You weigh a crucible empty to be 44.181 g. You add Mg and weigh the crucible and Mg together to be 44.421 g. How many significant figures are there in the mass of the Mg?

Q: Name the SI base units that are important in chemistry,and give the SI units for expressing the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3 sub-parts. Please resubmit the…

Q: Express your answers to at least 5 significant figures.  The mass of one mole of boron is 10.811 g.…

A: Using mole concept easily determines number of atoms and molecules present in one mole of substance.

Q: The radius of an atom of gold (Au) is about 1.35 Å. Part A: Express this distance in nanometers…

A: Radius of

Q: Ocean water contains 3.3 %% NaClNaCl by mass. What mass of ocean water in grams contains 43.8 gg of…

A: Mass percent of NaCl = 3.3 %

Q: Take the mass measurement with nitrogen (28 dalton or atomic mass units per molecule) and the mass…

A:

Q: What is the maximum mass of pure lead that could be extracted from 195. g of galena, a lead ore with…

A: Formula of galena = PbS Mass of Galena = 195.0 g Molar mass of Galena = 239.3 g/mol Mass of pure…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg; (Si,O3), (OH), An…

A: Given the chemical formula: Mg3Si2O52(OH)2 So, there are 3 mol Mg per 1 mol of Mg3Si2O52(OH)2 And,…

Q: Calculate the mass of camphor C10H16O  that contains a trillion  ×1.01012  carbon atoms.

A: Number of carbon atoms = 1.0 x 10 12 atoms

Q: A concentration solution of hydrochloric acid has a concentration of 1.202 (± 0.005) M. If 14.00 (±…

A:

Q: (A)18.7g NO2 express your answer in moles to three significant figures.  (B)1.88 kgCO2  express…

A: Answers are in step 2

Q: What is the mass of 0.207 moles of C3H9O4? Note: Express your answer in proper significant figures.…

A: Given, moles of C8H9O4 = 0.207 mol mass of 0.207 moles of C8H9O4 = ? Note: molar mass of C8H9O4 =…

Q: In a 1.196E2 g sample of iron(III) oxide, how many grams of iron are present

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Q: 5. Given your experience in mass determinations and with volumetric glassware, which factor used -…

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Q: 1) SAMPLE MASSES: X, Mass of sample (g) = Y, Mass of benzoic acid (g) = Z. Mass of pellet (g) = Ms.…

A: Given that,Mass of sample (X) = 0.7 gMass of benzoic acid (Y) = 0.3 gMass of pellet (Z) = 0.9 g

Q: n an experiment of production of aluminum hydroxide Al(OH)3 by reacting AlCl3 with NaOH, the student…

A: Precision is the closeness to the each reading taken in an experiment. Accuracy is the closeness…

Q: 2. The picture in the introduction shows that the mass of a crucible and lid was determined to be…

A: Given,  The mass of Crucible and lid = 22.1504 g.  The mass of crucible and lid  and hydrate =…

Q: The volume of a metal bar can be determined by immersing it in water in a graduated cylinder and…

A:

Q: A student reported the mass of ten glass beads as 2.507 ± 0.015 g. What should the student report as…

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Q: Copper:(a) Suppose you have a cube of copper metal that is 0.236 cm on a side with a mass of0.1206…

A: a) The number of atoms and fraction of cube filled in the atoms has to be calculated and the reason…

Q: A sphere of pure iron metal contains 9.57 X 10^24 Fe atoms. What is the radius of the sphere in…

A:

Q: (CH,(CH,),CH;) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and…

A:

Q: Calculate the mass of scheelite CaWO4 that contains a billion ×1.0109 oxygen atoms. Be sure your…

A:

Q: mass

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Q: Suppose now that you wanted to determine the density of a small crystal to confirm that it is…

A: total volume = 20.0 mL volume of CHCl3 = x volume of CHBr3 = 20 - x total mass = 20 x 2.07 = 41.4 g…

Q: Gaseous ethane (CH,CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,)…

A: Given  Mass of ethane  = 0.601 gram  Mass of Oxygen = 2.9 gram  Mass of water    =   ?

Q: The volume of a metal bar can be determined by immersing it in water in a graduated cylinder and…

A: Density of a substance is given by  Rearranging it becomes and density=

Q: tablet of Mylanta antacid contains 0.300 g Mg(OH)2 and 0.200 g Al(OH)3. For the blanks in this…

A: Mass of Mg(OH)2 = 0.300 g  Mass of Al(OH)3 = 0.200 g

Q: I think I did a calculation wrong but I am having trouble understanding significant figures. In…

A: Significant figures: These are the digits of a number that are useful in terms of accuracy and…

Q: 3) A technique once used by geologists to measure the density of a mineral is to mix two dense…

A:

Q: How many grams F in 511.9 g Br2F6?    Put the answer in the box in regular (non-scientific)…

A: Given: Mass of Br2F6 is 511.9 g and we know that the molar mass of Br2F6 is 273.7984 g/mol

Q: How many grams Fin 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A:

Q: Two students were tasked to weigh 100 mg of sodium chloride (NaCl). Student A pressed the tare…

A: The given data contains, mass of weighing paper = 0.0011 g. mass of weighing paper plus NaCl is…

Q: If a sample of gold alloy has a mass of 87.7 g and is 78.3% gold by mass, what percentage of the…

A: An alloy of gold which contains gold and any other metals Mass of alloy = 87.7 g  % by mass of gold…

Q: A solution of F− is prepared by dissolving 0.0944±0.0006 g NaF (molar mass = 41.989±0.001 g/mol) in…

A: Concentration of a given solution can be represented in the form of molarity, molality or normality.…

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.