Chemistry - General Chemistry. Helping Quiz 2

Ammonium perchlorate, NH4ClO4, is a common fuel component of solid fuel rockets. If 75% of the oxygen in NH4ClO4 was converted to molecular oxygen, how many grams of molecular oxygen would be produced from 117.5 kg ammonium perchlorate?

14

What is the proposed name and symbol for element 116?

15

Identify the greatest mass.

16

An aqueous solution is a homogeneous mixture of a substance with water and should be designated with the (l) abbreviation

17

Gallium has an atomic mass of 69.723 amu. The Ga-69 (68.926 amu) is 60.11%. What is the amu of the other isotope?

18

Nitric oxide and bromine were allowed to react in a sealed container. When equilibrium was reachedPNO = 0.526 atm, <img src="https://sciemce.com/files/4/ppg__ttt0827191225__f1q653g1.jpg" alt="" style="vertical-align: 0.0px;" height="22" width="22" />= 1.59 atm, and PNOBr = 7.68 atm. Calculate Kp for the reaction. 2NO(g) + Br2(g) <img src="https://sciemce.com/files/4/ppg__ttt0827191225__f1q653g2.jpg" alt="" style="vertical-align: 0.0px;" height="12" width="25" />2NOBr(g)

19

Which statement is false?

20

Roughly ________% of all iron and steel produced each year is used to replace corroded items

21

A substance that melts at 122°C is probably:a

22

How many mechanistic steps are depicted by in this potential energy diagram for the decomposition of cyclobutane to ethylene?

23

The number of lines in the emission spectrum of an element is equal to the number of electronic energy levels in the atom.

24

What is the molecular formula of a cyclic alkane with 5 carbon atoms?

25

Which of the following geometries is not common in transition-metal complex ions?

26

What is the oxidation number of an uncombined element?

27

Select the pair of substances in that an acid is listed followed by its conjugate base.

28

What is the volume of 9.783 × 1023 atoms of He at 9.25 atm and 512K?

29

A volume of 3.0 L of butane is burned in excess oxygen. Balance the chemical equation below and determine how many total liters of gases are produced? Assume that both the reactant and product temperature is 500 K and the pressure of the system remains constant at 1.0 atm. C4H10(g) + O2(g) ® CO2(g) + H2O(g)

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Chemistry - General Chemistry. Helping Quiz 2

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