Find the saponification value of olive oil if 1.5 gram of olive oil reacts with 180 mg of KOH. How many moles of KOH are in 180 mg? Divide 1.5 g of olive oil by this value in moles.

Q: Calculate the molarity of a solution made by dissolving 20.0 g of calcium chloride in 200.0 mL of…

A: Hi there, as there are multiple questions posted. We are answering the first question. If you need…

Q: 1. How many grams of magnesium hydroxide are needed to neutralize 292g of HCL ? How many grams of…

A: Answer :-  a) Mass of Mg(OH)2 needed to neutralize 292 g HCl = 233.2 g  b) Mass of MgCl2 produced =…

Q: A shopper has a choice of yogurt with three different % m/m concentrations of milk fat (MF): 5.9%…

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Q: . How much NH4Cl is required to prepare 100mL of a solution containing 70mg NH4Cl per mL?

A: From given data Mass of NH4Cl = 70 mg = 0.07 g For volume of solution = 1 mL = 10-3L Also Molar mass…

Q: Calcium bydroxide may be used to neutralize (completely react with) aqueous hydrochlcric acid.…

A: The balanced reaction will look like, 2HCl + Ca(OH)2 → CaCl2 + 2H2O It is given that,amount of solid…

Q: Calcium carbonate is used to treat calcium deficiencies in the body.  Your body needs calcium to…

A: Since we know that Molarity = number of moles of solute/Volume of solution in Liter  To solve this…

Q: The therapeutic concentration—the concentration needed to be effective—of acetaminophen (C 8H 9NO 2,…

A: a) 1 ppm is equivalent to 1 mg/L of solution.  Thus 15 ppm will be equivalent to 15 mg/L. Conversion…

Q: How many grams of solute are needed to make 685 mL of 5.72x10^-2 M potassium sulfate?

A: Molarity of a solution is determined by dividing the number of moles of soluteby the volume of the…

Q: If 7.3 kg of Na2CO3 are dissolved to make 9.9 L of solution, what is the concentration of CO32- ?

A:

Q: The concentration of the sugar glucose (C6H12O6) in human blood ranges from about 80 mg/dL before…

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Q: Determine the number of moles of AgNO3 in 25.0 ml of 0.600 M AgNO3. Show solution.

A: Given,  The number of moles of AgNO3 present in 25.0 mL of 0.600 M AgNO3 solution is:

Q: 12. Lightly scented oils, such as jojoba oil, can be used as carrier oils for strongly fragrant…

A:

Q: Blue brilliant dye has a concentration of 24.6 (uM) in Gatorade. What is the concentration of Blue…

A: Given;

Q: 2.37 L solution containing 1.30 mol L-1 potassium hydroxide (KOH) has been left on your bench. How…

A: Given-> Volume of KOH = 2.37L Molarity of KOH = 1.30 mole/L

Q: blö 5 How many grams of Na3PO4 required * ?to prepare 8 N in 500 ml 323.6 gm. 218.6 gm. O 656 gm. O

A: Given that , Normality of the solution = 8N Volume of solution is = 500 ml. we have to calculate how…

Q: If 56.1 grams of NaCl are dissolved in 44.0 mL of Sulfuric acid, H2SO4 Sulfuric acid has a density…

A: Molarity: It can be defined by saying the number of moles of the solute dissolved per liter of the…

Q: The concentration of PO lons in (M) found in a solution of 3 M H3PO4 is (Ka1 7.1X10 3, Ka2 6.3X10 8…

A:

Q: 3. 184 g of C2H5OH dissolved in 400 g of H2O 4. 600 g of C3H7OH dissolved in 600 g of H20

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Q: How many mL of water should be added to 21.13 mL of 0.746 M silver nitrate to prepare 0.397 M silver…

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Q: Kw = 2.92 x 10-14 @ 40 °C - What is the concentration of H3O+ in water at 40 °C? H3O+ = [?] x 10¹ M

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Q: A lactated Ringer’s solution for intravenous fluid replacement contains 109 mEq of Cl− liter of…

A: In Ringer's lactate solution chloride ions are from sodium chloride potassium chloride in water.…

Q: Name of chemical Molecular weight Amount used Number of millimoles Ethyl acetoacetate 130.14 g/mol…

A: Given: Table of ingredients with chemicals, their molecular weight, amount used and number of…

Q: A student took 6 g ethanol (density 1.5g/ml) and made a cream of them whose total weight = 200g,…

A: The mass of ethanol is = 6 g The total mass of ethanol and cream is = 200 g The percent…

Q: How do I find the moles of NaOH required to neutralise KHP? NaOH = 0.65M solution Moles KHP =…

A: Given,Mass of KHP = 3.3139 gMolar mass of KHP = 204 g/mol Moles of KHP can be calculated as:

Q: liters of a 4.00 M KCI solutions to obtain 0.100 mole of KCI

A: The molarity of the solution is defined by the mole of solute present in one liter of solution. The…

Q: Calculate the molarity of a solution made by dissolving 20.0 g of calcium chloride in 200.0 mL of…

A: Given : Mass of calcium chloride i.e CaCl2 = 20.0 g Volume of solution = 200.0 mL = 0.2000 L…

Q: C. How many grams of hydrochloric acid can be neutralized by 66.9 g of magnesium hydroxide?

