Q: A student weighs out 5.81 g of NaBr, transfers it to a 250. mL volumetric flask, adds enough water…
A: Given that: Mass of NaBr = 5.81g Molar mass of NaBr = 103g/mol Total volume in the flask = 250mL=…
Q: A 9.44 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…
A: Given that : The mass of the sample = 9.44 g The volume of barium hydroxide = 29.4 mL The molarity…
Q: In the laboratory a student combines 31.8 mL of a 0.232 M sodium sulfate solution with 24.7 mL of a…
A: Number of moles of solute devided by volume of solution in liter is known as molarity.
Q: An aqueous solution of sodium hydroxide is standardized by titration with a 0.117 M solution of…
A:
Q: A volume of 11.0 mL of a 0.18 M solution of hydrogen phosphate (or phosphoric acid) reacts…
A:
Q: What is the molarity of a solution of calcium chloride which contains 33500 mg of solute in a total…
A: Molarity is calculated using formula : Molarity = Moles of soluteVolume of solution (L) Note : As…
Q: A 1.00 L NAOH stock solution has a molarity equal to 0.5 M, what is the final concentration when 200…
A: During dilution of a solution, moles of solute are unaffected
Q: An aqueous solution is 6.00% by mass ethanol, CH,CH,OH, and has a density of 0.988 g/mL. The…
A: Any solution's mass percentage (w/w) reflects the solute's mass dissolved into specified volume used…
Q: 4.27 mL of a 0.283 M NAOH solution reacts completely with 4.70 mL of HCI solution according to the…
A: Given :- Molarity of NaOH solution =0.283 M Volume of HCl solution =4.70…
Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 475.0 mL of 0.350 M barium chloride…
A: Answer:- This question is answered by using the simple concept of calculation of resultant…
Q: The 1250 mL bottle of Lindeman's Shiraz wine in my kitchen is 10.75 % ethanol by volume. The density…
A:
Q: In a titration, 25.00 ML of 0.300 M sodium hydroxide solution is exactly neutralized by 37.5 ML of a…
A: Given: Volume of sodium hydroxide, V1 =25.00 mL Concentration of sodium hydroxide, M1 = 0.300 M…
Q: If 35.3 mL of a 0.288 M hydrochloric acid solution is needed to neutralize a solution of potassium…
A:
Q: A 5.00-g sample of vinegar is titrated with 0.108 M NaOH. If the vinegar requires 39.1 mL of the…
A: Given: The mass of the vinegar=5.00 g The concentration of NaOH=0.108 M The volume of NaOH=39.1m…
Q: One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite (NaOCI) by…
A: Molarity is defined as a number of moles of solute dissolved in one liter of solution.…
Q: Calculate the molarity of a KNO, solution prepared by adding 10.1103 g KNO, in a 250 mL volumetric…
A:
Q: An aqueous solution of calcium hydroxide is standardized by titration with a 0.124M solution of…
A: We have to predict the Molarity of calcium hydroxide.
Q: Most household bleach contains sodium hypochlorite, NaOCI. A 2.84 L bottle contains 177 g NaOCI.…
A:
Q: 6. How many moles of aluminum oxalate, Al(COs are needed to make 435 ml. of a 2.93 M solution? 7.…
A: Molarity = moles of soluteVolume of solution moles of solute = grams of soluteMolar mass
Q: A 2.00-L bottle of a solution of concentrated HCl was purchased for the general chemistry…
A: Molarity of a solution is defined as number of moles of a given solute per litre of the solution. It…
Q: In the laboratory, a student adds 45.1 mL of water to 10.6 mL of a 0.773 M hydrobromic acid…
A: Given : Initial concentration of hydrobromic acid i.e HBr = 0.773 M Initial volume of HBr solution =…
Q: When 900mL of a lead (II) nitrate solution of unknown concentration has an excess of sodium chloride…
A: step1: Given,Volume of pbNO32 solution=900mL=0.900Lmass of solid filtered out=6.34gExcess…
Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 375.0 mL of 0.350 M barium chloride…
A: Given : Molarity of iron (III) chloride (FeCl3) =0.250 M Volume of iron (III) chloride…
Q: 4. The density of 20.0% NaOH (by weight) is 1.22 g/mL. What is the molarity of 20% NaOH?
