A crucible and its cover weigh 65.82 grams. You add a hydrate of a salt and it now weighs 83.77 g heat the crucible, cover slightly ajar, until the contents are completely dry and it now weighs 81.06 9, 10. Calculate the experimental percent water in the sample in this hydrate. 11,12.Calculate the theoretical percent of water for the compound FeSO, 7H20
Q: (d) H H (е) CH3 CN (f) H c=C H3C CH2CH2COH CH3CHCH2ČHCH3 HO2C" *CO2H
A: Select the longest chain of carbon containing maximum number of substitutent groups. Numbering as…
Q: Quèstion 20 6 points For the compund: Name the compound Identify each chiral center Are geometric…
A:
Q: Which of the following processes is endothermic? O CO2(1) → CO2(s) O CO2(g) → CO2(s) O CO2(g) →…
A: Exothermic means energy releases from the system to surrounding but Endothermic means energy…
Q: What is a buffer solution? How would an 0.5 M acetic acid/acetate buffer solution respond to the…
A: In this question we need to define what is buffer solution and we need to explain the working of…
Q: Critical point Melting. Liquid Freezing Vaporization Solid Condensation SublimationTriple point Gas…
A: A phase diagram represents the conditions such as temperature, pressure and volume at which…
Q: Which of the following is true for a nonspontaneous process? (d is for delta) 1.dH>TdS 2.dH<TdS…
A: Which of the following is true for a nonspontaneous process? (d is for delta) 1.dH>TdS…
Q: Data Sheet: Assuming that the following data were the result of the experiment, compute for the %…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Suppose a tank of oxygen-enriched air prepared for scuba diving has a volume of 18.72 L and a…
A:
Q: Which of the following is arranged in order of decreasing standard molar entropy at 25°C? O HCIO4(1)…
A: Entropy :- Entropy is a measure of randomness of particles in a system If particles move randomly…
Q: 1. S)A student prepares a solution of 23.25 g of acetic acid dissolved in enough water to make 2.00…
A: Given, CH3COOH (aq) + H2O (l) ⇌ H3O+ (aq) + CH3COO-(aq) mass of acetic acid = 23.25 g Volume of the…
Q: What is the voltage for the following reaction 25°C: AgIAg" (0.14M)IHg2"(0.06M)|Hg
A:
Q: Use the References to access important values if needed for this question. For the reaction 2…
A:
Q: What is a standard deviation in analytical chemistry?
A:
Q: Show o versus R overlap for 2p orbitals Show n overlap for 2d orbitals-can d orbitals orientate for…
A: overlapping of atomic orbitals
Q: Be sure to answer all parts. At 430°C, the equilibrium constant (Kp) for the reaction 2NO(g) +…
A:
Q: 4. Proposed the mechanism for the following reaction, Show the name of each step such as oxidative…
A: Solution In this reaction First step is oxidative addition and second is migratory insertion…
Q: A buffer solution is made that is 0.379 M in H2S and 0.379 M in NaHS. If Ka1 for H2S is 1.00 x 10-,…
A:
Q: 2.00 mol of perfect gas molecules are expanded isothermally from an initial volume of 4.00 m to a…
A: Entropy is a measure of the randomness of the system. The entropy change in a chemical reaction can…
Q: The vapor pressure of ethanol is 54.68 mm Hg at 25oC. How many grams of testosterone, C19H2802, a…
A: Given : Vapour pressure of ethanol P°= 54.68 mm Hg Vapour pressure of lowered P= 53.64…
Q: When 22.0 mL of a 8.93x10-4 M ammonium chloride solution is combined with 18.0 mL of a 1.20x10-4 M…
A: Since you have asked multiple question, we will solve the first question for you.If you want any…
Q: 4. In a prelminary gas chromatography experiment, a solution containing 0.0837 M of analyte X and…
A:
Q: 5. The general formula of alkene is C,H,» (a) The relative molecular mass of an alkene X is 70.0.…
A: Given: Relative molecular mass of alkene = 70.0
Q: Part A An analytical chemist is titrating 225.6 ml. of a 0.8000 M solution of acetic acid (HCH,CO,)…
A:
Q: Gravimetric analysis. Please show complete solution. Thank you Question: A 3.00- g sample of an…
A:
Q: 1) BH3, THE 2) H,O2, NaOH
A:
Q: How many moles of nitrogen are in a 6560 mL sample of the gas at 482. mm Hg and 67.3°C? Answer = ?…
A:
Q: For the following reaction at 25°C: N2H4 () + 302 (g) → 2NO2 (g) + 2 H20 () Calculate AHO Calculate…
A:
Q: Identify the combinations that could form buffer solutions. a) 5.0 mL of 0.10 M CH3COOH and 5.0 mL…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: 3© Doaw the 'M-NMR 7 ace dyl aete ne and emplaie the Keto- enel taute merisom Cal culote th kete-…
