How many significant digits is 0.02534? A.2 B.6 C.4 D.5

Q: 6. 1.23 x 10* is equal to A. 0.0000123 B. 0.000123 C. 1.230000 D. 123000 E. 1230000

A: 1.23 × 10-4 is equals to

Q: A student calculated the density of isopropyl alcohol to be 0.688 g/mL. The accepted density for…

A: Given data: Experimental density value = 0.688 g/mL, Accepted density value = 0.786 g/mL. The…

Q: 22. The melting point of copper is known to be 1984 °F. Represent the temperature in Kelvin (K) and…

A: This question is related to conversion of units. Fahrenheit (°F), celcius (°C) and Kelvin (K) are…

Q: 6. Round each number to 3 sig figs: a. 1234 b. 0.023 c. 890 d. 1090.0010

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Q: Time, s [A ], M

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Q: Round 329.2258 to 2 significant digits

A: Significant figures are meaningful digits which are known with certainty. There are certain rules…

Q: 1.The literature for a pharmaceutical product states that 26 patients of the 2, 103 enrolled in the…

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

Q: 5. When do zeros count as significant digits, and when don’tthey count?

A: The significance of zeros in a mathematical value has to be given.

Q: I need help with these question please

A: 1 inch = 2.54 cm 1 cm = 10 mm 1 mm = 10-3 m

Q: 55R) The density of lead is 11.4 g/cm3. The mass of a lead ball with a radius of 0.50 mm is g. 4nr.…

A: Using the relation  Mass = density * volume .                           We can find mass of lead…

Q: 17. Explain why units are important in calculations.

A: Units can act as a guide in a calculation and are ready to show if the calculation is off track.…

Q: Natural gas is mostly methane, a substance that boils at a temperature of 109 K. (a) What is its…

A: Given  Boiling point  = 107 K  Boiling point in °C = ?  Boiling point in °F  = ?

Q: Co(T) =C + 1x10³.C.T + 1x10°.C3.T? + 1x10°.C4.T? T1 Cp dT T 298 Remember that S= S98 + %3D

A:

Q: C3S2 express your answer in atomic mass units to two decimal places

A: Calculation for molar mass of C3S2:

Q: A box contains a mixture of small copper spheres and small lead spheres. The total volume of both…

A: Given that:                         Total volume of the both metal spheres = 427 cm³…

Q: 21. a. A liquid has a volume of 10.95 mL and a mass of 75 g. Calculate the density of the liquid.…

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Q: One cubic meter 1 m³ of aluminum has a mass of 2.70×10³ kg.and 1 m³ of iron has a mass of 7.86×10³…

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Q: How do I round 199.887 to thrtee decimal places?

A: Welcome to bartleby ! We have to round off to three decimal place .

Q: What number is represented by each of these names?   a. score b. decade c. bloit

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: Use the References to access important values if needed for this question a. When 71.292 and 66.15…

A: There are rules for addition, substraction, division and multiplication for significant figures.  In…

Q: The density of mercury is 13.6 g/mL. Comment on how the density of mercury could cause environmental…

A: Here we have to comment how the density of mercury could cause environmental problems-

Q: Calculate the density of a spherical metal, in with a diameter of 4.77 in and a ст- mass of 2.41…

A: Given: Diameter of spherical metal = 4.77 in Or diameter of spherical metal = 4.77 × 2.54 cm Or…

Q: I wants to know the formula Of density measure

A: Density = Mass of substanceVolume of substance

Q: A sample containing 33.42 g of metal pellets is poured into graduated cylinder and initially…

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Q: baseball is thrown from center field to second base and its velocity changes from 15m/s to 10m/s. s…

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Q: Convert -52.63 °C to k. Provide the answer with two decimals, and units.    Answer:? Units:?

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Q: 27 A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 10' g. Use this information to…

A: Consider the given information is as follows; Mass of brick = 4.0 kg Mass of earth = 6.0×1027 g…

Q: Perform each unit conversion.a. 28.9 nm to mm                     b. 1432 cm3 to L                c.…

A: Given conversions,       a. 28.9 nm to mm                            b. 1432 cm3 to L…

Q: What is 7.13 inches converted to meters?   Recall that 2.54 cm = 1 in

A:

Q: A student experimentally determines the density of a metal cube. The edge length of the cube is…

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Q: A student performed the same experiment as you. The following data was recorded in their lab…

A: We know that PV = nRT P= Pressure V = Volume n = No of moles T = Temperature

Q: 16. A mixture is made by adding 20.42 g of substance A, 1.322 g of substance B, and 83.1 g of…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If the mass of an empty 9.7 ml pycometer is 10.1 nd the mass of the same pycometer with an unknown…

A:

Q: Mercury is traded by the “flask,” a unit that has a mass of 34.5 kg. Determine the volume of a flask…

A: Any solution's density exhibits the available mass of particular substance/compound into unit…

Q: A 50 mL beaker has a mass of 42.503g find the mass in dg

A: Mass of 42.503g find the mass in dg

Q: What is the only way to reduce random error in measurements?

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Pitt A 0120 x Goog x b Answe x in (27) A X Bio Micro Chem II A Asses X Pt Perioc X ali 1030 x E chem…

A:

Q: Round 19,320.411 to 3 significant figures. Please express in decimal form, not scientific notation.

A: The rules for the significant figure are: Numbers other than zero with a decimal point are…

Q: A bird flies 55 km, 30° north of east. What is its displacement along east and along north.…

A: This question belongs to basic mathematics. We will draw diagram according to the given information…

Q: A α 1/B means: A. A is directly proportional to B B. A is inversely proportional to B C. None of…

A: In the given question we have to define the following notation.          A  ∝  (1/B)  this means the…

Q: 24R) The density of silver is 10.5 g/cm3. A piece of silver with a mass of 61.3 g would occupy a…

A: The formula for density is   Density = mass / volume. In above formula with known values of any two…

Q: A piece of indium with a mass of 21.93 g is submerged in 46.3 cm3 of water in a graduated cylinder.…

A: Given,Volume of water without indium piece = 46.3 cm3Volume of water with indium piece = 49.3 cm3∴…

Q: What temperature (in Kelvin) is a temperature of 51.67°C?

A: Unit of temperature can be in the kelvin , degree celcius or degree fahrenheit. Given that:…

Q: use data to discuss whichc calculated density is more accurate.

A: Density is obtained by dividing mass by volume Density(d) = mass(m)Volume(v) => m = d*v (or) v =…

Q: a 10ml graduated cylinder has a height of 7.12 inches. height in feet how to work this problem out

A: Given : height of cylinder in inches = 7.12

Q: 1. Convert 159 cubic micrometers, μm3 to cubic meters, m3

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Q: current is measure as 0.00007 A/cm2 unit area in units of mdd.

A: Zinc is the d-block element.  the symbol for Zinc is Zn.  Corrosion is a natural process and it…

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.