1. 27 JJ to calories Express your answer using two significant figures.    2. 5300 JJ to kilojoules Express your answer using two significant figures.   3. 374 kJkJ to joules Express your answer using three significant figures.

Q: Because of the high heat and low humidity in the summer in Death Valley, California, a hiker…

A: Given the distance to be covered in Death Valley = 35 km Amount of water required = 1 quart water…

Q: A pizza has an area of 3.44 m2. Perform a conversion to each of the following units. a) in^2 b)…

A: A pizza of area 3.44 m2 Conversions 1. m2 into in2 We know that 1m = 39.37 in there fore 1m2 =…

Q: Given that a 11.630 gg milk chocolate bar contains 7.815 gg of sugar, calculate the percentage of…

A: We have to calculate the% of sugar in 11.630 g of milk bar.

Q: Write each of the following numbers as “ordinary” decimal numbers.   6.244 x 103   9.117 x 10-2…

A: The given scientific notation is 6.244 x 103, to write the ordinary decimal notation, the decimal…

Q: 3) Water is placed into a separatory funnel along with one of the following liquids: diethyl ether…

A: In a separatory funnel, the distribution of liquids take place depending upon their density value.…

Q: Chemistry It is often necessary to do calculations using scientific notation when working chemistry…

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Q: Question 1 Convert 53.4 pm to m. Give your answer in scientific notation (e. g. 1.23E4 instead of…

A: Given, 1) convert 53.4 pm to m 2) convert 76.5 nL to mL 3) convert 10.0 ks to us Note: 1 pm = 10-12…

Q: Round 19047 x 10^-2 to 3 significant figures and put in scientific notation.

A: All zeros between non-zeros are significant. 10 raise to powers are non significant. Zeros after…

Q: You have recently lost 15% body fat by mass. What volume of fat in milliliters have you lost? What…

A: The density of a substance is calculated by the formula, ρ=mV Where, m is the mass of a substance.…

Q: Calculate the kinetic energy of a 35.g bullet moving at a speed of 213.ms.

A: Given :-  Mass of bullet = 35 g  Speed of bullet = 213 m/s  To calculate :- kinetic energy of bullet

Q: Marie was trying to make her favorite recipe but was not sure of the conversions.  Would you eat…

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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: Write 0.00293 in scientific notation with two significant digits. 2.9 x 10-3 2.9 x 103 2.93 x 10-3…

A: In scientific notation, we write a number with only one digit before the decimal. 10 raised to power…

Q: convert 5.32 times 10^-7 s to microseconds. use only the metric system

A: Given that,        5.32×10-7 s We have to convert 5.32×10-7 seconds to in units of microseconds.

Q: Perform each of the following conversions be sure to set up proper conversion factor in each case A)…

A: Conversion of 1.75 miles to kilometers should be given.Unit conversion from mi to in km can be done…

Q: Convert 3.712×1010 gg to each of the following units. kgkg Express your answer using four…

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Q: Convert each quantity to the indicated units.a. 3.01 g → cg                  d. 0.2 L → d m 3b. 6200…

A: It is very important to specify the measurements with both a number and a unit. A measurement…

Q: Normal body temperature is 98.4°F.  Use your Celsius temperature from the above question (81) to…

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Q: The temperature in a freezer is -22.74 Fahrenheit. What is the same temperature expressed in Kelvin?…

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Q: The highest recorded climatic temperature is 329 K in Death Valley, California. Express the…

A: The temperature in degree Fahrenheit ( ) is equal to the Kelvin temperature (K) times 9/5 minus…

Q: Gold, one of the most sought-after metals in the world, has a density of 19.3 g/cm3g/cm3, a melting…

A: Given: Mass of nugget = 23.53 lb. Specific heat of gold = 0.129 J/g.oC. Since 1 lb = 453.6 g. =>…

Q: A graduated cylinder contains 147 mLmL of water. A 13.0-gg piece of iron and a 22.0-gg piece of lead…

A: Given: Volume of water in a graduated cylinder = 147 mL Mass of iron added = 13.0 g Mass of lead…

Q: 2.49×106 kJ to kcal Express the value in kilocalories to three significant figures.