A:
Q: If 50.0 mL of 0.125 M HCl solution and 50.0 mL of 0.125 M NaOH are mixed, what is the molarity of…
A: Given, 50mL of 0.125M HCl 50mL of 0.125M NaOH are mixed and have to calculate the…
Q: 41.53 mL of a 2.76 M NAOH solution reacts completely with 49.19 mL of HCI solution according to the…
A: Molarity = number of moles/volume of solution (in L) So, Number of moles = molarity x volume (in…
Q: How many milliliters of an aqueous solution of 0.218 M sodium iodide is needed to obtain 16.8 grams…
A: As we have two question but here only i am performing first question: milliliters of an aqueous…
Q: When 75.0 mL of a magnesium nitrate solution of unknown concentration had an excess of sodium…
A: Magnesium nitrate reacts with sodium hydroxide to form the precipitate of magnesium hydroxide and…
Q: a. What is the molarity of a solution of calcium chloride which contains 33500 mg of solute in a…
A:
Q: In the laboratory, a student adds 58.2 mL of water to 15.5 mL of a 0.771 M hydroiodic acid solution.…
A: According to the equation:
Q: In the laboratory a student combines 23.6 mL of a 0.117 M aluminum bromide solution with 11.9 mL of…
A: It is given that 23.6 mL of 0.117 M of aluminium bromide is combined with 11.9 mL of 0.353 M of…
Q: The concentration of sodium chloride in blood serum is 0.140 M. What volume of blood serum contains…
A: Molecular weight of NaCl = (23+35.5) = 58.5 gm/mol So, 6.07 gm of NaCl = 6.07/58.5 = 0.10376 moles…
Q: If a student dilutes 16.34 mL of 2.75 M HCl to 25.00 mL, what is the concentration of the resulting…
A:
Q: A student weighs out a 15.8 g sample of aluminum bromide, transfers it to a 300 mL volumetric flask,…
A: Volume of solution= 300 ml Mass of aluminium bromide (m) = 15.8 g
Q: Exactly 6.60 M of an aqueous lithium chloride stock solution is used to create 600. mL of a 0.300 M…
A:
Q: A student pipets 18 mL of a 0.0459 M solution of CaCl2 into a 100.00 mL volumetric flask and dilutes…
A: Given Initial Volume of solution ( V1 ) = 18 mL Molarity ( M1 ) = 0.0459 M Final Volume of…
Q: In the laboratory a student combines 21.9 mL of a 0.211 M iron(II) iodide solution with 30.0 mL of…
A: Given- Concentration of iron (||)iodide solution= 0.211M Volume of iron (||) iodide solution =21.9…
Q: If 100.0 mL of potassium dichromate solution (10.0 g of K2Cr207 per liter) was mixed with 75.0 mL of…
A:
Q: Suppose that you pipette a 9.00 mL aliquot of an aqueous 0.589 M solution of glucose into a 150 mL…
A: The question is based on the concept of solutions. we are diluting a stock glucose solution. we…
Q: If 74.3 mL of 0.777 M HCl is diluted to a total volume of 152 mL and then 25.0 mL of the diluted HCl…
A:
Q: what is the molarity of the resulting solution?
A:
Q: In the laboratory a student combines 34.4 mL of a 0.228 M cobalt(II) chloride solution with 23.9 mL…
A: Calculate the number of moles of present in cobalt(II) chloride solution: 1 mL = 0.001 L One mole…
Q: You mix 500.0 ml of 0.250 M iron(III) chloride solution with 225.0 mL of 0.350 M barium chloride…
A: Iron Chloride, FeCl3 Molarity = 0.25 M and volume = 500 mL Barium chloride, BaCl2 Molarity = 0.35 M…
Q: A student weighs out 3.23 g of KBr, transfers it to a 125. mL volumetric flask, adds enough water to…
A:
Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 325.0 mL of 0.350 M barium chloride…
A: Molarity is defined as the number of moles of solute dissolved per liter of the solution. Molarity,…
Q: A student wants to prepare a solution of chromium(II) chloride with a known molarity. How many grams…
A:
Q: A 8.84 g sample of an aqueous solution of hydrobromic acid contains an unknown amount of the acid.…
A:
Q: You mix 500.0 mL of 0.250 M iron(III) chloride solution with 125.0 mL of 0.350 M barium chloride…
A:
Q: Determine the molarity of chloride when 5.573 g of AlCl3 is dissolved in 283.6 mL water.
A: The answer is given as follows
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Many over-the-counter antacid tablets are now formulated using calcium carbonate as die active ingredient, which enables such tablets to also be used as dietary calcium supplements. As an antacid for gastric hyperacidity, calcium carbonate reacts by combining with hydrochloric acid found in the stomach, producing a solution of calcium chloride, converting die stomach acid to water, and releasing carbon dioxide gas (which the person suffering from stomach problems may feel as a burp). Write die balanced chemical equation for this process.On Easter Sunday, April 3, 1983, nitric acid spilled from a tank car near downtown Denver, Colorado. The spill was neutralized with sodium carbonate: 2HNO3(aq)+Na2CO3(aq)2NaNO3(aq)+H2O(l)+CO2(g) a. Calculate H for this reaction. Approximately 2.0 104 gal nitric acid was spilled. Assume that the acid was an aqueous solution containing 70.0% HNO3 by mass with a density of 1.42 glcm3. What mass of sodium carbonate was required for complete neutralization of the spill, and what quantity of heat was evolved? (Hf for NaNO3(aq) = 467 kJ/mol) b. According to The Denver Post for April 4, 1983, authorities feared that dangerous air pollution might occur during the neutralization. Considering the magnitude of H, what was their major concern?For the following reaction, 65.1g of barium hydroxide are allowed to react with 40.9g of sulfuric acid barium hydroxide(aq)+sulfuric acid(aq)---barium sulfate(s)+water(l) what is the medium of barium sulfate that can be formed? what is the formula for the limiting reagent? what amount of excess reagent remains after the reaction is complete?
