Carry out the following mathematical operations involving numbers that are expressed in scientific notation. a. (4.057 X 103 ) x (2.001 x 107) b. 4.1 x 10-10   /   3.112 x 10-7

Q: What is the volume of the following? A. 25g iodine; density=4.93g/cm³ B. 226g carbon;…

A: Given :  A. 25g iodine; density=4.93g/cm³   B. 226g carbon; density=0.089g/cm³  A. 6.00cm³ bromine;…

Q: If a room requires 134.8 square feet (ft2) of carpeting, what is the area of the floor in units of…

A: Given that: Area of the room = 134.8 square feet(ft2) Area of floor in m2 = ? (1m = 3.28084 ft)

Q: If a room requires 134.8 square feet (ft2) of carpeting, what is the area of the floor in units of…

A: 134.8 ft2 contain  four significant figures.  In case of multiplication and division , result…

Q: Determine the slope of this line. Calculate Ea KJ / mol The slope is y = 7097.3x - 17.85

A:

Q: Sodium bicarbonate is commonly used to absorb odor. It's solubility is 9.6 g/100g H2O at 30 degrees…

A: Given : Solubility of baking soda i.e Sodium bicarbonate at 30 oC = 9.6 g/100 g water = 0.096 g/g…

Q: A citrus dealer in Florida sells boxes of 100 oranges at a roadside stand. The boxes routinelyare…

A: Given data contains, The average weight of orange is 7.2 ounces. Average weight of the boxes is 3.2…

Q: 48. Are these data sets on chemical changes consistent with the law of conservation of mass?(a) A…

A: The law of conservation states that for an isolated system the mass can neither be created nor be…

Q: 13) 16.0 grams of a certain food contain 130 calories. How many grams of this food would you need in…

A:

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: A 9.55g sample of a solid was placed in a 15.00-ml flask. The remaining volume was filled with…

A: Given: Mass of the solid sample= 9.55g Total volume= 15ml The total mass of benzene and sample=19.33…

Q: Carry out the following conversions: 8.75 mm/s to km/hr 60.0 cm/day to inches per hour (lin=0.0254…

A: A method of converting one unit to another unit is unit conversion. A number used to change one unit…

Q: 1. Mg + ip- X+ a 2. Co + H- X+ Co 3. 2U+ in- Kr + Ba + 3 X 235 4. Cr + a- X+ ¿n 5. 200 - 2F + X

A: Question belong to nuclear chemistry. We will balance the chemical reaction according to the rule of…

Q: (*) 0- J kJ 37. mmol · °C ? mol · °C

A:

Q: The lowest temperature recorded in a particular city during the past year was -11.35 °C. What was…

A: Solution Temperature is Associate in Nursing intensive amount and describes the energy of the…

Q: Part A: For calculations involving gaseous systems, it is important to use the kelvin temperature…

A: Part A: Thermometer reading = 221 °C Part B:  Temperature of the gas = 286 K

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A:

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

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Q: On a trip of 834 miles, an automobile consumed 35.5 gallons of gasoline costing $4.25 per gallon.…

A: Given: Miles travelled on a trip = 834 miles Gasoline consumed = 35.5 gallon Cost per gallon = $4.25

Q: 14. The density of lead is 11.34 g/cm. (a) What is the volume, in cm, of 287 g of lead? (b) What is…

A: * Density=  mass / volume              d = m/v Given density of lead = 11.34 g/cm³    1)  mass of…

Q: A new linear temperature scale, degrees Zunzol (∘Z∘Z), is based on the freezing point and boiling…

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Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A:

Q: Wire in the US is “labeled” by a number called a gauge. A 16-gauge wire has a diameter of 0.05082…

A:

Q: 1.77 An Olympic-size pool is 50.0 m long and 25.0 m wide. (a) How many gallons of water (d = 1.0…

A: Q.(77) Answer: 1 gallon = 3.785 litre 1 ft = 30.48 cm Given, length of the pull = 50 m = 50 x 100 cm…

Q: When you see this number: 0.00000123, how do we mathematically and scientifically see this:  a. it…