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Q: A piece of metal with a specific heat of 0.77 Jg-1°C-1 at 1164.7 °C is dunked into a beaker…

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Q: To how many significant figures should each answer be rounded? (6.626x 10-34 J. s) (2.9979x 10% m/s)…

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Q: What is 3/4 cup granulated sugar converted into nanograms? 1 cup of sugar = 198 grams 1 nanogram =…

A: Nanogram is the unit of measurement of mass  at  micro level.

Q: Calculate the mass of sugar weighed out.  a. Circle one: When performing the above calculation,…

A: According to significant figure rule when we subtract two numbers then the result will be in least…

Q: In the lab, a cube of concrete has a mass of 49.9 grams and its temperature rises from 29.3°C to…

A: Mass of concrete = 49.9 grams Initial Temperature = 29.3 °C  Final temperature = 69.9 °C  Specific…

Q: A new car is reported to get 15.3 kilometers per liter fuel economy.  What distance in km will this…

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Q: A 1,513,679 g car is traveling 0.965 m/s. Calculate the kinetic energy of the car in J, Do not put…

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Q: Rachel burns a 53 gram cracker under a soda can filled with 87.3 grams of water. She took the…

A: Rachel burns a 53 gram cracker under a soda can filled with 87.3 grams of water. She took the…

Q: One cup of clam chowder contains 29g of carbohydrates, 16g of fat and 9g of protein Part A: how much…

A: We are given with 29g of carbohydrates, 16g of fat and 9g of protein. Also we have value of energies…

Q: Of the following choices, which one has the LARGEST value? 0.0052 1.1 x 10^-3 (expressed in…

A:

Q: Write each of the following numbers as “ordinary” decimal numbers.   6.244 x 10^3   9.117 x 10^-2…

A: a) 6.244×103 6244 b) 9.117×10-2 0.09117 c) 8.299×101 82.99

Q: A patient is being administered fentanyl medication. The doctor prescribes that the fentanyl be…

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Q: A sports-utility vehicle has an average mileage rating of 17.00 miles per gallon. How many gallons…

A: Given that,  Average mileage rating of a sports utility vehicle = 17.00 miles per gallon We need to…

Q: Celsius and Fahrenheit Temperature Conversion  Conver 100.0°F to degrees Celsius and to kelvins.…

A: Conversion of temperature units in between degree Celsius, Kelvin and Fahrenheit is given by, 1.…

Q: Perform the following conversions in temperature. a. The temperature of a cold winter day is -25…

A: Degrees of Celsius 0C, Kelvin K and Fahrenheit degrees F are the different units for temperature. x…

Q: 75.92 g CF2C12 Express your answer to four significant figures and include the appropria µA ? NCF,C,…

A: Interpretation: We have to calculate the moles.

Q: If the gas mileage of a Honda Civic car is 38 miles per gallon how many liters of gasoline would the…

A: Given : Distance to be travelled = 37.2 Km And mileage of car = 38 miles per gallon.

Q: 263.3 mL of H2O at 18.17 °C is heated to 42.56 °C. How many kJ of heat did it gain from the…

A: We know,  q=c×m×∆T =>q=4.184J/g°C×263.3g×(42.56-18.17)°C

Q: The lowest temperature recorded in a particular city during the past year was -12.04° C. What was…

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Q: A runner want to run 11.2 km. Her running pace is 6.7 mi/hr. How many minutes must she run?

A: Total distance she wants to run = 11.2km Speed of runner = 6.7 miles/hour  We have to find the time…

Q: Enter an equality for the following medication in stock: 1.8 mg of Coumadin per 1 tablet of…

A: Given →           1. 1.8 mg of Coumadin per 1 tablet of Coumadin           2.  90 mg of Clozapine…

Q: The solubility of benzoic acid is 1.81 g per 100 mL of hot water. A student adds 1.81 g of benzoic…

A: Given : Mass of benzoic acid added in 100 mL water = 1.81 g  Solubility of benzoic acid at lower…

Q: To convert pascals (Pa) to kilopascals (kPa) move the decimal _________ places to the_______…

A: There are 1000 pascals(Pa) in 1 kilopascal(kPa) so in order to convert pascal into kilopascals we…

Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A: Introduction :- We can always multiply or divide measurements having same unit or different units.…

Q: In the product A · B · C, A has 5 significant figures, B has 2 significant figures, and C has 3…

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Q: An airplane consumes fuel at a rate of 3.5 gallons per second. How many liters of fuel are consumed…

A:

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.