a) What is the percent concentration of a solution made by mixing 22.5 g of sodium chloride in 35g of solution? b) Determine the concentration of 2.5g of lithium chloride found in 2500mL of water? c) Calculate the molar concentration (molarity) of a solution that contains
Q: You need to prepare 250. mL250. mL of a 0.700 M0.700 M aqueous solution using a pure solid with a…
A: First calculate the required number of moles. Moles=Molarity×Volume in L=0.700M×250.0×10-3L=0.175mol
Q: Have a solution containing 16.2% by mass of sodium thiosulfite, Na2S2O3 a) How many moles of Na2S2O3…
A: The given solution contains 16.2% Na2S2O3 by mass. Molar mass of Na2S2O3 is 158.11 g/mol Here we…
Q: What volume of 6.0 M H2SO4 is needed to prepare 500.0 mL of a solution that is 0.25 M in H2SO4?
A: On dilution of a substance the number of moles of solute always remains constant. The number of…
Q: You need to prepare 250. mL250. mL of a 0.400 M0.400 M aqueous solution using a pure solid with a…
A: For this problem, we need to know what is molarity first. Molarity: It is an unit of concentration…
Q: Solve the following problem: If 0.84 liters of a 2.04 M solution ferric bromide (FeBr3) are needed…
A: Given, Volume of FeBr3 = 0.84 L Molarity = 2.04 M Volume of Pb(NO3)2 = 2.25 L Molarity = ?
Q: Please calculate the grams of each substance needed to make the following solutions: One-half…
A: Given: The volume of the solution of CaSO3, (V) = 05 L. The molar mass of CaSO3, (M) = 120.17 g/mol.…
Q: Directions: Use solution stoichiometry to answer the following problems. Show your complete…
A:
Q: Calculate the molarity of 0.900 mol of Na2S in 1.35 L of solution? molarity =
A: Molarity is a concentration term which is defined as the number of moles of solute dissolved per…
Q: please highlight the correct answer
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: e.What is the molarity and normality of a solution which is prepared by dissolving 75.0 g of Ba(OH)₂…
A:
Q: Organic compound contained C, 18.3%; H, 0.51%; and the rest is Br. When 0.793 g of the compound was…
A: Given data,Percentage of C=18.3%Percentage of H=0.51%Percentage of Br=100-(18.3+0.51)=81.19%Mass of…
Q: Solve on paper using satrect formula and showing step by step calculation. An aqueous solution of…
A:
Q: Consider a solution composed of toluene (C7H8) and benzene (C6H6) with volumes 50 mL and 125 mL,…
A: The molarity of a solution depends on the number of moles of the compound and the volume of the…
Q: the bottle is labeled 174.3mg of Fe(NH4)2(SO4)2•6H2O in 1.000 liter, what is the concentration in…
A: The parts per million unit is equal to the milligrams per liter. 1 ppm=mg/L Molar mass of…
Q: A burette had an initial volume of 5.2 mL and a final volume of 32.6 mL, what is the amount of…
A: Given data is as follows: The initial reading of the burette V1= 5.2 mL The final reading of the…
Q: 1. What mass of sodium hydroxide must be weighed to make 500 mL of 0.1 M NaOH? 2. What mass of…
A: 1) Given, Molarity of NaOH solution = 0.1 M = 0.1 mol/L Volume of NaOH solution = 500 mL = 0.5 L…
Q: Show the calculation that you will use to prepare 5 mL of 200 mM stock solution of cobalt (II)…
A: Concept: Molarity: Molarity (M), or molar concentration, is the amount of a substance dissolved in a…
Q: What is the final volume (in L) when 96.3 mL of 8.2 M HF is diluted to make a 0.8 M solution?
A: 96.3 mL of 8.2 M HF is diluted to make 0.8 M solution. We have to find final volume Initial…
Q: concentration
A:
Q: Consider 100mL of a certain juice in which the solute concentration is 0.4 mol.L-1. The volume of…
A: • The values provided in the question are:- i) Initial volume of a certain juice solution, V1 =…
Q: What is the final concentration of a solution made by mixing 160.0 mL of 1.50 M KNO3 with enough…
A:
Q: 1. Answer the following: a. the concentration of ammonia in the White River water sample was found…
A: Answer :- a) Molarity of Ammonia (NH3) solution = 0.00047 M…
Q: Use the dilution equation to calculate the number of milliliters of 3.00 M NaCl needed to make 600.0…
A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…
Q: Answer is provided. All I need is solution. From the following formula or 40 sertraline…
A: 40 sertraline hydrochloride capsules consists of Sertraline hydrochloride…
Q: Calculate the molarity of a throat spray that is 1.50% by mass phenol (C6H5OH) in water. The density…
A: We have to Calculate the molarity of a throat spray Given, it Is 1.50% by mass phenol (C6H5OH) in…
Q: Calculate the following. a. Molarity of solution made by dissolving 35.00 grams of NAC2H3O2 in 1.25…
A: Since , Number of moles = Given number of moleculesNA
Q: Please help me answer the following question. It will be a big help, thank you! *Calculate the…
A: Molarity is used to measure the molar concentration of a solution. Molarity is the no of moles of…
Q: 2 KOH + H2SO4 --> K2SO4 + 2 H2O If 131mL of 0.324M KOH are used, what molarity was H2SO4 if 73mL was…
A: Given data contains, Volume of KOH is 131mL. Molarity of KOH is 0.324 M. Volume of H2SO4 is 131mL.
