Give the name or chemical formula, as appropriate, for each of the following acids: (d) hypochlorous acid (e) iodic acid (f) sulfurous acid.

Provide the name or chemical formula, as appropriate, for each of the following acids: (a) hydroiodic acid (b) chloric acid (c) nitrous acid

Provide the name or chemical formula, as appropriate, for each of the following acids: (e) HClO₄

Provide the name or chemical formula, as appropriate, for each of the following acids: (f) CH₃COOH.

Give the name or chemical formula, as appropriate, for each of the following binary molecular substances: (c) XeO₃ (d) dinitrogen tetroxide (e) hydrogen cyanide

Give the name or chemical formula, as appropriate, for each of the following binary molecular substances: (f) tetraphosphorus hexasulfide.

Write the chemical formula for each substance mentioned in the following word descriptions (use the front inside cover to find the symbols for the elements you do not know). (b) On treatment with hydrofluoric acid, silicon dioxide forms silicon tetrafluoride and water. (use the front inside cover to find the symbols for the elements you do not know). (c) Sulfur dioxide reacts with water to form sulfurous acid. (use the front inside cover to find the symbols for the elements you do not know). (d) The substance phosphorus trihydride, commonly called phosphine, is a toxic gas. (e) Perchloric acid reacts with cadmium to form cadmium(II) perchlorate.

Assume that you encounter the following sentences in your reading. What is the chemical formula for each substance mentioned? (c) Hydrogen cyanide is a very poisonous gas.

a. What elements are contained in hydrocarbons?

d. What is the empirical formula for octane?

a. What functional group characterizes an alcohol?

b. Write a structural formula for 1-pentanol.

All the structures shown here have the molecular formula C₈H₁₈. Which structures are the same molecule? (Hint: One way to answer this question is to determine the chemical name for each structure.)

Give the name or condensed structural formula, as appropriate.

a.

b.

c. 2-methylheptane

d. 4-ethyl-2,3-dimethyloctane

Give the name or condensed structural formula, as appropriate.

a.

b.

c. 2,5,6-trimethylnonane

d. 4-ethyl-5,6-dimethyldodecane

How many isomers are there of n-pentanol?

Suppose a scientist repeats the Millikan oil-drop experiment but reports the charges on the drops using an unusual (and imaginary) unit called the warmomb (wa). The scientist obtains the following data for four of the drops: Droplet Calculated Charge (wa) A 3.84⨉10⁻⁸ B 4.80⨉10⁻⁸ C 2.88⨉10⁻⁸ D 8.64⨉10⁻⁸ (a) If all the droplets were the same size, which would fall most slowly through the apparatus?

Suppose a scientist repeats the Millikan oil-drop experiment but reports the charges on the drops using an unusual (and imaginary) unit called the warmomb (wa). The scientist obtains the following data for four of the drops: Droplet Calculated Charge (wa) A 3.84⨉10⁻⁸ B 4.80⨉10⁻⁸ C 2.88⨉10⁻⁸ D 8.64⨉10⁻⁸ (b) From these data, what is the best choice for the charge of the electron in warmombs?

Suppose a scientist repeats the Millikan oil-drop experiment but reports the charges on the drops using an unusual (and imaginary) unit called the warmomb (wa). The scientist obtains the following data for four of the drops: Droplet Calculated Charge (wa) A 3.84⨉10⁻⁸ B 4.80⨉10⁻⁸ C 2.88⨉10⁻⁸ D 8.64⨉10⁻⁸ (c) Based on your answer to part (b), how many electrons are there on each of the droplets?

Suppose a scientist repeats the Millikan oil-drop experiment but reports the charges on the drops using an unusual (and imaginary) unit called the warmomb (wa). The scientist obtains the following data for four of the drops: Droplet Calculated Charge (wa) A 3.84⨉10⁻⁸ B 4.80⨉10⁻⁸ C 2.88⨉10⁻⁸ D 8.64⨉10⁻⁸ (d) What is the conversion factor between warmombs and coulombs?

The natural abundance of ³He is 0.000137%. (a) How many protons, neutrons, and electrons are in an atom of ³He?

The natural abundance of ³He is 0.000137%. (b) Based on the sum of the masses of their subatomic particles, which is expected to be more massive, an atom of ³He or an atom of ³H (which is also called tritium)?

The natural abundance of ³He is 0.000137%. (c) Based on your answer to part (b), what would need to be the precision of a mass spectrometer that is able to differentiate between peaks that are due to ³He⁺ and ³H⁺?

Identify the element represented by each of the following symbols and give the number of protons and neutrons in each: (a) ⁷⁴₃₃X

Identify the element represented by each of the following symbols and give the number of protons and neutrons in each: (b) ¹²⁷₅₃X (c) ⁸⁶₃₆X (d) ⁶⁷₃₀X

The nucleus of ⁶Li is a powerful absorber of neutrons. It exists in the naturally occurring metal to the extent of 7.5%. In the era of nuclear deterrence, large quantities of lithium were processed to remove ⁶Li for use in hydrogen bomb production. The lithium metal remaining after removal of 6Li was sold on the market. (b) The atomic masses of ⁶Li and ⁷Li are 6.015122 and 7.016004 u, respectively. A sample of lithium depleted in the lighter isotope was found on analysis to contain 1.442% ⁶Li. What is the average atomic weight of this sample of the metal?

The element oxygen has three naturally occurring isotopes, with 8, 9, and 10 neutrons in the nucleus, respectively. a. Write the full chemical symbols for these three isotopes.

The element lead (Pb) consists of four naturally occurring isotopes with atomic masses 203.97302, 205.97444, 206.97587, and 207.97663 amu. The relative abundances of these four isotopes are 1.4, 24.1, 22.1, and 52.4%, respectively. From these data, calculate the atomic weight of lead.

Gallium (Ga) consists of two naturally occurring isotopes with masses of 68.926 and 70.925 amu. a. How many protons and neutrons are in the nucleus of each isotope? Write the complete atomic symbol for each, showing the atomic number and mass number. b. The average atomic mass of Ga is 69.72 amu. Calculate the abundance of each isotope.