A car travels at 55 mi/h and gets 11 km/L of gasoline. How many gallons of gasoline are needed for a 5.0-h trip? Note 1 mi = 1.609 km and 1-gal = 3.785 L. Your answer must have the correct significant figures   ______   gal

Q: Write the numbers in scientific notation. 10991099 1099=1099=       ×10?×10a ?=       0.000950.00095…

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Q: What is the cost to drive to Las Vegas, which is 883 km away, if the cost of gasoline is $1.15/L and…

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Q: In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 28.0 mi/gal, how…

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Q: Indicate how many significant figures there are in (a) 0.305 0 (b) 0.003 050 (c) 1.003 X 104

A: a.  0.3050 Number of significant figure:  4   b.  0.003050 Number of significant figure:  4

Q: While in Europe if you drive 101 km per day how much money would you spend on gas in one week if gas…

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Q: The volume of a gas was measured to be 32.74 liters. If the density is 1.19 g/L, what is the mass of…

A: Denisty Formula density = mass of a gas/volume of the gas Given values  Mass of the gas =?  Volume…

Q: Convert 56 mile/hour to km/min. Leave your answer in 2 significant figures. Please do not enter…

A: Given that -  56 mile/hour    We know that one mile is equal to 1.609 km , and 1 hour is equal to 60…

Q: How many significant figures should your answer have? 8.101 x 0.10 = %3D O 1 O 2 0 3 4 0 5 07 08

A: Calculate number of significant figure in the calculation--

Q: he density of a substance is 2.15 g/mL. What is the mass of 0.15 L of the substance in grams? Use…

A: Density of a substance is equal to the mass of substance divided by its volume. Write the expression…

Q: An imported car is listed as geting 12.9km/L. What is the cars gas mileage in units miles/gal(mpg)?…

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Q: A car averages 28.5 miles per gallon of gasoline. How many liters of gasoline will be needed for a…

A: Car average = 28.5 miles per gallon Trip Distance = 415 km Conversion Factors: 1 qt = 0.946 L 1 mile…

Q: Carry out each of the following conversions a. 5,250 ft to km b. 6.5 ft to cm 2. On a recent road…

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Q: 5. Perform the following conversions: (a) 72.3 mg to g, (b) 6.0x10 1m to mm, and (c) 325 mm to um.…

A: 5) Here, we have to convert : a) 72.3 mg to g b) 6.0×10-10 m to mm c) 325 mm to μm

Q: Pheromones are compounds secreted by females of many insect species to attract mates. Typically,…

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Q: The density of lead is 11.0g/cc at 4 degrees Celsius. What is the density of lead in pounds per…

A: We know that1 Pound lb=453.59 g1 foot=30.48 cm⇒ 1 g=1453.5 glb⇒1 cm=130.48ft

Q: ) A student measured the volume of a sample and reported the value as 48.93 mL, which digit in the…

A: 1. Volume measured by the student is 48.93 ml . Thus 4, 8 and 9 are the certain numbers where as…

Q: 1.7464 x 10° ms Express your answer in scientific notation to three significant figures. | ν ΑΣφ ?…

A: Given that : We have to express our answer in scientific notation to three significant figures for…

Q: 1. of the following conversion problems to complete. Report your answer with the correct number of…

A: a)  Given :-  0.510 in/min  km/hr = ?

Q: If a lake has a surface area of 13.5 km2 and an average depth of 17.4 m. What is the volume of the…

A: Given: Surface area of lake = 13.5 km2 Average depth of the lake = 17.4 m To calculate: Volume of…

Q: in the US system, 1 lb is equal to 16oz. is this a measured or exact statement

A: To convert on unit into other we know we have two ways to represent them ; 1)  Exact number :-…

Q: 0179 7. The volume of blood plasma in adults is 5.5 L The density of blood plasma is 1.03 body?…

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Q: your car gets 35 mi/gal, how many gallons of gasoline would you use if you drove 570.3 miles?  1…

A: Given -> Distance= 570.3 miles 1 mile = 5280 ft  Car gets -> 35 mi/gal

Q: Name: Date: Class period: Unit: Introduction to Chemistry "Significant Figures in Calculations" - WS…

A: Hello. Since there are multiple questions and each question has more than three sub-parts, the first…

Q: Suppose that an in-ground swimming pool has a length and width of 22.0 ft and 39.5 ft, respectively,…

A: to obtain the volume  of cuboid multiplication of length,width and height is done.

Q: 12.79 mL of a liquid has a mass of 15.34 g.  What is its density? Report to four significant digits.

