5.123 At 286 K, three gases, A, B, and C, have root-mean-square speeds of 351 m/s, 433 m/s, and 472 m/s, respectively. a. Which gas is O2? b. Are the other gases heavier or lighter than O2? c. Which one could be a different diatomic element?

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 58.6 g of iron(II)…

A: Given, Mass of iron (II) bromide (FeBr2) = 58.6 g Volume of the flask = volume of the solution = 250…

Q: A chemist prepares a solution of copper(II) sulfate (CuSO,) by measuring out 20.7 g of copper(I1)…

A: Given :-  mass of copper(II)sulfate = 20.7 g  volume of solution = 500 mL  To calculate :-…

Q: Express 1:444 (w/v) as a percent concentration (round to three decimal places) and as a…

A: We need to convert given w/v concentration to percent concentration and parts per million.

Q: Ammonia (NH,) chemically reacts with oxygen gas (0₂) to produce nitric oxide (NO) and water (H₂O).…

A: The balanced chemical equation for the reaction between ammonia (NH3) and oxygen (O2) to produce…

Q: In the laboratory you dissolve 15.5 g of barium nitrate in a volumetric flask and add water to a…

A:

Q: 75.42 % mass solution of naquadah (FM naquadah = 160.28 g/mol) in water has a density of 1.175 g/mL.…

A:

Q: What volume of 3.51 M KOH is required to prepare 211.0 mL of 0.750 M KOH? a. 1.24 × 10–2 mL b.…

A: Given: First Values of KOH Concentration, M1= 3.51MVolume,   V1 = ????       Second Values of KOH…

Q: Question 1. Can you confirm if my work is correct, if not can you show me where I went wrong?

A: Mass percent of component in a solution is the mass of the component present per 100 g of the…

Q: 3. What volume of concentrated H2SO4 solution would you need to prepare 430 mL of a 0.600 M H2SO4…

A: The concentrated solution is diluted with water to have the dilute solution. To find out the volume…

Q: Ms. Dunne added 2233.8 milliliters of water to 16.2 milliliters of NaOH solution to make a 3.60 x…

A: The equation for calculating molarity is the ratio of the moles of solute whose molarity is to be…

Q: O Chemical Reactions Calculating molarity using solute moles 1/5 A chemist prepares a solution of…

A: Given: μmolZn(NO3​)2​=5.0μmol;V=50.mLC=???μmol/LStep 1: Convert the volume to…

Q: An empty Erlenmeyer flask weighs 241.3 g. When filled with water (density = 0.997 g/mL), the flask…

A: Weight of empty Erlenmeyer flask = 241.3gWeight of flask + water= 489.1 gVolume of water=?Density of…

Q: Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice,…

A: Complete the table,NlnNlogN6.194.016-0.455

Q: How many grams of LiF would be present in 575 ml of 0.750MSohetien

A: Given information is as follows: The molarity of the solution = 0.750 M The volume of the solution =…

Q: What mass of NaCI to you need to dissolve in order to prepare 2.500 L of 0.325 M solution? A similar…

A: Molarity is defined as the number of moles of the solute divided by the volume of the solution in…

Q: In the laboratory, a student dilutes 17.9 mL of a 8.42 M hydrochloric acid solution to a total…

A:

Q: Suppose 0.0991 g of lead(II) nitrate is dissolved in 100. mL of a 15.0 m M aqueous solution of…

A: Given , mass of  lead (ll)  nitrate=0.0991 g

Q: Two bottles of salt water were created with 52 grams and 62 grams of NaCl into two different sized…

A: In this question, we want to determine which Bottle ( A or B ) is least salty ( least Concentrated )…

Q: 1. A 10.0 mL graduated cylinder to measure 10.0 mL of a 1.00 M CaCl2 solution into an initially…

A: The balanced chemical equation has to be written,

Q: Calculate the molarity of each solution. 1. 0.142  mol  of sucrose in 696  mL  of solution…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Then,

Q: How many significant figures should your answer have? 8.101 + 0.10 = O 1 O 2 O 3 O 4 O 5 O 6 O 8

A: In addition, significant figure of answer will be equal to less significant figure in all given…

Q: If 12.87 mL of a salt solution weighs 13.357 g, what is the density of the salt solution?

