
Concept explainers
(a)
Interpretation:
The number of feet and number of meters in a nautical mile has to be calculated.
Concept introduction:
Nautical mile:
One nautical mile is defined as the one minute of arc along an earth meridian or
Conversion factors:
One kilometre is equal to
One nautical mile is equal to
One kilometre is equal to
(b)
Interpretation:
The swimming speed of northern Bluefin tuna in knots has to be calculated.
Concept introduction:
Knot:
One knot per hour is the speed of the ship through the water.
Historically, the unit of knot derived from the practice of measuring a ships speed by throwing a log tied to a knotted line over the side.
Conversion of units:
One nautical mile is equal to
Cross multiplication rule:
In science, this is rule is used to find the unknown value when the
(c)
Interpretation:
The number of leagues deep the marina trench has to be calculated.
Concept introduction:
League:
One league is defined as 3 nautical miles.
The Mariana trench is the deepest point in the ocean. The depth of the Mariana trench is
Conversion of units:
One nautical mile is equal to
Cross multiplication rule:
In science, this is rule is used to find the unknown value when the
(d)
Interpretation:
The percentage difference of nautical mile from the original definition of nautical mile and statue mile has to be calculated.
Concept introduction:
Nautical mile:
One nautical mile is defined as the one minute of arc along an earth meridian or
Conversion factors:
One kilometre is equal to
One nautical mile is equal to
One kilometre is equal to
Cross multiplication rule:
In science, this is rule is used to find the unknown value when the

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Chapter 0 Solutions
General Chemistry: Atoms First
- Correct each molecule in the drawing area below so that it has the skeletal ("line") structure it would have if it were dissolved in a 0.1 M aqueous solution of HCI. If there are no changes to be made, check the No changes box under the drawing area. No changes. HO Explanation Check NH, 2 W O :□ G ©2025 M unter Accessibilityarrow_forwardAn expression for the root mean square velocity, vrms, of a gas was derived. Using Maxwell’s velocity distribution, one can also calculate the mean velocity and the most probable velocity (mp) of a collection of molecules. The equations used for these two quantities are vmean=(8RT/πM)1/2 and vmp=(2RT/M)1/2 These values have a fixed relationship to each other.(a) Arrange these three quantities in order of increasing magnitude.(b) Show that the relative magnitudes are independent of the molar mass of the gas.(c) Use the smallest velocity as a reference for establishing the order of magnitude and determine the relationship between the larger and smaller values.arrow_forwardThe reaction of solid dimethylhydrazine, (CH3)2N2H2, and liquefied dinitrogen tetroxide, N2O4, has been investigated for use as rocket fuel. The reaction produces the gases carbon dioxide (CO2), nitrogen (N2), and water vapor (H2O), which are ejected in the exhaust gases. In a controlled experiment, solid dimethylhydrazine was reacted with excess dinitrogen tetroxide, and the gases were collected in a closed balloon until a pressure of 2.50 atm and a temperature of 400.0 K were reached.(a) What are the partial pressures of CO2, N2, and H2O?(b) When the CO2 is removed by chemical reaction, what are the partial pressures of the remaining gases?arrow_forward
- One liter of chlorine gas at 1 atm and 298 K reacts completely with 1.00 L of nitrogen gas and 2.00 L of oxygen gas at the same temperature and pressure. A single gaseous product is formed, which fills a 2.00 L flask at 1.00 atm and 298 K. Use this information to determine the following characteristics of the product:(a) its empirical formula;(b) its molecular formula;(c) the most favorable Lewis formula based on formal charge arguments (the central atom is N);(d) the shape of the molecule.arrow_forwardHow does the square root mean square velocity of gas molecules vary with temperature? Illustrate this relationship by plotting the square root mean square velocity of N2 molecules as a function of temperature from T=100 K to T=300 K.arrow_forwardDraw product B, indicating what type of reaction occurs. F3C CF3 NH2 Me O .N. + B OMearrow_forward
- Benzimidazole E. State its formula. sState the differences in the formula with other benzimidazoles.arrow_forwardDraw product A, indicating what type of reaction occurs. F3C CN CF3 K2CO3, DMSO, H₂O2 Aarrow_forward19) Which metal is most commonly used in galvanization to protect steel structures from oxidation? Lead a. b. Tin C. Nickel d. Zinc 20) The following molecule is an example of a: R₁ R2- -N-R3 a. Secondary amine b. Secondary amide c. Tertiary amine d. Tertiary amidearrow_forward
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