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connor50:
Group Title
How many nitrate ions are in 5.00 g of magnesium nitrate? Please show work, need to know how to do it?
 updated 3 months ago
 1 reply
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Mathematics

connor50:
Group Title
Complete and balance the molecular equation, including phases, for the reaction of aqueous sodium sulfate, Na2SO4, and aqueous barium nitrat…
 updated one year ago
 1 reply
 2 Medals
Mathematics

connor50:
Group Title
Find the molarity of 20.5 g of NaCl in 669 mL of solution.
 updated one year ago
 1 reply
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Mathematics

connor50:
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Write and balance the equation for the complete combustion of acetylene, C2H2. You do not need to include any phase symbols or energy change…
 updated one year ago
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Mathematics

connor50:
Group Title
An unknown compound contains only C, H, and O. Combustion of 5.40 g of this compound produced 10.8 g of CO2 and 4.42 g of H2O.
What is the …
 updated one year ago
 1 reply
 2 Medals
Mathematics

connor50:
Group Title
Complete combustion of 3.30 g of a hydrocarbon produced 9.99 g of CO2 and 5.11 g of H2O. What is the empirical formula for the hydrocarbon?
 updated one year ago
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Mathematics

connor50:
Group Title
Which molecules are polar?
CH2Cl2
…
 updated one year ago
 1 reply
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Mathematics

connor50:
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Many free radicals combine to form molecules that do not contain any unpaired electrons. The driving force for the radicalradical combinati…
 updated one year ago
 1 reply
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Mathematics

connor50:
Group Title
If the CPI for 2009 was 148.3 and for 2012 was 152.5, what was the inflation rate between the two years?
a) .97%
…
 updated one year ago
 1 reply
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Mathematics

connor50:
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(Plant Diversity)
Do you think that all pollen germinates indiscriminately on all stigmas? How might pollen germination and growth be contr…
 updated one year ago
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Mathematics

connor50:
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how many atoms are there in 1.60 moles of Se?
…
 updated one year ago
 1 reply
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Mathematics

connor50:
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What is the mass (amu) of a carbon12 atom? Why is the atomic mass of carbon listed as 12.01 amu?
 updated one year ago
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Mathematics

connor50:
Group Title
What is the mass (amu) of a carbon12 atom? Why is the atomic mass of carbon listed as 12.01 amu?
 updated one year ago
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Mathematics

connor50:
Group Title
Calculate the energy for one mole of photons (an einstein) for light absorbed at 6.80 × 102 nm.
 updated one year ago
 1 reply
 2 Medals
Mathematics

connor50:
Group Title
A certain shade of blue has a frequency of 7.04 × 1014 Hz. What is the energy of exactly one photon of this light?
 updated one year ago
 1 reply
 1 Medal
Mathematics

connor50:
Group Title
Assuming that the smallest measurable wavelength in an experiment is 0.610 fm (femtometers), what is the maximum mass of an object traveling…
 updated one year ago
 3 replies
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Mathematics

connor50:
Group Title
Assuming that the smallest measurable wavelength in an experiment is 0.610 fm (femtometers), what is the maximum mass of an object traveling…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

connor50:
Group Title
Assuming that the smallest measurable wavelength in an experiment is 0.610 fm (femtometers), what is the maximum mass of an object traveling…
 updated one year ago
 2 replies
 2 Medals
Mathematics

connor50:
Group Title
How many photons are produced in a laser pulse of 0.819 J at 531 nm?
 updated one year ago
 8 replies
 1 Medal
Mathematics

connor50:
Group Title
A certain shade of blue has a frequency of 7.24 × 1014 Hz. What is the energy of exactly one photon of this light?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

connor50:
Group Title
Microwave ovens emit microwave energy with a wavelength of 12.8 cm. What is the energy of exactly one photon of this microwave radiation?
 updated one year ago
 3 replies
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Mathematics