A: The relation between mass, volume and density is as follows : Density = mass/volume

Q: A stock solution was made by adding 200.0 g of CaCl₂ to 300.0 g of water. Next, a dilute solution is…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: What is the mass of 1 mL of pure water? How could this information be used to check the accuracy of…

A: Density of a substance is defined as its mass per unit volume.

Q: If 0.9871 g of the primary standard KIO3 is used to prepare 500.00-mL of the standard solution, how…

A:

Q: A lab prepared a solution of sulfuric acid with a volume of 5.0x10-4 m3. The solution is further…

A: Molarity is defined as the number of moles of solute dissolved in 1 L of solution. The unit of…

Q: A patient needs 1.5 g of a solid must be given to the patient pe O 60 tablets

A: The dose of a drug: it is the quantitative amount taken by patient for the intended medicinal effect…

Q: If you dilute 35.0 mL of 1.00 M hydrochloric acid to 800. mL, what is the molar concentration of the…

A:

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

A: Given, the chemical reaction is as follows,C6H12O6→2C2H5OH+2CO2amount of glucose for reaction =805.6…

Q: Given that one cup 265.4 mlL, calculate the molarity of vitamin C in orange juice.

A: Molarity is a measure of the concentration of a chemical species, in particular of a solute in a…

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 333. g of iron(II)…

A: The concentration or molarity of the solution can be determined by using the formula given below as;…

Q: A chemist prepares a solution of zinc nitrate = (Zn(NO3)₂) by measuring out 22.6 g of zinc nitrate…

A: We will first convert the mass of Zn(NO3)2 to moles. To do that we will require the molar mass of…

Q: A solution has a concentration of 0.22 M KBr and a volume of 0.020 L. It is then diluted to a…

A: We know the dilution equation for a solution is => M1V1 = M2V2 where, M1 is the concentrated…

Q: What is the best answer to report for 3.5910 g-3.5110 g 3.012- _? | 0.0254 mL

A: The best answer to report for , can be calculated as follows:

Q: If 21.1 grams of an aqueous solution of copper(II) fluoride, CUF2, contains 3.81 grams of copper(II)…

A:

Q: Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice,…

A: We know that, Lowest significant digit present in the given questions is also a part of answer means…

Q: What is the maximum amount of silver in grams that can be plated out of 4.8 Lof an AGNO, solution…

A: Given volume of solution = 4.8 L density of solution = 1.01 g/ml

Q: How many mL of liquid mercury with a density of 13.6g/mL must you dispense to have 1.56 x 10-3 mol

A:

Q: During an accident, the air bag inflates due to the decomposition reaction of sodium azide (NaN3).…

A: When NaN3 is heated, it decomposes to give solid sodium and nitrogen gas. NaN3→ 2Na(s)+3N2(g)

Q: If 2.724 grams of material dissolves in 5.00 mL of water, how many grams of the material will…

A: Given : Mass of material that dissolves in 5.00 mL of water = 2.724 g And volume of another water…

Q: What is the molarity of the caffeine solution B? Molecular Weight of Caffeine 1942 grmol A Take 20…

A: Given, Note: 1000 mL = 1 L Solution A Molarity of the solution A = 5 × 10-4 M = 5 × 10-4 mol/L…

Q: What do you get if you subtract 0.250 L of ethanol from 0.250 L of water at room temperature?

A: Mixture of 0.250 litre of ethanol and 0.250 litre of water comes to 0.500 litre.

Q: What is the final molarity of a solution (in M) if one takes 16.0mL of 3.0M red dye (red food…

A:

Q: Calculate the mass of potassium hydrogen phthalate (KHP) molar mass=204.22 your answer has the…

A:

Q: What is the molarity of a solution prepared using the given amount of solute and total volume of…

A: The question is based on the concept of molarity. molarity is a method of expressing concentration…

Q: Pill 1 Pill 2 Mass percent of FESO4 7 H,O (%) Average mass percent of FESO, 7 H2O (%) 6. unrounded…

A: Mass percent of a substance can be calculated as follows; Mass percent=Mass of substanceTotal…

Q: What volume of solution was dispensed from the buret shown below? Make sure that your answer has the…

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.