ow many gigagrams are there in 5.66×108 milligrams? Your answer should not be in scientific notation, should not include your final unit, and should be written with 3 significant figures

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

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Q: Aqueous hydrochloric acid  HCl  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: The balanced chemical equation for given reaction is as follows,

Q: A chemist must dilute 89.2 mL of 407. mM aqueous potassium dichromate (K₂Cr₂O₂) solution until the…

A: As we know,Moles the solute remains same on dilution but volume of the solution increases.Dilution…

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: Please answer this question as fast as you can please and tahnk you. I will afterwards write an…

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Q: Perform the following calculation. Round your answer according to the correct number of significant…

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Q: Evaluate the expression and report the answer to the proper number of significant figures. log (9.9…

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Q: Express the following in SI base units using scientific notation (e.g., 1.45 mm = 1.45 × 10-3 m):…

A: Given : 432 kg

Q: Express each answer with the correct significant digits, and the proper units AND write it in…

A: The expression given is .

Q: How many cubic centimeters are there in 8.14 yd^3 Express the volume in cubic centimeters to three…

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Q: Suppose you measure out 2.56 x 1024 molecules of water on the balance. If the cup containing the…

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

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

Q: Consider the equation: (9 x 10^-38) x (9.00 x 10^3) x 35.3= Y  how many significant figures should Y…

A: The significant figures can be defined as the digits in the given number that carry some meaning and…

Q: Calculate the number of hydrogen atoms in a 70.0 g sample of ammonia (NH3). Be sure your answer has…

A: Given: Mass of NH3 is 70.0 g Molar mass of NH3  is 17 g/mol Atoms in 1 mole is 6.022×1023  To find:…

Q: If the radius of the sun is 7.001×105  km, what is the average density of the sun in units of grams…

A: Density can be calculated as: Density=MassVolume

Q: Place the following metric prefixes in order from the smallest value to the largest value: deci,…

A: To place the metric prefix in smallest value to the largest value, deci, kilo, centi, micro, mega,…

Q: Carry out the following calculations, making sure that your answer has the correct number of…

A: Given that, 8.69 mL ÷ (15.3 mL - 8.94 mL) We have to calculate and result should have correct…

Q: A piece of cardboard is 12.0 cm long and 6.3 cm wide. What is the area of this piece of cardboard in…

A: Given,A piece of cardboard is 12.0 cm long and 6.3 cm wide.

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: TV waves travel at the speed of light (“c”), roughly 3.00 x 108 m/s. How long does it take for a Tv…

A: Given: Speed of TV wave=Speed of light (“c”)= 3.00 x 108 m/s. Distance between the edge of our solar…

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 mass of a uranium atom is 3.9526 × 10-22 grams. What is this value in nanograms? In your…

A: The mass of uranium atom = 3.9526×10–22 grams

Q: Perform the following calculations and express each answer to the correct number of significant…

A: The solution is as follows :

Q: A student measures a block to weigh 127.95 grams what would this mass be in milograms with the…

A: Given – Mass of block = 127.95 g   To find - convert g to mg

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

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Q: In the following calculation, 4.278 x 3.1, how many significant digits would be in the final answer?…

A: 4.278 × 3.1 Number of significant digits in the answer?

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

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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: We have to find the number of molecules of water in a given volume. The density of water is also…

Q: A chemist weighed out 5.3 g of iron. Calculate the number of moles of iron she weighed out. Be sure…

A: Given : weight of iron = 5.3 gram    Find : Calculated the number of moles of iron .   Formula :…

Q: What is 3/4 cup granulated sugar converted into nanograms? 1 cup of sugar = 198 grams 1 nanogram =…

A: Nanogram is the unit of measurement of mass  at  micro level.

Q: (8.71× 0.0301) 0.056

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Q: How many in3 are there in (7.70x10^2) cm3? Given: 1 inch is exactly 2.54 cm.

A: Interpretation: Conversion of given number from cubic centimetre to cubic inch is to be calculated.…

Q: If the average density of moon is 5.13 g/cm³, what is the mass of moon in grams? (the radius of moon…

A: Given: Density of moon = 5.13 g/cm3  And radius of moon = 1737 Km = 1.737 × 108 cm…

Q: How many square centimeters are there in 1 hectare? Express your final answer in scientific…

A: 1 hectare = 10,000 M2

Q: What are your sub-dilutions and what is your total dilution if you made the following serial…

A: Given that, the serial of dilutions 0.4/20×0.4/20×0.2/20. We have to calculate the values of…

Q: The mass of a sample is 550 kilograms. Expresses that mass in milligrams? Express your answer in…

A: Convert kilograms to milligram

Q: Do the following multiplication and division calculations. Give a final answer with the correct…

A: final answer with the correct number of significant figures and the correct units. Units can cancel…

Q: 3.39×10^−5g to micrograms Express your answer to three significant figures and include the…

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Q: Calculate the mass of 15.5 L of a substance whose density is 1.1 g/mL. Express your answer in grams…

A: Density is defined as the mass of substance divided by the volume of substance.

Q: A major component of gasoline is octane (CH₂). When liquid octane is burned in air it reacts with…

A: Given :  Moles of water produced = 0.065 mol

Q: a cube of ice has mass= 0.0051 lb , determine the volume of this cube in mL if the density of ice is…

A: Given,  Mass of a cube of ice = 0.0051 lb.  The density of ice = 0.920 g/cm3  The volume of ice cube…

Q: An iceberg has a volume of 8365 ft^3 What is the mass in kilograms of the iceberg? The density of…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

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.