Using a 10mL pipette, you prepare a standard solution by pipetting 10.00mL of the standard iron solution [0.25g/L] into a 100mL volumetric flask. Then, using a 25mL pipette you transfer a 25mL aliquot of this solution into a 250mL volumetric flask and dilute up to the mark. Calculate the % uncertainty

Q: An impure sample of 0.1002 g benzoic acid underwent purification by recrystallization. A mass of…

A: Given data:Mass of impure sample of benzoic acid that underwent purification = 0.1002 gMass of pure…

Q: In running a Beer’s Law lab, you are given 50.00 mL of a 25.00 µM solution of the organic pigment…

A: The initial concentration of crystal violet is 25.00 µM and volume of this solution is 50.00 mL…

Q: Moles of base used in titration Moles of acetic acid neutralized in vinegar sample

A: neutralization reaction is th2e reaction between the acid and base. for neutralization reaction, M1…

Q: The instructor reveals that the weak acid is hypochlorous acid, HOCl. The known Ka for HOCl is…

A:

Q: When you walked in to lab today, you noticed that your partner group had a 0.05432 ml mixture sample…

A: The mixture which is immisible can be separated easily by various techniques. For example: Water can…

Q: Identify whether the following are examples of systematic or random error or are mistakes: a. Using…

A: The random error causes one measurement to differ slightly from the next. It comes from…

Q: The formula weight of CaCO3 is 100.087 ±0.004 g/mol. You are preparing a standard solution of CaCO3…

A:

Q: Please solve question correctly with correct number of significant figures and the correct absolute…

A:

Q: une Emmanuel Lab Partner(s): Martin k / Martin 0 Data Sheet volume of unknown sample (mL) mass of…

A: volume of unknown sample (mL)40.0mass of filter paper (g)0.57mass of filter paper + solid Ba3(PO4)2…

Q: What quantity of moles of glucose (C6H12O6) is in 0.500 solution? L of a 0.400 M

A: Given :Volume of solution = 0.500 Lmolarity of solution = 0.400 M = 0.400 mol / LWe need to…

Q: What is the answer to this equation with the correct number of significant figures? I tried both…

A: We have to solve the given equation.

Q: An aqueous solution is made of the diprotic acid H₂A to a concentration of 0.11 M H₂A. K₂1 -3.0 x…

A: Given:-   An aqueous solution is made of the diprotic   acid H2A  Concentration of H2A = 0.11 M  Ka1…

Q: A stock solution of 7.99 microM dye is provided. While making one of the standard solutions, a…

A: Given data :

Q: How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose

A: Mass by volume percentage is the mass of solute particles dissolved per unit of solvent.

Q: I need help finding the %Composition for %cychohexane and %toluene. The formula (area of peak/total…

A: To determine: % composition for Cyclohexane and toluene

Q: A chemistry student weighs out 0.146 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: PERCENTAGE COMPOSITION FIND THE PERCENTAGE COMPOSITION OF THE FOLLOWING COMPOUNDS. THE FIRST ONE IS…

A: Percent composition of an element tells us about percent by mass of each element  present in a…

Q: 500mM K2Cr2O7 solution (0.500 mol/L) About 36.775 g of K2Cr2O7 (MM = 294.20 g/mol) was weighed on an…

A: given, the weight of K2Cr2O7 taken = 36.775 g the molar mass of K2Cr2O7 = 294.20 gmol-1 molarity of…

Q: A student creates a calibration plot for serial dilutions of Cu(NO3)2. A graph of concentration in M…

A: Given : y = 0.345x - 0.11 Mass of solution = 100 grams  To find  :  Grams of Cu ( NO3 )2 Grams of…

Q: What is the mass in grams of NaCN in 120.0 mL of a 2.40 x 10s M solution?

