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12,391 solutions

Molecular Formula

Q. Compound X has a molar mass of 230.30 g.mol^-1 and the following composition Write the molecular formula of X.

Solved • Dec 2, 2019

Empirical Formula

Q. A compound containing selenium and fluorine is decomposed in the laboratory and produces 2.231 g of selenium and 3.221 g of fluorine. Calculate the empirical formula of the compound.

Solved • Dec 5, 2019

Chemical Bonds

Q. Classify each of these chemical compounds: C6H6

Solved • Dec 2, 2019

Weak Acid Strong Base Titrations

Q. what is the pH of 0.25 M C6H5COOH (Ka = 6.3 × 10−5) with 0.25 M KOH?

Solved • Dec 4, 2019

Chemical Bonds

Q. Classify each of these chemical compounds: (CH3)2CO

Solved • Dec 2, 2019

Mole Concept

Q. Ch.6_20: How many moles of atoms are in each elemental sample? c) 7.91 x 10^23 K atoms d) 4.41 x 10^21 Ca atoms

Solved • Dec 5, 2019

Mole Concept

Q. Ch.6_20: How many moles of atoms are in each elemental sample? a). 4.6 x 10^24 Pb Atoms? b) 2.87 x 10^22 He atoms?

Solved • Dec 5, 2019