of 6 First 15 g addition Second 15 g addition Third 15 g Fourth 15 g addition addition Total volume of water plus 21.68 23.36 25.03 26.71 unknown metal (mL) Total mass of unknown metal (g) 15.000 30.000 45.000 60.000 average density: g/mL

Q: How much water, in mL, needs to be added to 29.7 mL of 11.2 M HNO3 to make a 6.05 M solution with…

A: Given values,  V1 = 29.7mL N1=11.2M N2=6.05M And V2=?

Q: A chemist prepares a solution of copper(II) sulfate (CuSO,) by measuring out 20.7 g of copper(I1)…

A: Given :-  mass of copper(II)sulfate = 20.7 g  volume of solution = 500 mL  To calculate :-…

Q: Be sure to answer all parts. Enter your answer in scientific notation. Carry out the following…

A:

Q: I need help in calculating the total mass of the unknown #2 sample of copper. The following chemical…

A: The given equations are: 2 Cu2+ + 4 I-  ----> 2 Cus + 2 I2  I2 + 2 S2O3-2 ----> 2 I- +S4O6-2…

Q: 9. If you pour 60 grams of KCl into 100 g of water at 70°C, and stir vigorously, which type of…

A: 9. Given information,   Mass of KCl = 60 g   Mass of water = 100 g   Temperature = 70oC

Q: A laboratory technician needs 1.00 L of 0.125 mol/L sulfuric acid solution for a quantitative…

A:

Q: Convert the following measurement. =0.00397 (kg)/(mol x dL) = ? (g)/(mol x L)   I dont know what…

A:

Q: A chemist mixes 81.4 g of benzene with 49.9 g of heptane and 10.0 g of 2-ethyltoluene. Calculate the…

A: Mass percent is the percent ratio of mass of element to the total mass of the compound.

Q: Calculating molarity using solute mass A chemist prepares a solution of barium acetate (Ba(C,H3O2),)…

A:

Q: What is the mass percent of the methanol?

A: We have to find mass percent of the methanol

Q: A solution is made using 200.0 mL of methanol (density 0.7920 g/mL) and 951.1 mL of water (density…

A:

Q: solution is made using 450.0 mL of isopropanol (density 0.7860 g/mL) and 953.5 mL of water (density…

A: Given :  Volume of isopropanol = 450 ml  Density of ispropanol = 0.7860 g.ml-1  Volume of water =…

Q: A pool cleaning solution is mixed from three different bottles of solution. The first bottle…

A:

Q: the diameter of a 16-gauge wire has a diameter of 0.05082 in. what length of wire in meter is found…

A: Diameter = 0.05082 inch. 1 inch = 2.5cm. 0.05082 inch = .05082 × 2.5 = 0.12705 cm.  Mass = 1.60lb =…

Q: Al has density 2.70 g/cm3. If a solid Al cylinder is added to a cylinder which has 19.2 mL H2O, the…

A: To calculate the mass of the Al cylinder.

Q: To measure the blood Ca2+ concentration of a patient’s sample, 5.00 mL of blood was diluted to a…

A: To solve this question we have to careful about units and how many times successive dilution was…

Q: 4. When 2.00 grams of KMN04 is dissolved into 100.0 mL of solution, what normality results? How many…

A: Molarity is defined as the number of moles of solute dissolved in 1 L of solution while normality is…

Q: A student used weighing by difference and recorded the following results. Mass of boat/g Mass of…

A: Mass of boat = 0.1248 gMass of boat and solid = 0.2643 gMass of empty boat = 0.1261 g

Q: A solution is made using 200.0 mL of methanol (density 0.7920 g/mL) and 1035.1 mL of water (density…

A: Volume of methanol = 200.0 ml  Density of methanol = 0.7920 g/ml  Volume of water = 1035.1 ml…

Q: How many milliliters of a 4.10 M sucrose solution would be needed to prepare each solution? Note:…

A: Milliliters of Sucrose Solution NeededWe can use the dilution equation to find the volume of the…

Q: A volume of 25.00 mL of the original solution was diluted to a total volume of 100.0 mL and then…

A: If we take a definite amount of solution and then dilute it with by adding of water the mole of…

Q: A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 1011.1 mL of water (density…

A: The mass percent is the ratio of the mass of solute in the given mass of solution multiplied by 100.…

Q: A chemist makes 920. mL of zinc nitrate water. mol (Zn(NO3)₂) working solution by adding distilled…

A: Answer: To dilute a solution water is gradually added into the stock solution. Number of moles of…

