Questions from General Chemistry

Q: Make the following conversions. a. 1.25 in

Make the following conversions. a. 1.25 in. to feet and to centimeters b. 2.12 qt to gallons and to liters c. 2640 ft to miles and to kilometers d. 1.254 kg lead to its volume in cubic centimeters...

Q: A metal ion with a 2+ charge contains 34 neutrons and

A metal ion with a 2+ charge contains 34 neutrons and 27 electrons. Identify the metal ion and determine its mass number.

Q: Which of the following statements is (are) true?

Which of the following statements is (are) true? a. A 1.00-liter bottle contains more soda than a 1.00-quart bottle. b. A man who is 1.52 m tall is taller than a woman who is 5 ft 3 in. tall. c. A...

Q: Express each of the following numbers in scientific (exponential) notation

Express each of the following numbers in scientific (exponential) notation. a. 529 b. 240,000,000 c. 301,000,000,000,000,000 d. 78,444 e. 0.0003442 f. 0.000000000902 g. 0.043 h. 0.0821

Q: Express each of the following as an “ordinary” decimal number

Express each of the following as an “ordinary” decimal number. a. 2.98 * 10-5 b. 4.358 * 109 c. 1.9928 * 10-6 d. 6.02 * 10-3 e. 1.01 * 10-1 f. 7.87 * 10-3 g. 9.87 * 107 h. 3.7899 * 102 i. 1.0...

Q: Rewrite each of the following as an “ordinary” decimal number

Rewrite each of the following as an “ordinary” decimal number. a. 2.789 * 103 b. 2.789 * 10-3 c. 9.3 * 107 d. 4.289 * 101 e. 9.999 * 104 f. 9.999 * 10-5

Q: Write each of the following numbers in standard scientific notation.

Write each of the following numbers in standard scientific notation. a. 102.3 * 10-5 b. 32.03 * 10-3 c. 59933 * 102 d. 599.33 * 104 e. 5993.3 * 103 f. 2054 * 10-1 g. 32,000,000 * 10-6 h. 59.93...

Q: Evaluate each of the following, and write the answer to the

Evaluate each of the following, and write the answer to the appropriate number of significant figures. a. 149.2 + 0.034 + 2000.34 b. 1.0322 * 103 + 4.34 * 103 c. 4.03 * 10-2 - 2.044 * 10-3 d. 2.09...

Q: Evaluate each of the following, and write the answer to the

Evaluate each of the following, and write the answer to the appropriate number of significant figures. a. (0.0432)(2.909)(4.43 * 108) b. (0.8922)/[(0.00932)(4.03 * 102)] c. (3.923 * 102)(2.94)(4.09...

Q: Evaluate each of the following, and write the answer to the

Evaluate each of the following, and write the answer to the appropriate number of significant figures. a. (2.9932 * 104)[2.4443 * 102 + 1.0032 * 101] b. [2.34 * 102 + 2.443 * 10-1]/(0.0323) c. (4.3...