A: Mass of NaCN = ? Molar Mass of NaCN = 49 g mol-1 Molarity of NaCN = 2.40 × 10-5 M…

Q: None

A:

Q: Sources of error: Method 1  Equipment: About ten grams of NaHCo3.  10 ml distilled water Small…

A: The purpose of this experiment was to utilize the gravimetric method for determining the…

Q: None

A: Step 1:(34.123+8.60)/(98.7654−5.652) =(42.723)/(93.1134)=0.45882762309184  I Step 2: Step 3: Step 4:

Q: if you diluted the amount of ferric nitrate to 20.0m of 6.0X10-4 M then you would need to weigh 4.8…

A: if you diluted the amount of ferric nitrate to 20.0m of 6.0X10-4 M then you would need to weigh 4.8…

Q: Chemistry A KCl solution (Mm = 74.55 g/mol) was prepared by diluting 0.3473 ± 0.0002 g in 250.0 ±…

A: #A: Given the mass of KCl taken = (0.3473 ± 0.0002) g Molar mass of KCl = 74.55 g/mol Required…

Q: Data of candy (trial 1) Mass of candy: 6.1115g Concentration of NaOH (M): 0.09639 Volume of NaOH…

A: Interpretation: We have to determine the volume of NaOH required at the end point .

Q: 1.  How many milliliters of 53.40(±0.06) (w/w) % NaOH with a density of 1.52(±0.01)g/mL will you…

A:

Q: A lab group was supposed to make 12 mL of a 29% acid solution by mixing a 20% solution, a 27%…

A:

Q: Show your complete solution and round-off your answers to four decimal places.   A 0.1093-g sample…

A: Number of mmol = Molarity x Volume (mL) Na2CO3  +  2AgNO3  ----->  2NaNO3  +  Ag2CO3 KSCN  +…

Q: A 0.2 g sample of NazC204 consumed 30.92 mL of KMNO4 to reach the faint pink endpoint in the…

A:

Q: 72.1 g C2 H6O in 2.18 L of solution Express your answer using three significant figures. ΑΣφ…

A: Molarity = number of moles of solute÷ volume of solution in L

Q: The pH of a solution is 5.30 + 0.01. What is the concentration of H* in the solution and its…

A: Given data is as follows: The pH of the solution =5.30±0.01 As we know that; pH=-logH+ The hydronium…

Q: You have to make a product that contains 20 doses of 2 mg/4 mL of morphine sulfate (soluble 1 in…

A: I apologize for the confusion. Let's re-evaluate the problem to correctly complete the working…

Q: The pH of a solution is 5.84 + 0.05. What is the concentration of H* in the solution and its…

A: From given datas  Molar concentration of H+ and absolute uncertainty is calculated with suitable…

Q: An analytical chemist weighs out 0.131 g of an unknown monoprotic acid into a 250 mL volumetric…

A: 1st We calculate moles of base by multiplying molarity by volume.nbase =M * V      =  0.12  mol L-1…

Q: Starting from the primary standard solution in Question 4 and using the dilution scheme in Figure 1,…

A: The amount of solute that is dissolved in a specified volume of a solvent yields a solution. The…

Q: Based off information from the attachment, please help with #9 on second attachment

A: We have been asked to provide help with question #9. Final volume of isopropanol ice solution = 70ml…

Q: A stock solution of 0.225 +/- 0.003 M NaNO2 was transferred to a 100 mL volumetric flask (class A)…

A: Given that, Concentration of stock NaNO2 = 0.225 ± 0.003M 7 ml of stock NaNO2 is added to 100 mL…

Q: The pksa, value of calcium fluoride is 10.41. Calculate the solubility in g/L at 25 °C in: a. pure…

A: First we would Calculate Ksp from given pKsp .  a.) We would write ICE table for ionization of water…

Q: Q3/ How many grams of NaAsO, should be weighed out to prepare a stock solution of 100 mg/L in 500 mL…

A: A numerical problem based on quantitative analysis, which is to be accomplished.

Q: What is the absolute uncertainty and relative uncertainty of the molarity of the solution?   M =…

A:

Q: You measure 15.0 mL of the H2C2O4 solution with a 100-mL graduated cylinder and add it to a 125-mL…

A: Titration is useful in determining the unknown concentration of a solution ghaing known volume.…

Q: Data of Candy Mass of candy: 6.1115g Concentration of NaOH (M): 0.09639 Volume of NaOH solution…

A: The acid-base titrations such as sodium hydroxide versus hydrochloric acid can be used to determine…

Q: (CHCl)  (0.01000 liters )    =     (CNaOH)  (volume of NaOH in liters).                CNaOH is the…

A:

Q: Using the calibration curve below (equation of the line: y=0.0039x + 0.9981) to determine the…

A: The graph for Density vs % sugar is given below :