In this section, he quickly converts the number measured from grams to milligrams. 0.0015g x 1000mg (1g ) =1.5mg How many mg are there in 0.1254g? O 1254mg 125.4mg

Q: . The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8…

A: Given: Density of water = 0.967 g/mL. Volume of water = 499.8 mL.

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A: Given that, 50.0 g sample of NH3. We have to calculate the number of hydrogen atoms in this sample.

Q: Calculate the number of hydrogen atoms in a 100.0 g sample of ammonia (NH,). Be sure your answer has…

A: One mole of any molecule contains approximatly 6.022 x 1023 (Avogadro's number) molecules. And the…

Q: (5 Sulfuric acid (0.45M) (8T.5 ml) Copper ( hydroxide (1.15M) (15:5ml) Copper () sulfate ? grams H2O

A: Number of moles = mass/molar mass  Mass = moles × molar mass  Molarity = moles/volume of solution…

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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 %

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Q: When you perform the following operations, how many significant figures should your answer have?…

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Q: The length of a 262 mm line can also be expressed as: (choose one of the choices) Hint: you must…

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Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: Given: Density = 0.967 g/mL Volume = 499.8 mL The Mass of water =   Density of water x volume Mass…

Q: A chemist adds  925.0mL  of a  /0.00469gL  copper(II) fluoride  CuF2  solution to a flask.…

A:

Q: An atom of a particular element has a volume of 7.8 x 10-31 m3. What is this volume in cubic…

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Q: How many mL of (5.0300x10^0) M NaNO3 would be needed in a dilution experiment to make (8.56x10^2) mL…

A: Given-> Initial molarity (M1) = 5.0300 ×100M Final molarity (M2) = 2.3400 ×100 M Final volume…

Q: A metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5 in x 8.5 in x…

A: first we have to find the volume, volume=length ×width ×height  then we know, density=mass/volume…

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

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Q: Calculate the number of oxygen atoms in a 50.0 g sample of iron(III) oxide (Fe,0,). Be sure your…

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Q: The concentration of carbon monoxide in an urban apartmentis 48 mg>m3. What mass of carbon…

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Q: What is the mass percent of magnesium chloride in a 225.0 g solution made with 44.32 g of magnesium…

A: The mass percent of magnesium chloride present in the solution can be determined by using the…

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Q: An antacid tablet weighing 0.938 g contained calcium carbonate as the active ingredient, in addition…

A: We know that, according to the law of conservation of mass in a chemical reaction, the mass of the…

Q: A 46.60-gram pycnometer was filled with 100.50 grams of liquid. When filled with insoluble powder,…

A:

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: When you perform the following operations, how many significant figures should your answer have?…

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Q: You wish to prepare 211 grams of 16.6 % Mg(CH3COO),. . You will need grams of magnesium acetate and…

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Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Solution - According to this question - Given - Formula - no of mole = molarity x volume thus, no of…

Q: How many grams of iron (density = 7.87 g/mL) would occupy the same volume as 96.4 g of aluminum…

A: We know that : density, d = Mass, m/Volume, V  Or, d = m/V  Or, V = m/d ...(1)  In case of Al, m =…

Q: What answer should be reported, with the correct number of significant figures, for the following…

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Q: Someone invents a new unit of measurement called a musk and defines that 5 mu equal to exactly 10-7…

A: In the given question we have to convert  the gram in musk unit measurement, the given measurement…

Q: The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x…

A: The volume of the room is calculated as following,

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot with the dimensions of…

A:

Q: 10. When an irregularly shaped solid of mass 105 g was placed in a cylinder that contained 25.00 ml…

A: The volume of the water displaced by the body in the cylindrical tub is equal to the volume of the…

Q: Drag conversion units onto the boxes in the equation to make conversions. Some boxes can be left…

A: From given With the given conversions atoms is converted to liters as follows

Q: Use the algebraic equation to determine the mass if the volume was 622 mL.  mass (g) = (3.60…

A: Given, mass (g) = (3.60 g/mL)(volume (mL)) + 11.4 g y= mass (g) m = 3.60 g/mL x= 622 mL b = 11.4 g

Q: What is the mass in grams of 8.91x 1016 chromium atoms?

A: Given :-  number of Cr atoms = 8.91 × 1016 atoms  To be calculated :-  mass of Cr (in grams)

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A:

Q: Consider Ben Franklin used one teaspoon of oil and if one teaspoon = 5.0 cm3and the area covered by…

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Q: 8.930 12.2mL Metal C 3 sig fig 3. Calculate the mass in grams of a 525 cm³ block of lead. 1. 525…

A: Given, Volume of lead block = 525cm3. Density of lead = 11.342g/cm3.

Q: What is the equivalent volume in milliliters taken up by 9 gr boric acid powder if the density of…

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Q: The concentration of carbon monoxide in an urban apartment is 48 µg/m°. What mass of carbon monoxide…

A: Concentration of CO = 48 µg / m3 or 48 × 10-6 gm/m3 Volume of room = 12 × 12.5 × 21.5 ft. 1 Feet =…

Q: When you perform the following operations, how many signifcant figures should your answer have?…

A: Addition of significant figures :- The answer of addition should be rounded to the same number of…

Q: You need 8 different masses in the range of 2.50 to 7.00 grams they need to be spread out as evenly…

A: Given: lower range = 2.50 g Upper range = 7.00 g number of masses (n) = 8 common difference = d

Q: 5. The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8…

A: Given: Density of water = 0.967 g/mL. And the volume of water = 499.8 mL

Q: What is the volume of 12.0 grams of an alcohol whose density is 0.920 g/mL?

A: Since density is defined as the mass of compound per volume of the compound Hence density = mass /…

Q: 267 grams is the same as ___ milligrams. 0.267 267,000 2,67 26,700 0.00267

A: Hello dear welcome on bartleby;   The correct answer is 267,000

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Q: Ultrapure silver is used to make solid state devices such as computer chips. What is the mass in…

A: Given: density of silver = 10.50 g/cm3 radius of cylinder = 3.50 cm length of cylinder = 12.40 cm

Q: How many moles are there in 1.0 g of the element Al? Your answer must contain the correct number of…

A: Moles can be expressed as the ratio of mass of the solute to the molar/atomic mass of solute. i.e.…

Q: What is the mass in grams of 1.37 × 1016 chromium atoms?

A:

Q: 1 mol Nacl 58.44 g NaCl) 1L 0.502 g Nacl 11.74 mL 1000 mL)

A: What is value of the given expression--