E MEASUREMENT Counting significant digits when measurements are multiplied o... Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. g 2.09476 -x 5.125 mL = mL 7.81 g mL -x 5.125 mL = 8 402.24 g + 0.39 mL = mL X 3

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A: The formula to calculate the Concentration in g/mL is : Concentration = Mass of Solute ÷ Volume of…

Q: i www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNšlkr/J8P3]H-IBCH O Sample Source An. O New Tab G What…

A: Given q = 52.2 kJ              = 52200 J         ( 1kJ = 1000 J) m = 5.70 Kg                =…

Q: 55. Round the number on the left to the number of significant figures indicated by the example in…

A: The round of the numbers is given below,

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A:

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A:

Q: At a certain temperature, the equilibrium constant K for the following reaction is 0.0075: H₂(g) +…

A: Given:A reaction : 2HI(g)" data-mce-style="box-sizing: inherit;">K for the reaction =…

Q: O CHEMICAL REACTIONS Writing the net equation for a sequence of reactions Manganese commonly occurs…

A: To write the net chemical equation of the given two steps involved, we have to identify the common…

Q: Calculate the mass of vanadium(V) oxide (V,0,) that contains a billion (1.00 × 10°) oxygen atoms. Be…

A: Given data : no. of Oxygen atoms = 10^9 atoms to find = the mass of V2O5 in given oxygen atoms now,…

Q: the moles

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Q: An aluminum atom has a mass of 4.48 × 10 g and a small airplane has a mass of 5000. kg. Use this…

A: Given, Mass of 1 atom of aluminium = 4.48 × 10-23 g Mass of small airplane = 5000 kg = 5.0 × 106 g…

Q: O THERMOCHEMISTRY Understanding the definition of enthalpy Measurements show that the enthalpy of a…

A: Equation for change in enthalpy (ΔH) is given by,  ΔH = ΔE + PΔV      ------ ( 1 )   ΔE = Change in…

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

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Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 2.3 x 10 umol of iron(II)…

A: Change micro mol to mili mol the volume in L. then divide it.

Q: Acetylene and oxygen react to form carbon dioxide and water, like this: 20,H,(2) +50,(8)…

A: Disclaimer: As this is a completely subjective question which does not involve any numericals, the…

Q: Calculate the energy required to heat 1.70 kg of ammonia from 60.2 °C to 66.4 °C. Assume the…

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Q: Suppose 0.433 g of zinc chloride is dissolved in 150. mL of a 19.0 m Maqueous solution of potassium…

A: Given, The mass of zinc chloride = 0.433 g. Volume of potassium carbonate = 150. mL Molarity of…

Q: ||| O STOICHIOMETRY Using molarity to find solute mass and solution volume Calculate the volume in…

A: Details

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Mole ratio indicates the proportion of different atoms present in one compound and it is used to…

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: given :- mass of HBr = 4.9 g               mass of NaOH = 1.3 g  To calculate :- theoretical yield…

Q: Sulfur dioxide and oxygen react to form sulfur trioxide, like this: 280,(2)+0,(2) 280,(8) Suppose a…

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Q: An arctic weather balloon is filled with 16.0 L of helium gas inside a prep shed. The temperature…

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Q: The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide…

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Q: Liquid octane (CH₂(CH₂), CH₂) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide…

A: Given that - Liquid octane (CH3(CH2 )6CH3) will react with gaseous oxygen (O2) to produce gaseous…

Q: A chemist adds 365.0 mL of a 0.46M copper(II) sulfate (CuSO4) solution to a reaction flask.…

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Q: The pressure in a rigid aerosol container is 2.7 atm at 27 °C. What will be the pressure if the…

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Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: Given,  Chemical formula for methyl tert-butyl ether is CH3O(CH3)3  Moles of C in methyl tert-butyl…

Q: Ammonium perchlorate (NH,Clo,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

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Q: An aluminum atom has a mass of 4.48 x10 -23 g and a small airplane has a mass of 5000. kg. Use this…

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Q: O CHEMICAL REACTIONS Writing the net equation for a sequence of reactions Nitric acid is often…

A: Nitric acid prepared from atmospheric gases nitrogen, oxygen and hydrogen. preparation takes place…

Q: -23 g and a small airplane has a mass of 5000. kg. An aluminum atom has a mass of 4.48 x 10 Use this…

A: Given: Mass of aluminum atom = 4.48×10-23 g Mass of small airplane = 5000 kg

Q: O CHEMICAL REACTIONS Theoretical yield of chemical reactions Liquid octane (CH;(CH,) CH,) reacts…

A: Balanced reaction is as :-  2C8H18(l) + 25 O2(g) ---> 16CO2(g) + 18H2O(g)

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Q: Solving moles-to-moles limiting reactant problems Solid aluminum (Al)and chlorine (Cl,) gas react to…

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Q: A chemistry student weighs out 0.235 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

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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.