A: inorganic NMR
Q: Consider a reaction taking place at two different temperatures, T₁ = 50 K and T₂ = 150 K. What is…
A: This can be shown by the Arrhenius equation. THe higher the temperature, the faster will the…
Q: Which of the following alkynes is the starting material for the reaction below? nin H20 H2SO4, HgSO,
A: Given :
Q: In the labo E obtains tlhe following data for an aqueous solution of KCI (molar mass = 74.6 g/mol)…
A: Molality of a solution = moles of solute/mass of solvent in kg % w/v concentration = [mass of…
Q: 20 aspirin tablets labeled 80mg were dissolved in 100mL of 90% ethanol. A 10mL aliquot was taken and…
A: The acetylsalicylic acid, commonly known as aspirin, is one of the most important analgesic drugs…
Q: True or false. When a liquid is placed inside a capillary and the cohesive forces are atronger than…
A:
Q: Give some improvements in Dry Flue Gas Desulfurization System for removal of sulfur dioxides
A: Answer - Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO…
Q: A perfect gas expands isothermally at 300 K from 17.00 dm³ to 27.00 dm³. Calculate the work (w) done…
A:
Q: Argon gas will behave ideally at which conditions
A: Given , Multiple choice question.
Q: Reaction AH at 298 K 3 Y + 2 X2O → 2 X2Y + YO2 146.9 kJ Y + O2 → YO2 - 296.4 kJ O -149.5 kJ O 443.3…
A:
Q: Chemistry answer asap plsss The concentration of a glucose solution was determined via a DNS assay,…
A:
Q: Balance chemical equation X + A2Y --> X+ + AY- + A2
A: Balanced chemical equation :- A chemical equation is said to be balanced if number of atoms of…
Q: . A straight horizontal pipe with a diameter of 1.0 cm and a length of 50 m carries oil with a…
A: Given as Diameter of pipe=1.0cm length=50 m coefficient of viscosity=0.12 N.s/m2 Gauge pressure at…
Q: describe the process of hydrocarbon decay?
A:
Q: 10. The figure shows a water tank with a valve. If the valve is opened, what is the maximum height…
A: Given : Height = h = 10.0m Length = L = 2.00m Angle in degree = θ =…
Q: View Policies Current Attempt in Progress A bubble of air escaping from a diver's mask rises from a…
A: Given the depth of water from the surface, h = 197 ft x (30.48 cm / 1 ft) x (1 m / 100 cm) = 60.046…
Q: How many moles of aluminum nitrate are required to prepare 3.00 L of 0.0065 M solution?
A:
Q: Compare the charges of the molecules below. This time, I need you to identify the hybridization of…
A: Hybridisation means Molecular orbitals combine to form hybridised orbital,like in SP2,1-s ,2-p…
Q: A 26.0 ml sample of 0.317 M triethylamine, (C,H5);N, is titrated with 0.293 M hydrochloric acid. The…
A: Given: Concentration of weak base triethylamine (Assuming B) = 0.317 M
Q: D10) 1.Give an advantage and a disadvantage of the spectra obtained from an electron impact (EI)…
A: The mass spectrometer is an analytical technique which is used to quantify known materials, identify…
Q: Given you the following complexes to answer question 17-22: 1. Mn(acac)3 2. (Co(en);]Cl3 3.…
A:
Q: What is the predominant intermolecular force of attraction existing between the molecules shown…
A: The given molecules is carbonyl compound having polar carbonyl group and name of this compound is…
Step by step
Solved in 2 steps with 1 images
- 11. 50.0 g of silver nitrite is mixed with 50.0 g of hydrochloric acid in a water based solution. A white precipitate forms. The solution is filtered and the white precipitate collected and dried. The dried precipitate is measured to have a mass of 36.1 g. What is the percent yield?3.A core sample is saturated with an oil (po = 35°API), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (pw = 1 g/cm'), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm' water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.A sample may contain any combination of sodium hydroxide, sodium carbonate and sodium bicarbonate with inert matter. A 3.00g sample requires 57.57ml of 0.5N hydrochloric acid to reach phenolphthalein endpoint and a total of 105.4ml of acid was used until the methyl orange endpoint was reached. What is the percentage inerts in the mixture? What is the percentage sodium bicarbonate in the mixture? What is the percentage sodium hydroxide in the mixture? What is the percentage sodium carbonate in the mixture?