Q: Determine the concerntration of a solution prepared by diluting 50.0 mL of a stock 0.500 M Ca(NO3)2…
A: We know, Vinitial x Sinitial = Vfinal x Sfinal where, Vinitial = initial volume of the solution…
Q: 100 90 80 NANO 70 60 CaCl, Pb(NO.)2 50 40 Naci KCI 30 20 KCIO, 10 Ce,(SOa O 10 20 30 40 50 60 70 80…
A: The solubility graph is : At 50oC the solubility of KNO3 is approximately 88g/ 100 ml of the…
Q: where 0.150 mol of the solute is dissolved into enough solvent to give a total volume of 350 mL. 2.3…
A: The mole concept was proposed to relate the composition of substances, atoms, and molecules.…
Q: Solubility (g of salt in 100 g H,O) KNOS K,Cr,07 1. Examine the graph below, and answer the…
A: The maximum mass of solute that can be dissolved in the given amount of the solvent is known as…
Q: You have a solution that is 18.2% sodium thiosulfate, Na2S2O3 , by mass. a. What mass of sodium…
A:
Q: A chemist attempts to prepare some very pure crystals of borax by dissolving 100g of Na2B4O7 in 200…
A:
Q: A chemist attempts to prepare some very pure crystals of borax by dissolving 100g of Na2B4O7 in 200…
A:
Q: What volume (in mL) of 18.0 M H2SO4 is needed to contain 2.45 g H2SO4?
A:
Q: A stock solution of glucose C6 H12 O6 was prepared by dissolving 0.465 moles of glucose in 2.20l…
A: Serial dilution
Q: 1. Refer to the given Solubility Curve (Figure 1), and answer the following 150 140 a) A saturated…
A: When the mass of solute at a temperature is more dissolved, then the solubility of that solute will…
Q: A 0.128 g sample of KHP (HKC8H4O4) required 28.54 mL of NaOH solution to reach a phenolphthalein…
A: Mass of HKC8H4O4 = 0.128 g Molar mass of HKC8H4O4 = 204.44 g/mol So, Number of moles = 0.128 g /…
Q: calculate the volume of your stock solution that would be required to make 50.0 mL of a 0.0200 M…
A:
Q: 24. How many mL 12.0M nitric acid are needed to make 625mL 0.11M nitric acid? 25. What is the final…
A:
Q: A chemist attempts to prepare some very pure crystals of borax by dissolving 100g of Na2B4O7 in 200…
A:
Q: Calculate the mass (in grams) of magnesium chloride
A: Percent by mass = (mass of MgCl2/mass of solution) × 100% % w/w = (mass of MgCl2/mass of…
Q: What is the molarity of 0.654L of solution with 0.444mol CoCl2 in it?
A: Given, moles of CoCl2 = 0.444 mol Volume of the solution = 0.654 L Molarity of CoCl2 solution = ?
Q: Solve the following problem: If 0.84 liters of a 2.04 M solution ferric bromide (FeBr3) are needed…
A: Solution : Molarity is a unit of concentration that is used to calculate how much amount of…
Q: A biochemist carefully measures the molarity of manganese ion in 85.1mL of cell growth medium to…
A: Given, Molarity of cell growth medium initially, M1 = 98 μM Volume, V1 = 85.1mL After, substantial…
Q: What is the molarity of a solution that contains 14.5 g of NaCl in 500. mL water? 2. How many moles…
A: 1) Since moles of NaCl taken = mass / molar mass molar mass of NaCl = 58.5 g/mol Hence moles of NaCl…
Q: Grams of solute /100 g H,0 Suppose 100 g of NaNO, 60°C. Using the solubility curves below, which…
A: For this we need to understand levels of saturation from solubility curves - Unsaturated solution-…
Q: Solubility Curves of Selected Compounds 150 140 130 120 110 100 NaNO, 90 80 70 60 NHC KCI 50 40 Naci…
A: We will choose Correct option
Q: The following reactions happen simultaneously when HCl is added to a mixture of Mg(OH)2 and MgCO3:…
A: Volume of 37 wt% HCl required can be calculated from the balanced reaction of HCl to MgCO3 and…
Solve the following concentration problems (please show all your work!!)
a) What is the percent concentration of a solution made by mixing 22.5 g of sodium chloride in 35g of solution?
b) Determine the concentration of 2.5g of lithium chloride found in 2500mL of water?
c) Calculate the molar concentration (molarity) of a solution that contains 40.0g of glucose (C6H12O6) dissolved in 450.0 mL of solution.