A: Solution:- Given Reaction:- Mg(OH)2 + HCl → MgCl2 + H2O                  Balanced Chemical…

Q: Calculate the volume of 0.169 M HNO₃ required to neutralize 25.0 mL of 0.250 M NaOH.

A: Given :-  Molarity of HNO3 solution = 0.169 M  Molarity of NaOH solution = 0.250 M  Volume of NaOH…

Q: Convert the concentration of 0.700 M NazSO. to g/mL

A: W = M x MM x V/1000 Where, W = mass of solute in g; M = molarity of solution; MM = molar mass of…

Q: solution of sodium nitrate by measuring out 37.9g of sodium nitrate into a 50.mL volumetric flask…

A: A numerical problem based on molarity concept, which is to be accomplished.

Q: A particular toothpaste contains 0.17 g NaF in 75 mL toothpaste. What is the molarity of NaF in the…

A: Molarity (M): It is the number of gram moles of solute dissolved per litre of solution. It SI Unit…

Q: (2) lulai How many grams of NaOH would be required to neutralize all the acid in ?75.0 mL of O.0900…

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Q: What is the % concentration (m/v) of a solution prepared by dissolving 28.3 of NaOH in enough water…

A: Given, mass of NaOH = 28.3 g Volume of solution = 789 ml % (m/v) = ?

Q: Ringers solution ( not lactated Ringers) is a mixture of three salts in water. It contains 8.6 g of…

A: A question based on concentration terms that is to be accomplished.

Q: Explain why bubbles of CO2(g) form when you open a bottle of soda.

A: Bottle soda contains dissolve co2 gas. It's solubility depends on pressure

Q: how to prepare 10% sucrose soljtion from 10gs of sucrose and 90ml of PBS?

A: Mass of sucrose = 10 g Volume of PBS = 90 ml

Q: If I mix 21.24 mL of 1.000 M HCl, 13.42 mL of 0.005000 M I2, 5.89 mL of 4.000 M acetone, and 14.74…

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance.…

Q: 2. In the background information, it was stated that CaF2 has solubility, at room temperature, of…

A: The moles of calcium fluoride dissolve in 100g of water is

Q: How many mL of 0.40 M CuSo4*5H2O are needed to make 10.0 mL of 0.080 M CuSo4*5H2O?

A:

Q: = Find the number of moles and millimoles of benzoic acid (M = 122.1 g/mol) that are contained in…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Calculate the volume of silver nitrate (0.1 M) equivalent to 3.12 x 10-5 mole/L in 100 ml of…

A: Recall the following relation to calculate volume of silver nitrate solution…

Q: An enzyme stock solution is 100 µg/µL. The stock solution is serially diluted 4 times by a dilution…

A: Dilution means addition of solvent to a solution in order to decrease its concentration. Dilution…

Q: what is the concentration of chloride ions when 0.225 moles of FeCl2 is dissolved in 551 mL of…

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Q: 1. How many grams of magnesium hydroxide are needed to neutralize 292g of HCL? How many grams of…

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Q: How many moles of NaOH are there in 22.5 mL of 0.97 mol/L NaOH solution? Keep 3 decimal places for…

A: as per Q&A guidelines of portal I solve first question because it comes under multiple question…

Q: 2. Household bleach is one of the most commonly used disinfectants this pandemic. Its major chemical…

A: NOTE

Q: Phosphate that is added to our drinking water forms a protective layer of lead phosphate on the…

A: Solution: 1 ppb = 1 microgram / L So, 39 ppb lead = 39 microgram/L                           = 39 x…

Q: How do you make 200 mL of 0.1 M solution of a substance that has a molecular weight of 121.1 g/mol?

A:

Q: In the equation below what is the mole ratio between Na2SO4  and H2O? 2 NaOH (aq) + H2SO4(aq) → 2…

A: The balanced reaction is -  2NaOH (aq)+ H2SO4 (aq)→2H2O(l)+ Na2SO4(aq)

Q: A fluoridated water supply contains 3 mg/L of F-. What is the maximum amount of Ca 2+, expressed in…

A: Let S be the solubility of CaF2. Now let us express the amount of Fluoride in mol/L (M), it's…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".