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☆☆☆☆☆Cards in this guide (17)
The subscripts of a compound indicate
the ratio of elements
If formula for ammonia is NH what is the mass of 3 moles of ammonia would be in grams
The molar mass of ammonia is about 17 grams, so that 3 moles would have a mass of 51 grams.
The formula for ethyl alcohol is CËÃHËÆOH The mass of 2 moles of ethyl alcohol would be grams
The mass would be approximately 92 grams.
The formula for sucrose is CËÂËÃHËÃËÃOËÂËÂ Figure the molar mass of sucrose to the nearest gram
342
Choose the empirical formula
A+..... All Of Those
Jessica's teacher has asked her to bring her 0.40 moles of sodium chloride to the laboratory She should bring approximately grams
The formula for sulfuric acid is HËÃSOËÅ A mole of sulfuric acid would have a mass of grams
It would have a mass of 98 grams.
Vinegar contains acetic acid The formula for acetic acid is CHËÄCOOH One mole of acetic acid has a mass of grams
60
What is the molar mass of nitrogen dioxide to the nearest gram
The molar mass of nitrogen dioxide is 46.0055 g.
How many grams are in 0.25 moles HCl
1 mole of HCl is 36.5g so 0.25 moles are 36.5 x 0.25 = 9.125g
When determining empirical formulas from laboratory data the mole ratio is used to determine what
subscripts
The formula for aluminum sulfate is Al2 SO4 3 figure the molar mass of aluminum sulfate to the nearest gram
342
Calculate the empirical formula of a compound formed from 3 percent C 0.3 percent H and 96.7 percent you Which formula below correctly represents the empirical formula
Chi a+
How many grams of sodium are in 3 moles of sodium carbonate (NaËÃCOËÄ)
The answer is 137,97 g sodium.
A compound found to contain 75.7 arsenic and 24.3 oxygen would have which of the empirical formulas below
As2O3
The formula for methane is CH4. Four moles of methane would have a mass of how many grams
Four moles of methane would have a mass of 64,12 grams.
The formula for benzene is C6H6. Figure the molar mass of benzene to the nearest gram
The molar mass of benzene is 78 g.
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