2. Which one of the following statements concerning the mole is false? A) The mole is related to Avogadro's number. B) The mole is defined in terms of the carbon-12 isotope. C) The mole is the SI base unit for expressing the "amount" of a substance. D) One mole of a substance has the same mass as one mole of any other substance. E) One mole of a substance contains the same number of particles as one mole of any other-substance.

2. Which one of the following statements concerning the mole is false? A) The mole is related to Avogadro's number. B) The mole is defined in terms of the carbon-12 isotope. C) The mole is the SI base unit for expressing the "amount" of a substance. D) One mole of a substance has the same mass as one mole of any other substance. E) One mole of a substance contains the same number of particles as one mole of any other-substance.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter1: Units And Measurement

Section: Chapter Questions

Problem 10CQ: For each of the following scenarios, refer to Figure 1.4 and Table 1.2 to determine which metric...

See similar textbooks

Similar questions

Indicate to what decimal position readings should be recorded (nearest 0.1, 0.01, etc.)for measurements made with the following devices.a. A thermometer with a smallest scale marking of 1°Cb. A graduated cylinder with a smallest scale marking of 0.1 mLc. A volumetric device with a smallest scale marking of 10 mLd. A ruler with a smallest scale marking of 1 mm
34. The mass of a sample of nickel is 11.74 g. It contains A. 4.287 x 1022 atoms B. 1.205 x 1023 atoms C. 1.174 x 1023 atoms D. 1.869 x 1023 atoms E. 3.256 x 1023 atoms
6. The ideal gas law describes the state of a hypothetical ideal gas, i.e., PV = nRT where P is the pressure in Pascal, V is the volume in liters L, R is the ideal gas constant, T is the temperature in kelvin K, and n is the amount of substance. Suppose a researcher has n = 0.654 moles of neon gas. He observed that T and V are increasing at rates of 3 K/min and 2 L/min, respectively, using the fixed gas constant R = 8.31 J/K.mol, find the rate at which the pressure is changing when V = 12.3 L and T = 447K.
The table data: 15 1.75 13 1.63 11 1.5 9 1.35 7 1.19 5 1.01 3 0.78 A. Graph these data B. Describe the graph C. Using the data, calculate 1/2t^2 and complete table 2 below
1.) A 232 mL cup of whole milk contains about 27 mg of cholesterol. Express the cholesterol concentration of the milk in kilograms per cubic meter (kg/m^3). 2.) A typical person has an average heart rate of 69.0 beats/min. Calculate the given questions. How many beats does she have in 7.0 years? How many beats in 7.00 years? And finally, how many beats in 7.000 years? Pay close attention to significant figures in this question.
All but one of the following statements is true. Which one is not true? A mass (in grams) equal to the molecular mass (in atomic mass units) of a pure substance contains the same number of molecules, no matter what the substance is. Ten grams of a pure substance contains the same number of molecules, no matter what the substance is. One mole of any pure substance contains the same number of molecules. Ten grams of a pure substance contains twice as many molecules as five grams of that substance. Avogadro's number of molecules of a pure substance and one mole of the substance have the same mass.
The specific reaction rate constant k is a strong function of temperature according to the following equation: 1 In the equation above, the reaction rate constant k is expressed in R is the universal gas constant 8.314- What is the unit of A? O mol m OK Om O J O mol K J mol 01 S Pa.m ³ m k=Axexp- Pa.m³ constant (1.314 P-²). mol. K E RT and T is the absolute temperature in K. The equation is dimensionally homogenous.
Charle's Law states that for a given mass of a gas at constant pressure, the volume is directly proportional to its thermodynamics temperature. A certain gas has a volume of 2.25 L at a temperature of 320K. a. Determine the constant of proportionality. b. Determine the volume of the gas at a temperature of 420K. c. Determine the temperature of the gas at a volume of 2.615 L
6) The absolute temperature of an ideal gas is directly proportional to which of the following quantities? A) the average speed of its molecules B) the mass of its molecules C) the average momentum of its molecules D) the average kinetic energy of its molecules E) It is proportional to all of the above quantities.
4. What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20. °C and standard pressure? 5. What volume would a sample of gas have if the pressure is 8.2 atm, the number of gas particles is 2.0 moles, and the temperature is -73 degrees Celsius?
Question 3/ Calculate the density of the nuclear substance of the nucleus of the Carbon-12 atom, if you know that: Mc 12amu , Rc 2.7x1015 m
2. At the beginning of 2006, the rate of energy consumption for the city of Denver was 7000 megawatts (MW), where 1 MW = 106 W. The rate was expected to increase at an annual growth rate of 2% per year. a) Find the function that gives the rate of energy consumption for all times after the beginning of 2006. b) Find the total amount of energy used during the year 2010. Note: the entire year 2010 corresponds to the interval 4 < t < 5.