Use decimal notation to express 4.22 mg in grams?

Q: Which weighs more: a 1.00-cm cube of ice or 1.00 cm³ of water?

A: Given : Volume of ice = 1.00 cm3 Volume of water = 1.00 cm3

Q: mass= 10.0 g; volume= 6.37 mlcalculate the density in grams per milliliters

A: Formuladensity = mass (g)/volume (ml)Given,mass = 10.0 gvolume = 6.37 mlSo,density = 10.0 g/6.37 ml…

Q: How many miligrams are in 612 grams?

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Q: The correct decimal representation of 6.453 * 103 is?

A: Scientific notation: Scientific notation is a way of expressing numbers to be conveniently written…

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: if i have to supply the missing information for this conversion factor what would the answer be?…

A: The amount of matter present in a substance is known as its mass. It is the measure of actual…

Q: Calculate (2.075 x 0.585)/(8.42 x 0.0045) Correct the answer by rounding off the number to the…

A: Significant Numbers are those numbers or digits in the given number which are used in mathematical…

Q: What is the numerical value of a conversion factor ?why must this be true ?

A: Numerical value of a conversion factor is answered in the next step.

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: How should units be treated in calculations?

A: The SI system, also called the metric system, is used around the world. There are seven basic units…

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

A: • The values provided in the question are:-       i) Mass of substance A = 20.42 g    ii) Mass of…

Q: 250 centigrams (cg) = ______ grams (g)

A:

Q: What conversion factor is appropriate to convert 862 mm Hg to in Hg (inches of mercury)?

A: Conversion of mm Hg to in Hg

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: 0.0187 L to milliliters (p

A: As we know,  1 L = 1000 mL = 1000 milliliter  So, 0.0187 L × 1000 milliliters/1 L = 18.7 milliliters…

Q: Use exponential notation to express 4.22 mg in grams

A: Conversions: 1 gm = 1000 mg 1mg = 10-3 g.

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: Which answer represents the measurement 0.00569 g rounded to two significant figures?

A: Rules to rounding significant figures :- 1) " If the rightmost digit to be removed is  >5 then…

Q: chemist prepares a solution of sodium carbonate (Na, CO, by weighing out 62.1 g of sodium carbonate…

A: We have given that Mass of Na2CO3 = 62.1 grams Volume of volumetric flask = 300mL  i.e.…

Q: What is the meaning of the number of digits reported in a measured quantity?

A:

Q: How many siginificant figures in 3.14x10^23?

A: Solution Significant figures ar any non-zero digits or at bay zeros. they are doing not embrace…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: 91.23 g to mg

A: Given: Value in g = 91.23 g.

Q: When multiplying or dividing measured quantities, what determines the number of significant figures…

A: The significant figures of a number written in positional notation are digits that carry meaningful…

Q: (3.0 mg) x (0.023 g) =

A: The given milligrams can be converted into grams as

Q: volume in m

A:

Q: Solve this equation with the appropriate significant figures. 181.34 x 1930.4582 =

A: The given equation is - - - > 181.34 x 1930.4582 = 350069.289988 =350070

Q: Express (7.64x10^5) g in SI base units using scientific notation.

A: For the base quantities like temperature, mass, length, time and etc, the international system of…

Q: t volume in

A:

Q: A chemist adds 875.0 mL of a 12.8 g/dL sodium chloride (NaCI) solution to a flask. Calculate the…

A: Given :-  Volume of NaCl solution = 875.0 mL  Density of solution = 12.8 g/dL  To calculate :-…

Q: The number 7.134×10^7in normal decimal notation is?

A: Basic rules to convert scientific notation into decimal notation :If the exponent is positive, move…

Q: When adding or subtracting measured quantities, what determines the number of significant figures in…

A: The result of an addition or subtraction should be reported to the same number of decimal places as…

Q: of significant figures in

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Q: How many significant figures are in the number 1360?

A: Given number is, 1360

Q: 2896 ng to mg

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Q: 15.90 mL of water? (1 ounce = 28.3 g)

A: C) 27.76 mL

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: v milliliters c

A:

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

A: Here we need to convert millimoles into mole.Moles = It is a unit (used in chemistry) for measuring…

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

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

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Q: How many significant figures does 31.03 g + 12 mg has?

A: First convert 12mg into g by multipy 10-3 So 12mg=0.012g 31.03+0.012= 31.042 So minimum 2…

Q: Convert (5.252x10^2) °C to k

A: Conversion of Celsius to Kelvin can be done by adding 273.15 .   The solution is given below-

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: One liter ( abbreviated L) is the volume of a box that is 1dm on each side. How long is the side of…

A: 10 dm= 1m⇒ 1 dm= 110m =0.1 m

Q: A chemist prepares a solution of barium chloride (BaCl,) by weighing out 9.759 g of barium chloride…

A:

Q: number of significant figures and units.

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.