please follow the page numbers
serially as written on the top corner of every page :1,2 then
3.
estion is: A 1.276 g mixture of the solid salts Nm,SO. (142.04 g/mol) and Pb(NO3)2 (331.18...
Experiment 8 Prelaboralory A Limiting Re lab Sec. Name L A 1146g mixture of the solid salts Na SO, and PtINOJ; forms an aqueous Desk Ne solution with the precipitation of PhSO. The precipitate was filtered and dried, and ins mass was determined to be 0.672 g. The limiting reactant was determined to be Na SO. a. Write the molecular form of the equation for the reaction. b. Write the net ionic equation for the reaction. many moles and grams...
4. a. A sample of a CaCI 2HO/K C,0, HO solid salt mixture is dissolved in -150 mL of deionized water previously adjusted to a pH that is basic. The precipitate, after having been filtered, was air-dried and weighed. Data for Trial I were obtained as shown. Complete the following table. (See Report Sheet.) Record calculated values with the cor- rect number of significant figures. A. Precipitation of CaC,0,H from the Calculation Zone Salt Mixture 3. Mass of salt mixture...
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
A 1.225-g white solid mixture of [CaCl2
2H2O (147.02 g/mol) +
K2C2O4
H2O (184.24 g/mol)] was dissolved in 150 mL of deionized
water, heated and then cooled. The mass of the air-dried product
[CaC2O4
H2O (146.12 g/mol)] after filtration was 0.385g. A test
revealed the limiting reactant is
K2C2O4
H2O. Calculate the percentage of excess reactant
in salt mixture.
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6. A 1.500 g sample of a mixture of solid Na PO, 12H.O mixed with NaCl, was dissolved in water, reacted with aqueous 1 M SrCl, and 0.520 g Sr.(PO), precipitate was collected and dried to a constant mass. If the reagent tests demonstrated that Na PO:12H.O was the limiting reactant in the precipitation reaction, calculate the mass percent of Na PO, 12H 0 in the original sample. a. How many moles of Sr,(PO), were produced? b. What is the...
I need help plotting the mass of precipitate versus moles of
Pb(NO3)2 .
Reaction Equation: Pb(NO3)2 + 2KBr →
PbBr2 + 2KNO3
Volume (mL) Solution Mixture 0.50 M Pb(NO3)2 0.50 M KBT 2.00 18.00 4.00 16.00 6.00 14.00 8.00 12.00 10.00 10.00 12.00 8.00 14.00 6.00 16.00 4.00 18.00 2.00 Data Collection | Experimental Data Assignment Number Volume Pb(NO3)2 16m Moles Pb(NO3)2 Volume KBr 114 mL Moles KBT Mass of watchglass and filer paper (g) 28.7455 | 1st heating: Mass...
question 4 and 5
4. A 2.00-g sample mixture of CaCl 211O and K:CO H:O is added to water. Afler drying, the mass of the recovered CaC O HO precipitate is 0.654 g. Upon addition of K.CO HO to the supernatant there is a small amount of precipitate formed indicating that K CO.H O is the limiting reactant. What is the percent composition of the salt mixture? Suppose that the CaCO..Ha0 in question 4 is mistakenly dried at 120°C rather...
Limiting reactant help??
Unknown number Pial Tared mass of salt mixture (g) 1003 2 209-30Bg Mass of filter paper (g) . Mass of filter paper and Ba(PO,) (g) 4. Mass of Ba,(PO)(g) . Determination of Limiting Reactant . Limiting reactant in salt mixture (write complete formula) 2. Excess reactant in salt mixture (write complete formula) ata Analysis 1. Moles of Ba,(PO, precipitated (mol) 2. Moles of limiting reactant in salt mixture (mol) Naa P04 Jodium phosphate barinnn ch10万de . formula...
A sample of CaCl2⋅2H2O/K2C2O4⋅H2O solid salt mixture is dissolved in ~100 mL de-ionized H2O. The oven dried precipitate has a mass of 0.233 g. The limiting reactant in the salt mixture is K2C2O4⋅H2O. CaCl2⋅2H2O(aq) + K2C2O4⋅H2O(aq) --> CaC2O4⋅H2O(s) + 2KCl(aq) + 2H2O(l) starting material (SM) product Molar Mass (MM) g/mol: CaCl2⋅2H2O = 147.02 K2C2O4⋅H2O = 184.24 CaC2O4 = 128.10 Determine Mass ofK2C2O4⋅H2O(aq) in Salt Mixture in grams. Answer to 3 places after the decimal and include unit, g Do calculation all at once,...
A precipitation reaction occurs when 749 mL of 0.846 M Pb(NO3)2 reacts with 375 mL of 0.810 M KI, as shown by the following equation. Pb(NO3)2(aq) + 2 Kl(aq) – PbL,(s) + 2 KNO, (aq) Identify the limiting reactant. O Pb(NO3)2 ОРЫ, OKI O KNO, Calculate the theoretical yield of Pol, from the reaction. mass of Pble: Calculate the percent yield of Pbl, if 50.6 g of Pol, are formed experimentally. percent yield of Pbl Suppose 57.2 mL of a...