1) How much (in grams) urea [CO(NH,),] must be added in 550 g of water to prepare 1.50 m solution?

Q: Prepare 250 ml of a standard solution of sodium carbonate (106g / mol) at a concentration of 0.3N?

A: Calculation of mass of sodium carbonate:                   Concentration of standard solution = 0.3…

Q: How many grams of CaCl2 should be dissolved in 500? mL of water to make s 0.333 M solution?

A: Given  Volume                    = 500 mL          Molarity of solution = 0.333 M  Mass of CaCl2…

Q: How many grams of Cesium phosphate will be required to prepare 800. ml of a solution, that gives a…

A: Cesium phosphate is Cs3 (PO4) Therefore, [Cs] = 3 [Cs3 (PO4)]  Hence,  [Cs3 (PO4)]  = 1/3 [Cs] =…

Q: How much of a 1.50 M sodium sulfate solution in millilitersis required to completely precipitate all…

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Q: 8) The volume percentage V/V% is equal to preparing by mixing 30 mL ethyl alcohol with 350 ml water.…

A: Volume percentage ( V/V )% :-  The volume of solute present in 100 mL of solution is called volume…

Q: Calculate the molar2.20 mole of methanol (CH3OH) in 5.00 L of solution

A: Given,  moles of methanol (CH3OH) = 2.20 mole Volume of the solution = 5.00 L Molarity of the…

Q: How many grams of CaCO3 are present in 576 ml of a 1.2 N solution?

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Q: An aqueous magnesium chloride solution is made by dissolving 6.90 moles of MgCl, in sufficient water…

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Q: Calculate the percent by mass for a solution with 0.110 g cesium chloride in 0.380 mL of water.

A: Percent by mass for a solution =  mass of solute / mass of solution  Given data: Mass of…

Q: How many grams of ammonium chloride (NH4Cl) are there in 575 mL of a 0.400% (m/v) solution of NH4Cl?

A: Given: Volume of solution = 575 mL Percentage composition of solution = 0.400%(m/v)

Q: 5 mL of 3% hydrogen peroxide solution (0.88 M) and 5 mL of potassium iodide solution (0.25 M) are…

A: Total volume the solution after addition of 5 mL of hydrogen peroxide solution and 5 mL of potassium…

Q: 2.A student realizes they forgot to add boiling stones to their distilling flask. The solution is…

A: Boiling stones are used to prevent loss of product. it cannot allow the solvent spill over the flask…

Q: What mass (in grams) of sodium nitrate must be dissolved in 0.1151 kg of water to prepare a solution…

A: Given : Mass of water = 0.1151 Kg = 115.1 g…

Q: How many grams of ammonia (17.03 g/mol) are present in 5.0 L of a 0.050 M solution?

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Q: How many moles of MgCl2 would be found in 250.0 mL of 0.125 M MgCl2?

A: solution

Q: Calculate the number of grams of solutethat has to be used to make the following solution: 131.4 mL…

A: Given :- molarity of H2SO4 solution = 0.694 M volume of solution = 131.4 mL  To be calculated :-…

Q: 3.5g of hydrochloric acid is mixed with 0.75 L of sodium hydroxide at 2.0 Molarity. How many grams…

A: Number of moles (n) can be calculated by using the formula n = massmolar mass Alternatively number…

Q: How many grams of solute are needed to make 450. mL of 0.350 M sodium carbonate solution?

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Q: What volume in L of a 0.32 MMg(NO,). solution contains 45 g of Mg(NO,), ?

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Q: • How many milliliters of 0.250 M NaCI solution must be measured to obtain 0.100 mol of Naci?

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Q: Determine the mass of Na2S2O3.5H2O required to prepare 0.1N solution in 50 ml volume.

A: To determine the mass of Na2S2O3.5H2O.

Q: You    have    a    250    mM    stock solution of    Tris.    What    volume    of    this    stock…

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Q: How many moles of nitrate are dissolved in 66.900 g of water in a 0.81400 m aluminum nitrate…

A: Given that: mass of solvent, water = 66.900 g molality of aluminium nitrate = 0.81400 m To find:…

Q: How many grams of ammonium chloride (NH4Cl) are there in 565 mL of a 0.400% (m/v) solution of NH4Cl?

