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Chemistry

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Maeve Christiansen

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Cards in this guide (19)
The subscripts of a compound indicate

the ratio of elements

The molar mass of aluminum chloride is

133 A+

The ideal gas law measures pressure in

atmospheres A+

By referring to the periodic chart indicate which is the mass number of copper

63.546

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.

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

What is the molar mass of nitrogen dioxide to the nearest gram

The molar mass of nitrogen dioxide is 46.0055 g.

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

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+

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.

The formula for benzene is C6H6. Figure the molar mass of benzene to the nearest gram

The molar mass of benzene is 78 g.

Choose the best definition of STP

a term that indicates a combined measurement of standard atmospheric pressure and room temperature. A+

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