A: Volume of liquid = 12.79 mL Mass of liquid= 15.34 g   We know that ; Density = mass / volume By…

Q: If your car gets 45.7 mi/gal, how many gallons of gasoline would you use if you drove 538.6 miles?

A: the car drove 45.7-mile per gallons of gasoline  thus to drive 538.6 miles, gasoline required =…

Q: If 20.0 Cal make an ounce, how many ounces of formula should a baby drink per day of the energy need…

A: Given data 20.0 cal = 1 ounce energy need per day = 1.50 x 103 cal

Q: 1. Given that 1 kilomoeter (km) = 0.6214 miles; calculate the following:       How many miles is 10…

A: 1 kilomoeter (km) = 0.6214 miles  as 0.6214 miles = 1 km  multiply both side by 10  so , 6.214 miles…

Q: A dime is found to have a volume of 0.000407 liters. Show, using unit analysis, what the volume of…

A: 1 L = 1.06 qt

Q: How manny cars are there in a long freight train if it takes the entire train 2.00 min to pass a…

A: Given, the long freight train takes time = 2 min Train travels to station per hour = 40 miles per…

Q: The density of water at 30.0 °C is 0.9956 g/mL. If the specific gravity of acetic acid is 1.040 at…

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Q: Express each number in scientific notation.a. 700 c. 4,500,000 e. 0.0054 g. 0.000000076b. 38,000 d.…

A: Since you have posted multiple sub-parts, the answer for first three subparts are given below.…

Q: Write each of the following numbers in standard scientific notation. a. 1/1033 b. 1/105 c. 1/10-7 d.…

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Q: What is the density (g/mL) of each of the following samples? Part A A lightweight head on a golf…

A: The density can be defined as the mass of the substance per unit volume of the solution which can be…

Q: Question 5- Calculate the following and express your answer in scientific notation with the correct…

A: The significant figures of a number written in positional notation are digits that carry meaningful…

Q: Hi :) It's a significant figures question - I was wondering if you count 12.4kg as 3 significant…

A: Significant numbersThe number of significant figures in the final answer should be equal to the…

Q: Robert was able to travel 292.0 miles in 4.000 hours and used 38 liters of gasoline. What was…

A: Some important unit conversions are  1 mi = 5280 ft 1 hr = 60 min  1 min = 60 sec

Q: Convert 1.90 gallons to each the follwing. Show your set ups. Report answers in decimal notations…

A: 1 gallon is equivalent to 3.78541 L and 1.90 gallons is equal to 1.90 × 3.78541 L = 7.19 L (three…

Q: An object weighs 9.0330 g.  When the object is put into a graduated cylinder that contains 24.9 mL…

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Q: Carry out the following conversions: (a) 0.105 in. to mm, (b) 0.650 qt to mL, (c) 8.75 mm>s to…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Q13. Convert 27 m/s to km/hr. (a) 97 km/hr (c) 1.6 km/hr (b) 7.5 km/hr (d) 0.027 km/hr

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Q: 57 ft is how many m?

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Q: How many miles in 1.2 x 104 yards? Along with the conversions from your equation sheet, you will…

A: Number of miles in 1.2 x 104 yards =? 3 ft = 1 yard We know that, 1 yard = 0.000568182 mile

Q: Use dimensional analysis to make the following conversions. Use conversion factors and show unit…

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Q: A metal bar has a density of 7.9 g/mL. If the volume of the bar is 500 mL, what is the mass in kg?

A: Given data :- Density of metal bar = 7.9 g/mL Volume of metal bar = 500 mL To find mass in kg of…

Q: Perform the following conversions: (a) 5.00 days to s,(b) 0.0550 mi to m, (c) $1.89/gal to dollars…

A: A) 5.00 days to seconds: 1 day = 24 hours  1 hour =60 minutes  1 minute= 60 seconds The conversion…

Q: If your car gets 35 mi/gal, how many gallons of gasoline would you use if you drove 570.3 miles?

A: Answer: In the given problem statement mileage of the car and distance travelled is mentioned and we…

Q: 9. Express the number 0.000053 in scientific notation. A) 5.3×10² B) 5.3x10³ C) 5.3×10+ D) 5.3x10-5…

A: 9. We have to predict the number in scientific notation. 10. We have to predict the number of Sig…

Q: I need help understanding how to compute Density and Specific Gravity. Density question- Greg as a…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 15) How many significant figures are in 4.010000kg? A) 7 B) 3 C) 5 16) What is the answer for the…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.