A: Significant figures refer to the number of digits that are involved in the determination of the…

Q: A density bottle test on a sample of dry soil gave the following results: Mass of 50ml density…

A:

Q: A student obtains the following data:  a- Mass of evaporating dish…

A: Mass of evaporating dish = 21.345g Mass of evaporating dish and saturated NaCl solution= 42.817 g…

Q: The volume of blood plasma in adults is 5.10 L. The density of blood plasma is 1.03 g/cm3. How many…

A:

Q: How to properly use significant figures in this case? Ccal = (-ΔHrxn x nLR)/ΔT Ccal = (-55.85…

A:

Q: 22) The scientific method involves various techniques which allow researchers to investigate…

A: Experimentation is the process  of doing an experiment.  Observations is the process of following…

Q: A pheromone is a type of volatile compound produced by a variety of insect species for chemical…

A:

Q: Q1. The correct conversion expression between degrees °C to K is? A. T(K)=t(°C) + 273.15 C. T(K)=…

A: Given,  The combination of formula/name is correct for the compound is:

Q: When completely filled with water, the beaker and its contents have a total mass of 405.55 g.405.55…

A: In the given question we have to find out the volume of beaker occupied by water then by considering…

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: The molecular weights: Chlorine gas is,Cl2  = 70.9 g/mol Sodium bromide, NaBr = 102.9 g/mol. Sodium…

Q: The lowest temperature recorded in a particular city during the past year was -16.22 C. What was the…

A: Interpretation -  The lowest temperature in the particular city during the past years was -16.22oC…

Q: Measurements: Density of a Saline Solution Data: Record all data with correct units and significant…

A: The mass of saline water is calculated as shown below. mass of saline solution=mass of beaker-Total…

Q: A testing lab wishes to test two experimental brands of outdoor paint to see how long each will last…

A: Mean is also known as average and it is a mathematical term calculated by the given formula. Mean =…

Q: (5) One meter contains how many micrometers? A: 1x 109 B: 1 x 10-9 C: 1 x 10-6 D: 1 x 103 E: 1 x 106

A: 1 Meter contains 1 × 106 micrometres.

Q: 1. MATCHING OF WORDS OR PHRASES 1. Alloys a) example of a derived unit 2. 2H b) allotropes of oxygen…

A: Blanks are filled using the right hand portion of the table.

Q: Density of a Liquid (Methanol) Run I Run II Mass of 10 mL graduate cylinder 18.345 g 18.416 g Volume…

A: Calculation of mass of liquid: Run 1:Mass of liquid=24.446 g-18.345 g…

Q: 6) 292 cm = ? inches 292m 7) 4.42 inches ? m 442rx 8) 254.3 g = ? kg 9) 1257 km ? cm %3D 1257RmX T60…

A: For each of these conversions, we have to use the respective conversion factor to find the answer.…

Q: 1. What pieces of apparatus or equipment are used for measuring: a. Temperature? b. Small amount of…

A: (1) (a) Temperature is measurement of coldness and hotness of a Substance. Usually heat always flow…

Q: use all applicable rules of sig figs and rounding to determine the answers:

A: 0.53 x 12.3 x 1.321 = 14.151 All the non zero numbers are significant figures. so Total significant…

Q: Measurements: Density of a Sa line Solution Data: Record all data with correct units and significant…

A: The percentage yield of a product in a reaction is the percentage of that product obtained compared…

Q: A 100g of water is mixed to 150g of alcohol (ρ = 0.76 g/ cm3 ). Calculate the resulting density of…

A: we know density is defined as the mass of substance upon volume density=massvolume

Q: Liposuction is a cosmetic procedure used to remove excess fat from the abdomen, thigh, or buttocks…

A: Density of a substance can be defined as the mass of that substance present per unit volume. The…

Q: Why are units so important in measurement? Giving examples of measurements with no units should…

A: Unit of measurement is used to define the magnitude of a quantity. Example: length in meter, height…

Q: Ethylene glycol (antifreeze) has a density of 1.11 g/cm. a. What is the mass in g of 417 mL of…

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