- A pheromone is a type of volatile compound produced by a variety of insect species for chemical communication. These molecules can be used to signal alarm, to attract a mate, or to indicate the presence of food. The presence of 1.00 x 10-8 g of a pheromone can be sensed by another insect within a radius of 0.500 miles. Calculate the density of this pheromone. (1609 m = 1 mile) %3D Calculate the density (g/L) of the pheromone in this cylindrical air space.(10) You have 4 powdered samples, A, B, C, & D. One sample contains fullerenes, C16 to C70. Another is nano diamond. Another one is a mixture of C60 and carbon nanotubes. The 4th is a mixture of graphite & graphene. Indicate the analytical methods you would use to identify and distinguish the samples from each other.A 25mL volumetric pipet is used to deliver a sample of the stock solution marked “0.6000M X2SO4” into a 100mL volumetric flask. Distilled water is added to the flask until it is about 3/4thfull, the solution is mixed well, then more water is added to fill it up to the calibration mark, then it is mixed again. Calculate the concentration of X+ion in the dilute solution made above.
- An experiment was performed to look at how density changes when t he ratio of water and ethanol was changed. The following data was obtained: % Mass Ethano1.00 2.50 3.50 4.00 6.00 7.50 9.50 Density, g/mL0.9963 0.9936 0.9918 0.9910 0.9878 0.9855 0.9826 Use Excel or a similar spreadsheet program to plot these six data points and answer the following questions . a.What is the independent variable? b.What is the dependent variable? c.What is the equation of the best-‐fit line? d.What is the value of the coefficient of determination? e. According to the best-‐fit line, what should the density of pure water be (i.e. what is the density when % mass ethanol = 0.00)?Weigh out accurately 9.99 g of copper(II) sulfate pentahydrate (CuSO4·5H2O) by taring using a clean and dry empty 250-ml beaker. 2. Add tap water to the beaker to reach the 50-mL mark on the side of the beaker. 3. Dissolve all the crystals of CuSO4·5H2O in the water using a clean glass rod for stirring. 4. Then using a glass funnel transfer all the blue solution to a 100-mL volumetric flask. Rinse the beaker with about 10 mL of water and transfer the solution to the volumetric flask. Repeat the rinsing of the beaker with another 10 mL of water and transfer the solution to the volumetric flask. This is called quantitative transfer of the solution. 5. Then add enough water to reach the calibration mark of the volumetric flask. (You will need to use a dropper to add the last few drops of water to ensure the meniscus is on the calibration mark). Close the volumetric flask with a stopper and mix the solution well (so that it is homogeneous). 6. You have now prepared a standard solution (or…a hydrated CuSO4 salt was heated and thus dehydrated. Determine the % H2O by weight in the hydrated CuSO4 salt. SHOW WORK TO RECEIVE FULL CREDIT mass of empty dish 43.571 gmass of dish + hydrated salt 44.326 gmass of dish + dehydrated salt 44.054 g 4. Using the data found in question number 3, determine the empirical formula for the hydrated CuSO4salt. What is the chemical name of this dehydrated salt? 5. Suppose that after your second heating, you were impatient and did not wait until your porcelain evaporating dish to cool. Instead, you weighed it while it was still hot. How would this specifically affect the calculated percentage of water in the compound?
- A core sample is saturated with an oil (?o = 35oAPI), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (?w = 1 g/cm3 ), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm3 water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.A chemist mixes 49. g of chloroform with 53. g of acetyl bromide and 29. g of acetone. Calculate the percent by mass of each component of this solution. Be sure each of your answer entries has the correct number of significant digits. component mass percent x10 chloroform |% ? acetyl bromide acetoneA homogeneous mixture consists of 5% methanol, 70% isopropanol, and 25% water. Label these components as solvents or solutes. methanol: [ Select ] isopropanol: [ Select ] water: [ Select ]