Step by step
Solved in 2 steps with 1 images
- Please help me answer the following question. It will be a big help, thank you! *Calculate the molarity of the solutions by mixing 250 mL of 0.75 M H2SO4 with a. 150 mL of H2O b. 250 mL of 0.70 M H2SO41. What is the molarity of a solution made by dissolving 3.4g of KMnO4 in 5.2 liters of water? 2. What is the molarity of a solution containing 1.2 moles of CaCl2 in 2905 milliliters? 3. The 500g of solution having a density of 2.37g/mL is made by dissolving a certain solute to make 7.88M of solution. How many moles of solute are dissolved? 4. Calculate the molarity of 25.0 g of KBr dissolved in 750.0 mL. 5. How many mL of solution will result when 15.0g of H2SO4 is dissolved to make a 0.200 M solution?A chemist attempts to prepare some very pure crystals of borax by dissolving100g of Na2B4O7 in 200 grams of boiling water. He then cools the solution slowly until some borax crystallizes out. Calculate the grams of borax recovered in the crystals per 100 grams of initial solution (Na2B4O7 plus water), if the residual solution at 55oC after the crystals are removed contains 12.4% Na2B4O7.What is the percent yield or percent recovery of Na2B4O7. Show process diagram and solution.
- A chemist attempts to prepare some very pure crystals of borax by dissolving100g of Na2B4O7 in 200 grams of boiling water. He then cools the solution slowly until some borax crystallizes out. Calculate the grams of borax recovered in the crystals per 100 grams of initial solution (Na2B4O7 plus water), if the residual solution at 55oC after the crystals are removed contains 12.4% Na2B4O7.What is the percent yield or percent recovery of Na2B4O7.Answer is provided. All I need is solution. From the following formula or 40 sertraline hydrochloride capsules,5 calculate the quantity of each ingredient needed to prepare 250 such capsules. Sertraline hydrochloride 300 mg Silica gel 6 g Calcium citrate 4 g Answer: 1.875 g sertraline hydrochloride 37.5 g silica gel 25 g calcium citrateHannah needs to make a solution of KMnO4 to be used in a chemistry experiment. On the shelf in her supply room is a bottle with 9.02 M KMnO4 already made. However, she only needs 9.8 mL of 1.01 M for her experiment. How many mL of WATER will she need to add to the 9.02 M solution to dilute it to the concentration she needs? [Hint - you will calculate how many mL of concentrated solution to use, and you know the total volume of solution.
- Can an aqueous solution be prepared that is 30% by mass KNO3 at 20 °C? (Hint: use the data from the literature values of the solubility of potassium nitrate.) Answer choices yes it can be made b/c 30 g KNO3/100 g H2O is less than 31. 6 g KNO3/100 g H2O No it can't be made b/c 30 g KNO3/100 g H2O is less than 31. 6 70.38 g KNO3/100 g H2O yes it can be made b/c 30 g KNO3/100 g H2O is less than 45.8 g KNO3/100 g H2O No it can't be made b/c 30 g KNO3/100 g H2O is less than 45.8 g KNO3/100 g H2OWhat volume (in mL) of 12.0 M H2SO4 is needed to contain 32.14g H2SO4? Show the solutions CLEARLY.Solution Dilution A. How many mL of concentrated nitric acid, HNO3, that is 12M do you need to make 500 mL of a 1.5 M solution? B. To what volume should you dilute 25mL of 10.0 M H2SO4 solution to obtain a 0.150 M H2SO4 solution?
- Please answers this question. What is the molarity of a solution that contains 14.5 g of NaCl in 500. mL water? 2. How many moles of NaCl are present in 25.0 mL of 1.00 M NaCl? 3. If 15.00 mL of 2.00 M NaCl is diluted to 25.00 mL, what is the molarity of NaCl in the dilute. Thanks.Please answer this question correctly in the correct format that is needed. an example picture of a format is below, please do this on paper with the correct steps and answer, include brackets as well in the format. Molarity Problem: A solution has a volume of 2.0 L and contains 36.0 g of glucose (C6H12O6). If the molar mass of glucose is 180 g/mol, what is the molarity of the solution.Find the morality of urea (a molecular compound with molar mass 60.06g)in a solution obtained by dissolving 15.02g of urea in 146.96g of water. Give the answer with 4 or more significant figues.