235 mg of magnesium chloride is added to 125 mL of water. What is the concentration of ions in the solution? A. 0.25 mol/L B. 0.059 M C. 2.47 mol D. 1.88 mol/L E. None of the above

Q: Calclate the grams of NaCl contained in 733.7 milliliters of a 0.870 M solution of NaCl. A. 32.0 B.…

A: Provided volume (V) of NaCl=733.7 ×10-3 Provided Molarity (M)= 0.870M Molar mass of NaCl= 58.44g/mol…

Q: Which of the following is a strong electrolyte? a. 70% v/v ethanol b. 1.0 M citric acid c. 10.0…

A: Electrolytes -  These are the substances that dissociate into ions in a solution.

Q: 100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the final…

Q: 100 50 Time ---> Which of the following best describes what is happening at position 4 on the…

A: Answer:- This question is answered by using the given heating curve which involves the heating of a…

Q: Calculate the concentration of all ions present in each of the following solutions of strong

A: Given,  A) 0.100 mole of Ca(NO3)2 in 100.0 mL of solution. The concentration of ions are:

Q: How many moles of acetic acid are in 19.72 mL if the concentration of the solution is 0.891 M. a.…

A: Given: The volume of the solution, (V)=19.72 mL = 0.01972 L The concentration of the solution, (M)=…

Q: A..3.00 x Q12. The spectator ions in the following reaction are? Pb(NO3)2+ 2NaCl- PbCl₂ + 2NaNO, C.…

A: Which of the following are the spectator ions? Reaction: Pb(NO3)2 + 2NaCl ----->  PbCl2  +…

Q: 20. 50 ml of a 0.874 M HNO3 solution is diluted to 0.250 l.  What is the concentration of the…

A: Given values: Initial volume: V1 = 50 mL Initial concentration: C1= 0.874 mL Final volume: V2 = 0.25…

Q: A 25.00 mL sample of H 2SO 4 requires 19.85 mL of 0.110 M NaOH to reach the equivalence point. What…

A: we know molarity is defined as the number of moles of solute present in per litre of solution. when…

Q: 5. A 100.00 mL sample of water taken from a local stream. A 10.00 mL portion of that sample is…

A:

Q: 10. You have two solutions of sodium chloride. One is a 2.00 M solution, the other is a 5.00 M…

A: Solution 1 =2.00M Solution 2= 5.00 M we are mixing solution 1 and solution 2 . On mixing, we are…

Q: A 6.0 M solution of HCI is diluted to 1.0 M. How many milliliters of the 6.0 M solution would be…

A: Given: Initial molarity of HCl solution = 6.0 M Final molarity of HCl solution = 1.0 M Final volume…

Q: Choose the best answer. Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a…

A:

Q: 7. What mass of silver chloride will be recovered if excess sodium chloride is added to 500 mL of…

A:

Q: How many grams of HCl are in the following solutions? a. 1.55 L of a 2.3 M solution b. 112 mL of a…

A: The molar mass of H = 1g/mol The molar mass of Cl = 35.5g/mol So, the molar mass of HCl = 36.5g/mol

Q: A 1.00 L NaCl stock solution has a molarity equal to 0.5 M, what is the final concentration when 200…

A:

Q: If you take a 45.0 mL portion of 1.85 M. NH3 stock solution and dilute it to a total volume of 1.85…

A: Molarity before dilution = 1.85 MVolume before dilution = 45 mLVolume after dilution = 1.85 L = 1850…

Q: 8. What volume of 0.200M HI is needed to neutralize 65.0 g NaOH? c. 13.0 L d. 8.12 L a. 0.325 L b.…

A: Given,0.200 M HI,65 g of NaOH

Q: In the dilution of 10.0 mL of a 0.10 M solution of HCI to a volume of 20.0 mL, what remains…

A: Molarity of HCl = Moles of HCl / volume of solution in L By using this relation we can get that ,…

Q: Q8. The correct set of quantum numbers (n, 1, m, m.) for an electron in a 5f orbital A. (4, 2, 1,…

A:

Q: How many moles of the precipitate are  in the solution? 2. How many moles of Metal Br are  in the…

