What is the number of significant figures does the sum of the following contain   + 5.652 , the answer is …………….     0.3 + 5.652 , the answer is ………………

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km. Suppose a…

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Q: The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure…

A: Density of an object is the amount of mass the object has in a given volume of that object. If the…

Q: An empty Erlenmeyer flask weighs 241.3 g. When filled with water (d 5 1.00 g/cm3), the flask and its…

A: Given: Mass of the empty Erlenmeyer flask= 241.3g Density of water = 1.00 g/cm3 Mass of flask filled…

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

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Q: 2. As part of the process in the production of a perfume, a certain substance with water is…

A: It follows first order kinetics.  So, ln(a0/at) = kt  Or, k = (1/t)ln(a0/at) .....(1)  Here, a0 = 75…

Q: C6H15N Express your answer in atomic mass units to two decimal places . KMnO4 Express your answer…

A: Calculation for molar mass of C6H15N: molar mass of C6H15N = (6×12.0107+15×1.0078+1×14.0067) molar…

Q: How do I include units into my slope intercept Units - g mL 1. Y=1.2534x+0.0250 Answer- Y=1.2534x (…

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Q: A Canadian, driving in the U.S.A., fuels their car at a cost of US$3.74 per gallon (US).The current…

A: Amount of the car fuel can be calculated as given below:

Q: Use the References to access important values if needed for A sample of volume 244 cm has a mass of…

A: Mass = 1.04 Kg = 1040 g Volume = 244 cm3 Density = ?

Q: The diameter of a DNA alpha helix is about 8 ✕ 10−8 in. What is its diameter in centimeters?

A: Given: Diameter of DNA α helix= 8×10-8 inWe need to find diameter in cm

Q: The quantitative significance of “take a deep breath" varies, of course, with the individual. When…

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Q: Counting by weighing" is used in other applications besides chemistry. A hardware store, for…

A: We are Given that :-  Hardware sells nails in package of 500. Office supply store sells 100 paper…

Q: What mass of solid lead would displace exactly 234.6 liters of water? Given that lead has a density…

A: Unit of volume and density is converted as follows:

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: For calculating the density of the unknown metal sample, we need its mass and volume.

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: A pycnometer is an apparatus that can be used to determine the density of an insoluble solid by…

Q: 4. Given the schematic notation: Cu | Cu (0.0200 M) | Ag le

A: Cell notation  At anode : oxidation Cu (s)  ------> Cu2+ ( aq) + 2e-        E°( Cu2+/ Cu) = 0.34…

Q: 3. A student forgot to pre-measure the mass of the second evaporating dish prior to decanting the…

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

Q: On the molecular level, what does it mean for a solid sample to be pure?

A: Applying concept of pure solid / substance via molecular basis explanation.

Q: Question attached

A: The given data contains, Density of water =1.000g/cm3 Mass of clean pycnometer =25.151 g Mass of…

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

A: Molar mass of C17H35COOH = 284.52 Mass of all C = 12.01 ×18                     = 216.18 %C by mass…

Q: Given the data below, calculate the mass of copper in the original sample. Mass of original sample…

A: Given that : Mass of original sample = 2.5429 g Mass of filter paper = 0.5662 g Mass of paper cup =…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: In order to find the density of the unknown metal alloy sample, we have to find the mass of the…

Q: A chemist has a sample of hydrated alum powder KAI(SO,), it weighs 3.200 grams. She heats it…

A: The amount of KAl(SO4)2 originally present is equal to the amount of anhydrous compound i.e. 1.741…

Q: Obtain values from the pictures found in the procedure to complete the data table below. Remember to…

A: Solution :      Conversion of cg to g :               In this case, our conversion factor is 0.01.…

Q: 8) The vessel to be weighed should be placed of the pan. (off to the side, or in the center) 9)…

A: 8. The vessel to be weighed should be placed in the center of the pan.  For proper weighing, vessel…

Q: On the molecular level, what does it mean for a solid sample to be pure?

A: As per bartleby guidelines i answered only first question so please don't mind thanks in advance.

Q: is this correct, especially questions 3 and 7 on the second page. THANKS :)

A: 3) According to the question the weight of empty flask and stopper is 34.232 g. The weight of flask,…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: The ratio of mass to the volume is known as density.

Q: Evaluate the manager’s calculations with regard to significant digits. If necessary, rewrite any…

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Q: You record the following data during the Qualitative and Quantitative Characterization of Aspirin…

A: A numerical problem based on concentration terms, which is to be accomplished.

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: What number is 5.12234 E1 in standard form?

A:

Q: Given: Density @23°C = 0.99755 g / mL Total volume Mass of Mass flask Mass of True volume Correction…

A: The data given is,

Q: m. How many times can you divide evenly a 893.4 cm long piece of copper wire until it is reduced to…

A: Given : The radius of copper atom = 1.3×10-10 To find : Number of evenly cuts or number of times.…

Q: what is the mass of calcium carbonate reacted?

A: Given, Mass of marble before reaction 3.0g Mass of marble after reaction 1.8g

Q: compounds. Then, a major shift happened. How did chemists increase the rate of discovery of the…

A: Antoine Lavoisier first one who tried to group the elements as metals and nonmetals. Then Wolfang…

Q: 1 What is chemistry? A. The study of composition of matter. B. The study of the behavior of matter…

A: Chemistry is the branch of science that deals with matter's composition and properties. Hence option…

Q: A ______________________is the physical combining of two or more substances (not necessarily…

A:

Q: 1. XY,(aq) + T(s) –– > TX(s) + Y(s)

A: Given: A chemical reaction.  To find : Balanced chemical equation and type of reaction.  Solution :…

Q: For calculating density(d=m/v) , does the mass include the mass of the cylinder before the substance…

A: Density of any substance is defined as the mass of substance present per unit of its volume. Hence…

Q: 6. An empty Erlenmeyer flask weighs 241.3 g. When filled with water (d = 1.00 g/cm³), the flask and…

A:

Q: Complete the following table Material Mass of Displaced Water (g) Mass of Sample (g) Volume of…

A: Given data: Material Mass of Displaced water (g) Mass of sample (g) Volume of Sample (mL) Density…

Q: ? 239 94 Ри + 96 X + ¿n

A:

Q: Density = Mass /volume                63.7410g/…

A: Yes density is the ratio of mass and volume  Mass can be taken in grams , kilograms  and milligrams…

Q: A construction team gives an estimate of three months to repave a large stretch of a very busy road…

A: In chemistry there are many ways to check the deviation of experimental data from the accurate…

Q: CP- YY - Convert 18.8 TM³ to ZW 3 1 TM = 7.108 DD, using the following equalities: 1 CP = 2.104 BX,…

A: The given value is: 18.8 CP2TM3, and we have to convert the above value to the unit, YY2ZW3.

Q: Enter your answer in the provided box. The radius of a copper (Cu) atom is roughly 1.3 ×10−10 m. How…

A: Number of atoms in given piece of copper wire is calculated as,

Q: fter performing precipitation gravimetry, Asta placed the weighing form inside the crucible, heated…

A: To determine the value of mass that should be used for the calculations after performing…