreciative but if not that is fine and thank you anyway .1. CO2 in solid form is called dry ice. You have a block of dry ice that weighs 500g. How many moles of CO2 molecules do you have? g/mole = mass of carbon atom + mass of ...
Would 2 molecules of MnO2 produce 2 molecules of I2 since in that second equation there is 1 molecule of MnO2 and 1 molecule of I2? Logged Borek Mr. pH Administrator Deity Member Posts: 27838 Mole Snacks: +1811/-412 Gender: I am known to be occasionally wrong. Re: Naming Compound...
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For example helium has an atomic mass of 4.0026. That was obtained by adding the amount of protons and neutrons in a helium atom together. On... Mr_Bojingles Thread Jul 3, 2007 Tags Atomic Moles Replies: 5 Forum: ChemistryU Homework: CO2 Volume, Pressure, Temperature, and Moles ...
Calculating Moles of H2X and Mr of H2X in Reaction with NaOH (a) An acid, HX, reacts with sodium hydroxide as shown in the equation below: H2X(aq) + 2NaOH(aq) ---> 2Na+(aq) + X2-(aq) + 2H2O A solution of this acid was prepared by dissolving 1.92 g of H2X in water and...
Since the ionic equation shows 5 moles, than we multiply by 5...and we get the number of moles of Fe2+ in 10cm3 of solution. Then we x by 10 to get the number of moles in 100cm3 of solution, right? Logged Borek Mr. pH Administrator Deity Member Posts: 27867 Mole Snacks: +...