convert 275 millimoles into moles(give the answer in the correct number of significant figures)

Q: A chemist determined by measurements that 0.040 moles of sodium participated in a chemical reaction.…

A: Consider the given information is as follow: Moles of sodium participated = 0.040 mol…

Q: How many miligrams are in 612 grams?

A:

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.

Q: What is the mass in grams of 0.485 moles of barium (Ba)? Enter your answer in decimal form with…

A:

Q: how many grams are in 11 kilograms and how many millilters are in a 0.076 liters?

A: It looks like there are two parts in the question. Please find the solution below,Part a:  How many…

Q: How many mg are there in 1 mg?

A: Milligram: is a  unit of measurement of mass in the metric system which is equal to a thousandth of…

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

A: First of all we need to determine the limiting reagent. The reagent which is present in limited…

Q: Calculate the mass of NH3 (in grams) in 5.6x10^24 hydrogen atoms. Give your answer in decimal places…

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Q: A student measures out a 50.3 g sample of sodium hydroxide. What is this mass in kilograms (kg)?

A:

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 470. g of iron(II)…

A: Given: mass of FeBr2 = 470 g volume of flask, V=450 mL                             =0.450 L We know…

Q: A beaker has a mass of 225.08g . When a liquid is added to the beaker, the combined mass is…

A:

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 prepares a solution of iron(III) bromide (FeBr,) by measuring out 79. umol of iron(III)…

A: Molarity of solution is defined as, moles of solute present per liter of solution.

Q: Convert 7.5 milliliters to kiloliters.

A: Solution When you structure an answer within the laboratory you may in all probability live the…

Q: A chemist determines by measurements that 0.075 moles of bromine liquid participate in a chemical…

A: Given value -  Moles of Br2 = 0.075 moles, Molar mass = 159.808 g mol-1  Then,

Q: Write the numbers represented by the following prefixes: (a) mega-, (b) kilo-, (c) deci-, (d)…

A: Hi, since you have posted questions that has multiple subparts. We will answer the first three…

Q: 0.007 decigrams is equal to how many micrograms?

A: 0.007 decigrams is equal to how many micrograms has to be given.

Q: A major component of gasoline is octane (CgH18). When liquid octane is burned in air it reacts with…

A: Octane reacts with oxygen to produce CO2 and water. 2C8H18 +25 O2→16CO2 +18 H2O

Q: A major component of gasoline is octane (C3H18). When liquid octane is burned in air it reacts with…

A:

Q: Balance the following chemical reaction: NH3 + 02 --> N2 + H20 Answers or coefficients are whole…

A: We have to predict the balance chemical reaction.

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by measuring out 11. umol of nickel(II)…

A: The concentration of a solution is determined by the amount of solute dissolved in the solution. For…

Q: A chemist prepares a solution of barium chloride (BaCl2) by measuring out 40.g of barium chloride…

A: Given,Mass of barium chloride = 40g.Volume of water = 350mL.The moles of barium chloride can be…

Q: how many grams are in 370 milligrams?

A: Given: Mass = 370 mg

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical…

A: Given,  Moles of hydrogen gas participate = 0.035 mol.  The mass of hydrogen gas participate is:

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

A: Number of moles is defined as given mass divided by molecular mass.

Q: A chemist determines by measurements that 0.0800 moles of fluorine gas participate in a chemical…

A:

Q: How many moles of Ca are there in 913 grams? Answer in decimal notation, without units, to 3…

A: • The values provided in the question are:-    i) Mass of Calcium = 913 g  ii) Molar mass of…

Q: How many milliliters are in 7.55 x 10-3 decaliters?

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Q: What is the mass of in carats of a Diamond measuring in 2.8 ml

A: Density is a physical quantity that is defined as mass of substance per unit volume of that…

Q: A major component of gasoline is octane C8H18. When liquid octane is burned in air it reacts with…

A: In the presence of oxygen gas when the liquid octane is burnt, it produces carbon dioxide gas and…

Q: 2896 ng to mg

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Q: A chemist determines by measurements that 0.0700 moles of chlorine gas participate in a chemical…

A:

Q: Convert (7.8x10^24) molecules of sodium chloride, NaCl (OR N a C l) to grams of sodium chloride.…

A:

Q: What is the mass of your 50-mL beaker in kilograms?

A: Unit of mass of 50-mL beaker is converted to grams:

Q: v milliliters c

A:

Q: Calculate the mass in grams of 13.0 mol of copper(I) sulfate. Enter your answer in scientific…

A:

Q: A major component of gasoline is octane (C3H18). When liquid octane is burned in air it reacts with…

A: The compound given is octane i.e C8H18. And the moles of CO2 to be produced = 0.065 mol.

Q: A chemist measures the amount of nitrogen gas produced during an experiment. He finds that 2.78 g of…

A:

Q: A major component of gasoline is octane C8H18 . When liquid octane is burned in air it reacts with…

A: Given data:

Q: How many mL of 0.888 molar magnesium chloride must a scientist pour into a beaker to have 19.0 g of…

A:

Q: How many grams are needed to prepare a 5,067 g of CaCl2 of 6 % solution? (Type your answer with the…

A:

Q: A major component of gasoline is octane C8H18 . When liquid octane is burned in air it reacts with…

A: The balanced chemical equation for the combustion of octane is,C8H18(l) + 25/2O2(g) → 8CO2 + 9H2O(g)

Q: How many mL of 0.799 molar magnesium chloride must a scientist pour into a beaker to have 16.1 g of…

A: given, molarity of magnesium chloride = 0.799 molar weight of magnesium chloride = 16.1 g

Q: A 195 mL sample of ocean water contains 7.0 gg of NaCl. What is the molarity of the solution with…

A: Given,  Mass of NaCl in ocean water= 7.0g Volume of ocean water = 195 mL Molarity of NaCl solution…

Q: what is the volume in milliliters of 1.0 pints of cream?

A: Pint is termed as unit of capacity (volume) that is generally categorized under "imperial (568 mL)"…

Q: What is the mass of 3.90 x 1021 formula units of KBr? Answer in standard notation to three…

A: What is the mass of 3.90 x 1021 formula units of KBr?

Q: How many milligrams of arsenic would be a typical amount in a 60.-kg adult? Express the mass as an…

A: Minerals are vital for building the new tissues, muscle contraction, the transmission of nerve…

Q: A major component of gasoline is octane C8H18 . When liquid octane is burned in air it reacts with…

A:

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.