Q: I have all the data I just need the Conclusion and the question answers. Data Table 3: Solution…

A: The solubility of NaCl and KNO3 increases with increasing the temperature and NaCl is more soluble…

Q: A solution is prepared by mixing 13.4 mL of 1-propanol (C3HgO, d= 0.803 g/mL MW= 60.11g/mol) with…

A:

Q: A stock solution of sodium chloride solution was prepared (at 25°C) by dissolving 250 mg of sodium…

A: Ammonium hydroxide is NH4OH. It will dissociate as : NH4OH(aq.)↔ NH4+ (aq.) +  OH- (aq.) Here,…

Q: A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 1087.1 mL of water (density…

A: Given,volume of methanol = 200.0 mLdensity of methanol = 0.792 g/mLvolume of water = 1087.1…

Q: A chemist prepares a solution of zinc nitrate = (Zn(NO3)₂) by measuring out 22.6 g of zinc nitrate…

A: We will first convert the mass of Zn(NO3)2 to moles. To do that we will require the molar mass of…

Q: A solution is prepared by dissolving 21.0 gg of NaOHNaOH in 130.0 gg of water. The NaOHNaOH solution…

A:

Q: How many grams of water must be used to prepare a 17.0 percent by mass (%m/m) sodium hydroxide…

A: Since % m/m is defined as  % m/m = mass of solute X 100 / mass of solution  mass of solute (NaOH)…

Q: concentration

A: According to the question, a chemist adds 425.0 mL of a 34.5 g/dL sodium hyposulfate (Na₂S₂O3 )…

Q: Calculating A chemist prepares a solution of calcium sulfate (CaSO) by measuring out 0.79 g of…

A:

Q: Measured Mass of NaCI: 11.70 g Measured Volume of Water: 100.0 mL Answer each question with correct…

A: Information about the question

Q: A solution is made using 250.0 mL of ethanol (density 0.7892 g/mL) and 493.1 mL of water (density…

A:

Q: 50.00 ml of sulfuric acid was put in a 250 mL flask.  100 mL of 2.50 mol/L potassium hydroxide was…

A: Given that,  Volume of H2SO4 in 250.0 mL flask V1 = 50.0 mL Molarity of H2SO4  solution M1 = ?…

Q: A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 563.1 mL of water (density…

A: Given DataVolume of methanol = 200.0 mLDensity of methanol = 0.792 g/mLVolume of water = 563.1…

Q: What is the molarity (moles/L) when 16.6 mL of 8.26 M NaNO3 is diluted by adding 31.8 mL of water?

A: For Original NaNO3 solution, Molarity, M1 = 8.26 M Volume, V1 = 16.6 mL   For Diluted NaNO3…

Q: A salt solution was evaporated on a hot plate. The dish holding the solution had a mass of 238.7564…

A: Given,  Mass of the dish=238.7564g Mass of the dish ( with dried salt) =241.5823g

Q: Suppose 345. mL of dioxane and 298. ml. of toluene are mixed, and the final solution has a volume of…

A: Volume of dioxane = 345 mL Volume of toluene =  298 mL Final volume of the solution = 637 mL Density…

Q: Use the algebraic equation to determine the mass if the volume was 622 mL.  mass (g) = (3.60…

A: Given, mass (g) = (3.60 g/mL)(volume (mL)) + 11.4 g y= mass (g) m = 3.60 g/mL x= 622 mL b = 11.4 g

Q: A solution is made using 250.0 mL of ethanol (density 0.7892 g/mL) and 613.1 mL of water (density…

A: The objective of the question is to calculate the mass percent of ethanol in a solution made by…

Q: A certain liquid X has a normal boiling point of 105.70°C and a boiling point elevation constant…

A: The boiling point of the pure liquid = 105.70 0C. The boiling point of the solution = 107.3 0C.…

Q: 90 80 NH,CI 70 HCI 60 KCI 50 40 NaCl -KCIO, NH, 30 20 10 0- 10 20 30 40 50 60 70 80 90 100…

A: Solubility of KNO3.

Q: 4.  A solution is prepared by taking a clean and dry 50.00 mL volumetric flask.  Some sucrose (Mm…

A: The objective of this question is to calculate the mole fraction of water in a solution prepared in…

Q: The German company Surig sells Essigessenz, which is reported to be 30% acetic acid by mass vinegar.…

A: Mass of the vinegar sample taken for titration = 10.261 g  Molarity of NaOH taken for titration =…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.