Laboratory data indicates a compound is composed of 43.3 percent sodium 11.3 percent carbon and 45.3 percent oxygen How many grams of each element could be presumed to be present
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Definition1/19
43.3 g Na, 11.3 g C and 45.3 g O
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Term1/19
Subtracting four from the period number of an inner-transition metal will indicate the number of shells
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Definition1/19
false
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Term1/19
Choose the empirical formula
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Definition1/19
A+..... All Of Those
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Term1/19
The formula for sulfuric acid is HËÃSOËÅ A mole of sulfuric acid would have a mass of grams
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Definition1/19
It would have a mass of 98 grams.
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Term1/19
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40 percent C 6.7 percent H and 53.3 percent O What is the empirical formula and the molecular formula of this compound
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Definition1/19
ch2o and c6h12o6
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Term1/19
Vinegar contains acetic acid The formula for acetic acid is CHËÄCOOH One mole of acetic acid has a mass of grams
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Definition1/19
60
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Term1/19
Type the capital letter that represents this equation after it has been correctly balanced Press Enter
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Definition1/19
3MgCl2...
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Term1/19
A baker uses the term one dozen to indicate a specific quantity 12 What quantity does the chemists term one mole indicate
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Definition1/19
6.02 x 10^23
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Term1/19
When determining empirical formulas from laboratory data the mole ratio is used to determine what
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Definition1/19
subscripts
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Term1/19
Using the periodic chart indicate the most common charge of magnesium
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Definition1/19
1
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Term1/19
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
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Definition1/19
Chi a+
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Term1/19
A compound formed of 0.059 mol hydrogen and 0.94 mol oxygen has a molecular mass of 34.0 gmole What is the molecular formula of this compound
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Definition1/19
h2o2
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Term1/19
A compound found to contain 75.7 arsenic and 24.3 oxygen would have which of the empirical formulas below
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Definition1/19
As2O3
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Term1/19
The formula for methane is CH4. Four moles of methane would have a mass of how many grams
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Definition1/19
Four moles of methane would have a mass of 64,12 grams.
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Term1/19
The formula for ethyl alcohol is C2H5OH. The mass of 2 moles of ethyl alcohol would be how many grams
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Definition1/19
The mass of 2 moles of ethyl alcohol would be 92,14 grams.
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Term1/19
Use the electronegativity chart to determine the type of bond that will form between this pair of elements.
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Definition1/19
Use the electronegativity chart to determine the type of bond
that will form between this pair of elements.
N + N
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Term1/19
Choose the best definition of STP
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Definition1/19
a term that indicates a combined measurement of standard atmospheric pressure and room temperature. A+
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Cards in this guide (19)
The subscripts of a compound indicate
the ratio of elements
The ideal gas law measures pressure in
atmospheres A+
Laboratory data indicates a compound is composed of 43.3 percent sodium 11.3 percent carbon and 45.3 percent oxygen How many grams of each element could be presumed to be present
43.3 g Na, 11.3 g C and 45.3 g O
Subtracting four from the period number of an inner-transition metal will indicate the number of shells
false
Choose the empirical formula
A+..... All Of Those
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.
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40 percent C 6.7 percent H and 53.3 percent O What is the empirical formula and the molecular formula of this compound
ch2o and c6h12o6
Vinegar contains acetic acid The formula for acetic acid is CHËÄCOOH One mole of acetic acid has a mass of grams
60
Type the capital letter that represents this equation after it has been correctly balanced Press Enter
3MgCl2...
A baker uses the term one dozen to indicate a specific quantity 12 What quantity does the chemists term one mole indicate
6.02 x 10^23
When determining empirical formulas from laboratory data the mole ratio is used to determine what
subscripts
Using the periodic chart indicate the most common charge of magnesium
1
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+
A compound formed of 0.059 mol hydrogen and 0.94 mol oxygen has a molecular mass of 34.0 gmole What is the molecular formula of this compound
h2o2
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 ethyl alcohol is C2H5OH. The mass of 2 moles of ethyl alcohol would be how many grams
The mass of 2 moles of ethyl alcohol would be 92,14 grams.
Use the electronegativity chart to determine the type of bond that will form between this pair of elements.
Use the electronegativity chart to determine the type of bond
that will form between this pair of elements.
N + N
Choose the best definition of STP
a term that indicates a combined measurement of standard atmospheric pressure and room temperature. A+
A gas held at 798 mmHg in a 400 mL flask is released into a 3 L flask What will be the new gas pressure
The ideal gas law measures pressure in
Laboratory data indicates a compound is composed of 43.3 percent sodium 11.3 percent carbon and 45.3 percent oxygen How many grams of each element could be presumed to be present
Sodium will react with oxygen to form sodium oxide Use the formula below to determine how many grams of sodium oxide will be formed if 46 grams of sodium are used in the reaction
The ideal gas law measures pressure in
Laboratory data indicates a compound is composed of 43.3 percent sodium 11.3 percent carbon and 45.3 percent oxygen How many grams of each element could be presumed to be present
If 2 moles of sodium carbonate are used in the reaction how many grams of sodium chloride will be formed
Sodium will react with oxygen to form sodium oxide Use the formula below to determine how many grams of sodium oxide will be formed if 46 grams of sodium are used in the reaction
A gas held at 798 mmHg in a 400 mL flask is released into a 3 L flask What will be the new gas pressure