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In the pie chart graphs the percent natural abundance fo ci-35 (atomic mass 34.969) is represented as grean, and the percent natural abundance for cl-37 atomic mass 36.966 amu is represented as yellow. given that the atomic mass listed for co in the periodic table 35.353amu and with out looking up the percent natural abundances for eith isotope, which pie chart is most correct? and why
a. 3/4 yellow chartb. 3/4 green chartc. 1/2 yellow chart
Calculate the concentration of NO3- ion remaining in solution.
Calculate the total volume of gas (at 124C and 758mmHg) produced by the complete decomposition of 1.45 kg of ammonium nitrate.
In HPLC, how often should I need to run standard with samples? Why? If the retention time is changed with real samples compared to standard
500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete?
The element copper has an atomic weight of 63.5 and consists of two stable isotopes copper-63 and copper-65. The isotope copper-63 has an atomic mass of 62.9 amu and a percent natural abundance of 69.1 %.
following hybridization these 4 unpaired electrons can form covalent bonds. In order to promote an s electron to an empty p orbital, energy is required. Is it energetically favourable to promote this electron when bonding? Why or why not
write a molecular equation total ionic equation and net ionic equation for this precipitation reaction between the given ionic compounds Ba(no3)2 and NiSO4.
A .76g sample of polyvinyl chloride (PVC) is dissolved in 250mL of a suitable solvent at 25C. the solution has an osmotic pressure
You want to produce a mixture containing 19 wt% NaCl. Find the volume of the second feed solution.
A 30.00 mL solution of potassium nitrate (KNO3) was diluted to 125.0 mL, and 25.00 mL of this solution were then diluted to 150.0 mL. The concentration of the final solution is 0.00307 M. Calculate the concentration of the original solution.
sketch the qualitative molecular orbital diagram for the complexes.
how many moles of hydrogen ions were converted to water when 85. ml of 1.0 M hydrochloric acid were neutralized by sodium hydroxide.
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