Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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Match the left column correctly with the right column.
Hg2CL2
molecular element
Silicon dioxide
atomic element
Hydrosulfuric acid
molar mass
HIO4
si O2
NO
mole
Avogadro's Number
H2S
Isotopers
NO2
Germanium
Nitorgen monoxide
O2 gas
periodic acid
metalloid
mercury(I) chloride
Silicon oxide
percent natural abundance
8.5 D Chemistry Retest
5 of 55 of 5 Items
Question
POSSIBLE POINTS: 20
-:---:--
The chemical formula of ammonium phosphite is shown below.
(NH4)3PO3
How many total atoms are in one molecule of ammonium phosphite?
Responses
19
19
10
10
12
12
16
Acetaldehyde has the molecular formula C2H4O. Given 55.0 g of Acetaldehyde answer the following questions.Find the number of moles of hydrogen in 55.0 g of acetaldehyde (C2H4O) and molecules? Find the number of carbon atoms in of 55.0 g of acetaldehyde (C2H4O)?
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- Acetaminophen, whose structure is drawn below, is the active ingredient in some nonprescription pain killers. The recommended dose for an adult is two 500-mg caplets. How many molecules make up one dose of this drug?arrow_forwardThe molecular mass of the compound is 90 amu. What is the molecular formula? Insert subscripts as needed. CHOarrow_forwardMartha sees a vile in her chemistry lab with the label C6H5O7. Her professor tells her it is citrate, a polyatomic ion with a -3 charge. She takes 1 mole of it and adds 3 moles of H to it. Her professor then tells her it tastes nicely sour. Martha knows she created citric acid. What is it's the chemical formula?arrow_forward
- Para-aminobenzoic acid, PABA, is an organic compound that has been used as a component in suntan lotions. The formula of PABA is C7H7NO2. Using the periodic table in your courseware and what you learned in the chapter on measurements, determine the molecular mass of PABA.arrow_forward5. Leaded gasoline contained a highly toxic compound called Tetraethyl Lead (TEL) [CH₂0Pb]. It was used to boost octane ratings and prevent engine knocking. What is the percent elemental composition of TEL?arrow_forwardAn element X forms both a dichloride (XCl2) and a tetrachloride (XCl4). Treatment of 10.000gm of XCl2 with excess chlorine forms 12.550 grams of XCl4. Calculate the atomic mass of X and determine its identity.arrow_forward
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