A: From given information we can say that Unknown metal = M+   Bromide ion = Br-  Metal bromide = MBr…

Q: Q13. When the following equation is balanced in acidic solution the coefficients for, H¹, Cr³, and…

A:

Q: A laboratory technician decides to prepare a 50.0 ml of a 0.5 M solution of HCI from a 32.0% stock…

A: The objective of this question is to calculate the dilution factor for preparing a 50.0 ml of a 0.5…

Q: Q2. A 47.27 g of Ca(OH)2 is dissolved in water to make 1.0 liters of solution. How many mL of this…

A:

Q: 40.0 grams of NaOH was dissolved in enough water to yield 500. ml of solution. What is the molarity…

A: Given,  Mass of NaOH = 40.0 g Volume of a solution = 500. mL The molarity of a solution is:

Q: What volume, in mL, of a 4.75 M phosphoric acid solution is needed to neutralize 13.88 mL of a 6.25…

A: Phosphoric acid reacts with potassium hydroxide to form sodium phosphate and water. The hydrogen ion…

Q: What is the molarity of the solution prepared by diluting 35.0 mL of 1.25 M AgNO3 to each of the…

A: Given, Initial Molarity = 1.25 M  Initial Volume = 35.0 mL  Final Molarity = ?

Q: How many grams of Mg3(PO4)2 are needed to make 3.000 L of a 2.500 M solution ? The GFW for magnesium…

A: The GFW of Mg3(PO4)2 = 262.87g

Q: A 10.0 g of Na2CO3 (106.0 g/mol) is dissolved in 75.0 mL of 0.300 M NaOH. What is the molarity of…

A: Introduction: We have to calculate the molarity of Na+ ions in the solution.

Q: 35.0 mL of 0.255 M HNO3 is added to 45.0 mL of 0.660 M Mg(NO3)2. What is the concentration of…

A: Volume of HNO3 = V1 = 35.0 mlMolarity of HNO3 = M1 = 0.255 MVolume of Mg(NO3)2 = V2 = 45.0…

Q: Calculate the number of moles of sodium hydroxide present in 26.80 mL sample of a 0.315 M solution.…

A: Given : Molarity of sodium hydroxide solution = 0.315 M  Volume of sodium hydroxide (NaOH) = 26.80mL…

Q: 1 How many grams of KBr are needed to make 350 mL of a 0.500 M solution? A. 4.50 g B. 56.4 g C 20.8g…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Determine the molarity of the solution when 0.308 g of silver nitrate is dissolved in 12.0 mL of…

A: molarity of a solution is defined as no of moles of solute devided by volume of solution in liter.

Q: What is the concentration of a solution formed by diluting 25.0 mL of a 3.2 M NaCl solution to 135.0…

A:

Q: The molarity of a solution of 5.00 g of KCI in 150. mL of solution is Use molar mass of KCI of 74.6…

A:

Q: A solution with a total volume of 750. mL contains 37.1 g Mg(NO3)2. Determine the concentration of…

A:

Q: answer Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a potassium ion…

A: Solution 1). Molar mass of K2CO3 = 138.2 g/mol Volume of Solution = 200 mL Concentration of K2CO3 =…

Q: 4. A 10.00 mL sample of a solution of acetic acid in water was titrated to the endpoint by the…

A: A question based on mole concept that is to be accomplished.

Q: A student removes 25 mL of 3.0 M NaOH and dilutes it to final volume of 350 mL. What is the…

A: Given,  Initial volume, V1 = 25 ml  Initial concentration, S1 = 3.0 M  Final Volume, V2 = 350 ml…

Q: Choose the best answer. Q1. What mass of K₂CO3 is needed to prepare 200 mL of a solution having a…

A: Wavelength is the distance between two successive  wave .

Q: What is the molarity of  NaOH(aq) if 23.4 g of NaOH(s) is dissolved in enough water to make a total…

A:

Q: What is the molarity of the resulting solution when 300. mL of a 0.600 M aqueous solution is diluted…

A: Given :-  Initial concentration (M1) = 0.600 M  Initial volume (V1) = 300 mL  Final volume (V2) =…