A: Since % m/v is defined as  % m/V = mass of solute X 100 / volume of solution  Volume of solution…

Q: How many mL of a 0.243 M aqueous solution of magnesium nitrate, , must be taken to obtain 5.69 grams…

A: Molarity is the concentration term. It is the number of moles of solute to the volume of solution in…

Q: How many grams of cobalt (II) nitrate would you need to add to a 100.0 mL volumetric flask to make a…

A: Molarity is the concentration unit , which is defined as moles of solute dissolved in Liter of the…

Q: What is the total volume of solution, in mL, needed to dissolve 13.73 g of K3PO4 at a concentration…

A: Molarity (M) is defined as the number of moles of solute per volume of the solution in liters. i.e.…

Q: The mass of nickel(II) carbonate that is dissolved in 175 mL of a saturated solution is grams.

A: The question is based on the concept of solubility product Principle.   it states that a weak…

Q: How many moles of nitrate are dissolved in 89.640 g of water in a 0.71600 m aluminum nitrate…

A: Molality: Molality can be defined by saying that, "number of moles of the solute dissolved per kg of…

Q: What is the molality of ions in a 0.465 m solution of (NH,),PO4 assuming the compound dissociates…

A: The chemical reaction of dissociation of (NH4)3PO4: NH43PO4 → 3NH4+ + PO43- The molality of…

Q: 6) What volume (L) of a 0.277 M KBr solution is needed to provide 13.4 g of KBr?

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Q: How many grams of TiCl3 (154 g/mol) are needed to make 20 liters of an isotonic solution?

A: Two or more solutions exerting the same osmotic pressure are called as isotonic solutions.

Q: A 300 ml solution of 0.55M sodium Chloride solution was evaporated. How much salt by weight was…

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Q: In a healthy adult, mercury is removed from the body naturally but slowly. If a 500.0g piece of…

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Q: What mass of calcium hydroxide is in 25mL of 1M solution?

A: Given, Molarity of the solution = 1M Volume of the solution = 25ml The formula: Molarity = No. of…

Q: 4. The Molarity of concentrated HCI purchased in the laboratory is approximately 12.1 M. How many ml…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: A solution of Nickel sulfate (II) (MW: 154.75 g/mol) has a concentration of 500mM. Give the…

A: Answer: In this question we have to convert molar concentration of the NiSO4 solution into (w/v)% of…

Q: A paint requires 45.5 g of iron(III) oxide to give it the right yellow tint. How many grams of a…

A: Mass percent explains the concentration of a substance in a mixture, which is represented as %. Mass…

Q: The mass of zinc carbonate that is dissolved in 125 mL of a saturated solution is grams.

A: ZnCO3 → Zn2+ + CO32- Ksp value of ZnCO3 from literature is 1.46 × 10-10

Q: How many milliliters of an aqueous solution of 0.149 M barium acetate is needed to obtain 17.4 grams…

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Q: A high school chemistry teacher is preparing a solution by dissolving, 17.5mL of ethanol (ETOH) in…

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Q: 1.) How Many grams of NaOH (MW=40.0) are in 200 ml of a 0.175 M solution of NaOH?

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Q: culate the minimum amount of K2Cr207 that must be added to 254 mL of water at 50°C to make a…

A: The question is based on the concept of solubility.   The maximum amount of solute which can be…

Q: How many grams of FeSO4 are present in a 20.0 mL sample of a 0.500 M solution?

A: mmol of Feso4 =  0.500 mmol × 20 mL / mL = 10 mmol mol of Feso4= 10 mmol/ 1000 mmol = 0.01 mol

Q: what volume of water must be added  in order to dilute a 500 mL, 0.450M solution of NaCl to 0.200M?

A: Given, 500 mL of 0.450M solution

Q: 2. How many grams of acetic acid ( HC,H,O.) is needed to prepare 350ml of a 0.7 M solution of acetic…

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Q: An aqueous magnesium chloride solution is made by dissolving 6.83 moles of MgCl, in sufficient water…

A: Molarity (M) of a solution is defined as the number of moles of solute dissolved per volume of the…

Q: #1 Calculate the molarity of the following solution: 0.50 moles of CaCl, in 3500 mL of solution.

A: