How can we convert 6 x 102 J to kJ? Please show the significant figures conversion and solution.

Q: 1. 27 JJ to calories Express your answer using two significant figures.    2. 5300 JJ to kilojoules…

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Q: mony significant figures, Haw in answer (99.2-20.0(1.79XI05) 1.39

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Q: Convert 50 °F to °C and K

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Q: A 20oz soda bottlw has 240 calories How much energy, in units of kJ, does that soft drink supply the…

A: A 20oz soda bottlw has 240 calories.Energy = 240 caloriesEnergy = ? kJ Note: As we know that,1…

Q: if an object undergoes a temperrchange of 30 °F, what is the change in units of K?

A: ° F = 9/5(° K – 273) + 32

Q: A student uses a stoppered 25.0-mL volumetric flask to determine the density of a liquid. The mass…

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Q: A kilgram is 1000g?

A: The term SI base units refer to the seven units of measure which have been defined by the…

Q: if i have to supply the missing information for this conversion factor what would the answer be?…

A: The amount of matter present in a substance is known as its mass. It is the measure of actual…

Q: Convert 6.4 x 10^-28 j-s/ kg to erg- min /lb. Note that “j” means “ joule” - it is one of the units…

A: 6.4*10-28 j-s/Kg to erg-min/lb Conversion required : 1 J = 107 ergs 60 sec = 1 min => 1 sec =…

Q: Convert -46.2°C to Kelvin.

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Q: Classify the following by the sign of AE for the system. Drag the appropriate items to their…

A: To classify the following by the sign of ∆E for the system.

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: First, we need to understand the conversion from meters (M) to centimeters (CM). We know that 1…

Q: A chemistry student needs 40.0 g of butanoic acid for an experiment. She has available 1.0 kg of a…

A: Mass of butanoic acid needed = 40.0 g6.37% w/w butanoic acid solutionThis means that 63.7 g of…

Q: Convert the following measurement. 4.9 x 10 5 g cm $ 2 2 2 kg-m 2

A: Given that,Convert into .

Q: When 2 kg of water vapor cools to a temperature of 373 K, the value of q=-930 KJ. If the specific…

A: Formula used for calculation of q= mC∆T

Q: In the lab, a cube of concrete has a mass of 14.8 grams and its temperature rises from 23.3°C to…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: Different temperature scales can be converted to one another. O True False

A: The given statement is true.Differet temperature scales can be converted to one another.

Q: To how many significant figures should each answer be rounded?   equation A: (6.626× 10−34…

A: Equation A: (6.626× 10−34 J⋅s)(2.9979× 108 m/s)/(4.610×10−7 m)=4.308912234273×10−19 J Equation B:…

Q: I want to know if there is a chart to go by to know how to convert metric systems and SI units for…

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Q: To the correct number of significant figures calculate log(4.399x104).

A: Significant figures are the digits of a number that have meaning in terms of accuracy or precision.

Q: How many grams of N a Cl would need to be added to 345.00 grams öf wäter to lower the freezing point…

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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: what volume of water (in ml), initially at 54.3 C, needs to be mixed with 146ml of water, initially…

A: The formula used here is given below q=mC∆Twherem is the mass of sampleC is the specific heat and∆T…

Q: A 150-lb person burns about 2700 Calories to run a marathon. How much energy is burned in kJ? Assume…

A: A conversion factor is multiplied to change from one unit to another.

Q: Perform the indicated conversion: 3.06 × 103 cal = _____ J . (1 calorie 4.18 joules

A: Energy= 3.06 × 103 cal (1 calorie = 4.18 joules)

Q: A chemistry student needs 5.00 g of thiophene for an experiment. She has available 1.2 kg of a 7.83%…

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Q: Mass of cup + water Mass of empty cup Mass of water Initial water temperature Final water…

A: Answer: Relation between heat exchanged, mass of water and temperature change is shown below:…

Q: Perform each conversion between energy units. 3.71×106 kJ to kcal Express the value in kilocalories…

A: 1 Kcal = 1000 cal  1cal = 4.184J 1Kcal = 4.184J

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 water heater contains 54 gal of water. How many kilowatt-hours of energy are necessary to heat the…

A: Step 1-We have to calculate the value of energy in kilowatt hours necessary to heat the given water…

Q: A hospital patient has an oral temperture of 40.5 degrees celcius and weighs 155 pounds. He is to…

A: Given, Mass of patient = 155pounds Dosage = 1.50mg of drug/kg body mass Concentration of drug = 25mg…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: In chemistry g/mL or g/L is readily used so in order to convert one to other we have to used the…

Q: How much heat (in joules) is used to heat a 38.38 gram sample of iron from 5.56 degrees Celcius to…

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Q: When 38.9J of heat are added to 16.2g of liquid, its temperature rises by 1.93 degrees celcius. What…

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Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: In this type of question we need to identify the relationship between the two units and thereafter…

Q: b, a cube of granite has a mass of 40.9 grams and its temperature rises from 28.7oC to 63.0oC when…

A: Thermodynamics is the branch of chemistry that deals with the motion of heat. It is the study of the…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: The conversion of quantity from one unit system to another unit system is known as unit conversion.…

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.