- The water in lakes that have been acidified by acid rain (HNO3 and H2SO4) can be neutralized by a process called liming, in which limestone (CaCO3) is added to the acidified water. What mass of limestone (in kg) would completely neutralize a 15.2 billion-liter lake that is 1.8 * 10 - 5 M in H2SO4 and 8.7 * 10 - 6 M in HNO3?Alum [KAl(SO₄)₂.xH2O] is used in food preparation, dyefixation, and water purification. To prepare alum, aluminum isreacted with potassium hydroxide and the product with sulfuricacid. Upon cooling, alum crystallizes from the solution.(a) A 0.5404-g sample of alum is heated to drive off the watersof hydration, and the resulting KAl(SO₄)₂weighs 0.2941 g. De-termine the value of xand the complete formula of alum.(b) When 0.7500 g of aluminum is used, 8.500 g of alum forms.What is the percent yield?Sodium peroxide (Na₂O₂) is often used in self-contained breathing devices, such as those used in fire emergencies, be-cause it reacts with exhaled CO₂ to form Na₂CO₃and O₂. How many liters of respired air can react with 80.0 g of Na₂O₂ if eachliter of respired air contains 0.0720 g of CO₂?
- Fluid therapy is a critical component in the clinical management of many medical patients. Theconcentration of saline solution (NaCl) recommended for this therapy depends on the medicalneeds of the patient. To maintain electrolyte balance, the doctor prescribes a dosage of no morethan 0.0077 moles of NaCl in 100 mL of the saline fluid. The available saline solution is 0.154M, packaged in 1-liter quantities. How many mL of this concentrated solution do you need toprepare 100 mL of the desired dosage?Consider the unbalanced chemical reaction equation : Na2SO4 (aq) + BaCl2 (aq) ---> BaSO4 (s) + NaCl (aq) Balance the reaction and how many millimeters of a 0.250 M BaCl2 solution are needed to react with 0.0325 L of a 0.160 M Na2SO4 solution?3. The concentration of acetylsalicylic acid, C9H8O4, in aspirin tablets is determined by hydrolyzing it to the salicylate ion, C7H5O3-, and de¬termining its concentration spectrofluorometrically. A stock standard solution is prepared by weighing 0.0774 g of salicylic acid, C7H6O3, into a 1-L volumetric flask and diluting to volume. A set of calibration standards is prepared by pipeting 0, 2.00, 4.00, 6.00, 8.00, and 10.00 mL of the stock solution into separate 100-mL volumetric flasks that contain 2.00 mL of 4 M NaOH and diluting to volume. Fluorescence is measured at an emission wavelength of 400 nm using an excitation wavelength of 310 nm with results shown in the following table. (a) Why is the excitation wavelength (310 nm) shorter than the emission wavelength (400 nm)?(b) How is the emission wavelength isolated from the excitation wavelength in a fluorescence instrument?
- On Easter Sunday, April 3, 1983, nitric acid spilled from a tank car near downtown Denver, Colorado. The spill was neutralized with sodium carbonate: 2 HNO3 (aq) + Na2CO3 (s) --> 2 NaNO3 (aq) + H2O (l) + CO2 (g) Calculate ΔH° for this reaction. Approximately 2.0 x 104 gal nitric acid was spilled. Assume that the acid was an aqueous solution containing 70.0% HNO3 by mass with a density of 1.42 g cm-3. How much sodium carbonate was required for complete neutralization of the spill, and how much heat was evolved? [ΔHf° for NaNO3(aq) = -467 kJ/mol] According to The Denver Post for April 4, 1983, authorities feared that dangerous air pollution might occur during the neutralization. Considering the magnitude of ΔH°, what was their major concern?Iron metal is reacted with hydrochloric acid to yield iron(II) chloride and hydrogen gas. A student reacts 7.54g of iron with 100.0 mL of 3.00M hydrochloric acid. He isolates 16.08g of the product.The balanced equation is Fe + 2HCI--->FeCl2 + H2 a. Determine the percent yield of the reaction I know that percent yield is the (actual yield/theoretical yeild) x 100, I am having a hard time finding the theoretical yield.To lift fi ngerprints from a crime scene, a solution of silver nitrate is sprayed on a surface to react with the sodium chloride left behind by perspiration. What is the molarity of a silver nitrate solution if 45.0 mL of it reacts with excess sodium chloride to produce 0.148 g of precipitate?