HChem Chapter 7 Flashcardizz - Formulas

Front

What is the name of the compound Cr(NO₂)₃?

Back

chromium (III) nitrite

Front

What is the proper formula for copper II bromide?

Back

CuBr₂

Front

What is the correct name for the compound with the formula (NH₄)₃PO₄?

Back

Ammonium Phosphate

Front

What is the formula of a compound having the smallest whole-number ratio of atoms?

Back

Empirical Formula

Front

What is the empirical formula of a compound containing 0.473 g of nitrogen, 33.8% carbon, and 1.41% hydrogen by mass?

Back

C₂HNO₂

Front

Define 'Chemical Formula'.

Back

A representation of a substance using symbols for its constituent elements and numbers to indicate the ratio of atoms.

Front

Define 'Empirical Formula'.

Back

The simplest whole-number ratio of atoms in a compound.

Front

What is the significance of the Roman numeral in copper (II) bromide?

Back

It indicates the oxidation state of copper, which is +2.

Front

How do you determine the empirical formula from percent composition?

Back

Convert the percentages to grams, then to moles, and find the simplest ratio.

Front

What is the difference between a molecular formula and an empirical formula?

Back

The molecular formula shows the actual number of atoms, while the empirical formula shows the simplest ratio.