A new synthetic element is found to have two isotopes. Isotope #1 has a mass of 310.9 amu and isotope #2 has a mass of 313.5 amu. If the percent abundance of isotope # 2 is 47.6%, w atomic mass should be written on the periodic table for this new element? 297.0 amu 312.1 aum 312.4 aum 314.4 amu 297.5 aum

Q: The type of aqueous mixture containing relatively large material mixed in water that will fall our…

A: In a homogenous mixture the compound that is present in abundance is water. A solid compound or…

Q: each

A: Solute : small quantity then others called solute.  Solvent : Larger quantity then others called…

Q: The concentration of a solution is a microscopic property O True False *

A:

Q: Why is salt a solid?

A: The formation of salt takes place by the reaction of a acid and a base. On the basis of the nature…

Q: most intravenous For injections, great care is taken concentration of the solutions to be injected…

A: The reason for this lies in the principle of osmotic pressure. We know that osmotic pressure (π) =…

Q: What volume in mL of 0.100 M solution would contain 65 mg of ethanol?

A:

Q: To provide 250mL of a 2.5M nitrous acid solution, what mass of nitrous acid is needed?

A: Molarity of the solution may be determined by dividing the number of moles of solute by the volume…

Q: How much water (in grams) should be added to 5.80 g of KCI to prepare a 0.160 m solution? Answer to…

A: Given  : mass of solute ( KCl ) = 5.80 g        Molality of KCl solution= 0.160 m = 0.160 mol / kg…

Q: At what temperature will 150 grams of KI saturate the solution ?

A: Given the mass of potassium iodide (KI) is 150 grams.

Q: How can you specify the solution as unsaturated or saturated?

A: Saturated and unsaturated solutions

Q: 2) How many milligrams of MgSO4 are required to prepare 43 mL of a 1.60 mM solution?

A: Molarity (M) of a solution is defined as the number of moles of solute present in the 1.0 liter of…

Q: What volume of a 0.1 M Sodium Hydroxide solution could be made with 200g of solute?

A: Given data: Molarity = 0.1M Weight of solute = 200 grams

Q: about water analysis in chemistry

A:

Q: When adding 80mL of water directly to 20mL of a 0.40M sodium chloride (NaCl) solution, we obtain a…

A:

Q: Raferences Indicate whether each of the following statements about the general properties of…

A: The homogeneous mixture of two or more substances is known as a solution. The substance present in a…

Q: In order to be an ELECTROLYTE, the solute must be ____________.   a)  solid   b)  liquid   c)…

A: Electrolytes:- when solute  dissolve in water they allow                        an electric…

Q: No. of grams of 500 ml solution of 2000 ppm NaCl is 1000 2,

A: Given that  Concentration of NaCl solution = 2000ppm Volume of solution = 500mL = (500mL×1L/1000mL)…

Q: Define water of hydration

A:

Q: calculate the final volume of a 0.0315M solution prepared by diluting 32.5mL of 0.153M lithium…

A: A question based on concentration terms. The volume of the final solution after being diluted is to…

Q: Give a clear handwritten answer with explanation..What is the concentration (in ppm) of nitrite in a…

A:

Q: 19) 28.1 mL of 4.48 M HCl solution is diluted to a volume of 248.9 mL. What is the concentration of…

A:

Q: Calculate the morality of a 45.8 percent (by mass) aqueous solution of sodium chloride

A: mass % of the Sodium chloride solution = 45.8 %Molality of the solution = ?Note: Molar mass of…

Q: Prepare 1.5L of a 2M sulfuric acid aqueous solution.

A: Amswe is given below

Q: How to prepare a dilute solution?

A: Dilution The dilution process is the process to change (decrease) the concentration of solution in…

Q: A certain brine has 3.87% NaCl by mass. A 75.0 mL sample weighs 76.9 g. How many liters of this…

A: The objective of the question is to find out how many liters of a brine solution, which contains…

Q: How many grams of KMnO4 are required to make 250mL of 0.020M KMnO4 solution?

A: Volume of KMnO4 solution V = 250 mL Concentration of KMnO4 solution (C) = 0.020 M We have to…

Q: What amount of 0.38 M solution can be made from a296mL 4.65 M solution?  Answer should be in L…

A: Given, The amount of 0.38 M solution can be made from a296mL 4.65 M solution is:

Q: )Explain in words with details how you would prepare a dilute solution from a stock solution.

A: A solution is a mixture of solute and solvent present in varied concentrations and these…

Q: an Licl solution has a fra fion of 9,4665 ppt concen what volume of solution will of 0.00057 q mass…

A: Given: Mass of LiCl = 0.00057 g. And the concentration of LiCl = 9645 ppt.

Q: How many mL concentration 15 M sulfuric acid solution will I need to make 500 mL of 1.5 diluted…

A:

Q: Calculations Mass to make 7 ml of a 0.6 M solution ■ Mass to make 7 ml of a 0.6% w./v. solution

A: Given: 7 mL of 0.6M solution 7 mL of 0.6% w/v solution Assuming Molar mass of solute be m.

Q: Which two statements are correct? a) The normality of the K2Cr2O7 solution is 0.41 N b) The…

A: When dichromate ion in acidic medium, treated with ferrous ion, then Ferric ion and chromium (III)…

Q: 0.500 grams of potassium iodate and excess of KI was titrated with 100.0 mL of thiosulfate solution…

A: The balanced chemical equation for the reaction is: IO3- + 5I- + 6H+ → 3I2 + 3H2O From the equation,…

Q: Write a step by step procedure to make 500ml of a 0.125 lithium oxide solution. Be sure to include…

A: Answer :-  To prepare 500 ml 0.125 M lithium oxide (Li2O) solution, dissolve 1.863 g lithium oxide…

Q: Complete the following table for a solution consisting of water and Zinc nitrate:

A: 1.Molarity : It is defined by the moles of solute present in 1 Lit or 1000 mL of solvent. Its unit…

Q: How many grams of lithium peroxide are required to prepare 329 mL of 0.215 M solution?

A: Since the moles of Lithium Peroxide (Li2O2) required will be given by  Moles of Li2O2 =…

Q: How much of a 1:20 dilution will 5 ml of serum make?

A: Here, we need to calculate the volume of final solution when there will be 1:20 dilution of 5mL…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A:

Q: What molarity of HCl stock solution is needed so that 12.5 mL of this stock solution diluted to…

A: Note: 1000 mL = 1 L 1000 mM = 1 M Given, Stock solution of HCl: Molarity of HCl solution (M1) = ?…

Q: 500 mL of 1.0 M HCl solution from a concentrated reagent.

A: Concentration of solution = Moles of Solute/Volume of solution(in L) Concentration of HCl solution =…

Q: How many liters of 0.775 M solution can be prepared from 55.0 g of ammonium iodide?

A: The solution is given below -

Q: Which type of concentration is calculated when the grams of solute is divided by the grams of the…

A: Given Formula  Formula = grams of solutegrams of solution ×1000000 Type of concetration calculated =…

Q: You need to prepare 200 ml of 5% solution of salt. To do that you need to use of salt. of water and

A: Volume of solution = 200 mLConcentration of salt =5%We have to prepare 200 mL of 5% solution of…

Q: What volume, In milliliters , of calcium chloride 15.0M stock solution would you use to make 500 mL…

A:

Q: Why do some chemicals dissolve in water while others do not?

A: Molecules that have a positive end and a negative end, or that can separate into components with…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.