In the Dumas Method for the determination of the molar mass of an unknown vapor, the weight of the flask filled with water, and the weight of water are 378.56 g, and 252.68 g, respectively. What is the volume of the flask used, in mL, if the density of the water is 0.9977 g/mL? * 253.2625 O 0.2533 O 126.1702 0.1262

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A:

Q: Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium…

A: First we will write balanced equation, then using it calculate the amount of reactants left after…

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: The question is based on the concept of titrations.   we are titrating  a strong Sulphuric acid with…

Q: The molar mass of an unknown volatile liquid was determined using the Dumas method. From the…

A:

Q: A chemist adds 140.0 mL of a 0.514M aluminum sulfate (Al, (SO₂),) & solution to a reaction flask.…

A: Millimoles of aluminium sulfate =?

Q: Suppose 31.1 g of barium nitrate is dissolved in 200. mL of a 0.60 M aqueous solution of sodium…

A:

Q: An aqueous solution of potassium sulfate, K2SO4 , is made by dissolving 15.1 grams of potassium…

A: Given: Mass of K2SO4 = 15.1 g. And volume of solution filled = 250 mL = 0.250 L…

Q: 1)A solution of Na2CO3 is prepared by dissolving 0.511 g of the solid in approximately 30 mL of…

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

Q: What mass in grams (g) of Li3PO4  (MM=115.97 g/mol) is needed to prepare 125. mL of a solution…

A: Molarity (M) indicates the number of moles of solute per liter of solution (moles/Liter) and is one…

Q: Suppose 5.53g  of sodium chloride is dissolved in  100.mL  of a  0.50 M  aqueous solution of…

A:

Q: Suppose 2.04g  of potassium chloride is dissolved in  300.mL  of a  40.0mM  aqueous solution of…

A:

Q: A chemist prepares a solution of aluminum chloride (AICI,) by measuring out 49.6 umol of aluminum…

A: We have to express the concentration in mmol/L. It is given that 49.6 micromoles of AlC3 is used, So…

Q: Suppose 2.01g  of sodium nitrate is dissolved in  350.mL  of a  31.0mM  aqueous solution of…

A:

Q: A chemist prepares a solution of magnesium bromide (MgBr₂) by measuring out 45. mg of MgBr₂ into a…

A:

Q: A chemist adds 1.35L of a 1.6/molL iron(III) bromide FeBr3 solution to a reaction flask. Calculate…

A:

Q: carrying out Part 1 of this experiment, assume an excess of HCl(aq) reacts with 0.426 g of Mg(s). If…

A:

Q: How many moles of Mg3P2(s) can be produced from the reaction of 0.240 mol Mg(s) with 0.020 mol…

A: From a balanced chemical reaction we can calculate the mass of the reactants and products .

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: Suppose 5.25 g of nickel(II) bromide is dissolved in 100. mL of a 0.20 M aqueous solution of…

A:

Q: In a student experiment, the empirical formula of a copper halide was found by adding aluminum metal…

A: Empirical formula is the simplest chemical formula that represents a compound. It is related to…

Q: Suppose 0.775 g of sodium iodide is dissolved in 100. mL of a 57.0 m M aqueous solution of silver…

A: The molarity of a solution is calculated by dividing the moles of solute by the volume of solution…

Q: Suppose 1.47 g of zinc iodide is dissolved in 100. mL of a 76.0m M aqueous solution of potassium…

A: This question involves calculating the final molarity of zinc cation (Zn2+) in a solution that…

Q: Suppose 1.24 g of sodium chloride is dissolved in 200. mL of a 28.0 m M aqueous solution of silver…

A:

Q: Suppose 20.8 g of lead(II) nitrate is dissolved in 150. mL of a 0.70 M aqueous solution of ammonium…

A:

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Given: Volume of sample = 6.5 mL Volume of water added = 50 mL Concentration of NaOH = 0.5824 molar…

Q: A solution of CaCl, in water forms a mixture that is 38.5% calcium chloride by mass. If the total…

A: We have to calculate the mass of calcium chloride and water.

Q: A student was able to separate the three components of a mixture via liquid chromatography. She…

A: Given: The mass of component A = 1.27 g The mass of component B = 0.950 g The mass of component C =…

Q: Consider the chemical reaction :  2 Na3PO4 + 3 CaCl2 → Ca3(PO4)2 + 6 NaCl, what is the amounts in…

A: the reaction, 2 Na3PO4 + 3 CaCl2 → Ca3(PO4)2 + 6 NaCl weight of precipitate produced (Ca3(PO4)2) =…

Q: A chemist prepares a solution of potassium bromide (KBr) by measuring out 31. mg of KBr into a 100.…

A:

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Given : concentration of KI used = 0.010 M Volume of KI solution used = 5.00 mL = 0.005 L…

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

A: Balanced reaction between H2SO4 and NaOH is: Calculation of no. of moles of NaOH:

Q: Suppose 22.5g  of sodium bromide is dissolved in  250.mL  of a  0.50 M  aqueous solution of…

A: According to the question we have, The mass of the sodium bromide (NaBr) is given by = 22.5 gm The…

Q: A 0.674 M cobalt(II) chloride (CoCl₂) solution is prepared with a total volume of 0.0750 L. The…

A: Question is about the concentration of Cobalt (II) Chloride. We have to calculate the mass of Cobalt…

Q: A chemist adds 455.0 mL of a 5.23 mol L silver perchlorate (AgC10,) solution to a reaction flask.…

A: Volume of solution = 455.0mL. Molarity of solution = 5.23mol/L.

Q: Suppose 0.317 g of barium acetate is dissolved in 250. mL of a 48.0 m M aqueous solution of ammonium…

A:

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken…

A:

Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

A: Given: Concentration of salt dissolved in Lake Parsons = 28.44 g/L Average concentration of salt in…

Q: A chemist prepares a solution of vanadium(III) bromide (VBr) by measuring out 12. mg of VBr, into a…

A: Given, Note: 1000 mg = 1 g, 1000 mL = 1 L mass of VBr3 = 12. mg = 0.012 g Volume of the flask =…