Determine the mass of CaSO4 in the sample based on the following data to two decimal places mass of beaker and cover 50.08 mass of beaker, cover, and sample before heating 51.06 mass of beaker, cover, and sample after heating 50.84

Q: 7. Draw the resonance structure and use the curved arrow notation to show how they can be…

A: The molecule contains one negative charge and conjugated carbonyl groups,  hence several resonating…

Q: f the experimental molar mass for Benzoic acid was found to be 130 What is the % error. (See handout…

A: Given that, the experimental molar mass of benzoic acid is 130 g/mol. We have to calculate the % of…

Q: spr 25 : 2Px 2Py (k) Sp2 hybrid orbital contains (2px + 2s, 2px + 2pz + 2s, 2px + 2s, 2px + 2py +…

A: Hybridisation: It is a phenomenon of combining two or more atomic orbitals to give a new degenerate…

Q: Ruler Trial 1 Trial 2 Trial 3 Water Displacement Trial 1 Object 1 10.119 g/mL 10.119 g/mL 10.119…

A: Density is the ratio of mass of an object to its volume.

Q: Check the box under each structure in the table that is an enantiomer of the molecule shown below.…

A: Enantiomers: Chiral molecules that are mirror images of one another are referred to as enantiomers.…

Q: Draw the Lewis structure created by the curved arrow. Write in formal charges wherever they are not…

A: We know nitrogen is more electronegative than carbon .

Q: b) i) The Parkinson's disease drug Levodopa is shown. Which one-letter stereodescriptor (S or R)…

A: According to Cahn-Ingold-Prelog rule-   1) More atomic number having more priority. 2) If first atom…

Q: Could you please elaborate on why the correct number of sig figs would be three in total or two…

A: Performing the calculation gives: (249.362 + 41) / 63.498 = 4.57277 To report the answer with the…

Q: 12. Does the solubility of a solid usually increase or decrease as the temperature is increased?…

A: Solubility is the ability of substance (solute) to dissolve in another substance/liquid (solvent)…

Q: 10) The mass of a certain volume of an unknown liquid at 25°C is 234 mg. The mass of an equal volume…

A:

Q: 5. A solution is prepared by mixing 50.0 mL of 0.10 M Pb(NO3)2 with 50.0 mL of 1.0 M KCI (Ksp…

A:

Q: 2A1+ 3H₂SO4 → A/₂ (504)3 + 3H₂ How many grams of aluminum sulfitr would be formed if 250gm H₂2₂ 504…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: Determine the number of molecules in a drop of water that has a mass of 0.050

A: The question asks us to determine the number of molecules in a drop of water with a given mass. To…

Q: 6. What are the products of the below diels-alder reactions? Include stereochemistry! a) b) Br Br

A:

Q: Gaseous ammonia chemically reacts with oxygen gas to produce nitrogen monoxide gas and water vapor.…

A: Balanced chemical equation is    4 NH3 (g)        +      5 O2 (g)   →       4 NO(g)             +…

Q: Predict the major products for the following reactions. O H-C-H La MgBr 1) 2) H₂O* ㅅ MgBr NaOH MgBr…

A: Given reactions are reactions of Grignard reagent.  Grignard reagent is organometallic reagent.…

Q: Draw the complete: IUPAC Name bulane 2-methylhexane 3-ethyl-2-methylnonane propene…

A: Since you have posted multiple questions, we will provide the solutiononly to the first five…

Q: Select the resistivity of the following materials at 20degC. Match each item to a choice: Choices:…

A:

Q: 6. Reaction 2 is a first order reaction with a half-life (t 1/2) of 25.0 s. What is the value of the…

A:

Q: A 250.0 mL sample of water contains 35.0 ppb of lead.  Calculate the mass in micrograms of lead in…

A: Given,Volume of water sample = 250.0 mLConcentration of lead = 35.0 ppbRequired,…

Q: Convert to dash-wedge

A: Since, In the figure of the question, it is Newmann form. When change to wedge-dash keep in mind…

Q: Ranking the stability of carbocation intermed Rank the carbocations in the table below in order of…

A: Carbon adjacent to the carbon with positive charge is called alpha-carbon. And the hydrogen attached…

Q: One sugar cube is about 2.3 g, a package of sugar contains 2.8 g, and a a teaspoon of sugar is about…

A: In this question, we are asked to find the average mass of one molecule of table sugar (C12H22O11)…

Q: The reaction A + B 2 C has the rate law rate = K[A] [B]³. By what factor does the rate of reaction…

A: This is a simple question about the rate of reaction when the concentration of the reactants changes…

Q: Will a precipitate form if a 190.0 mL of 0.082 M solution of strontium nitrate (Sr(NO3)2) is added…

A: We can predict whether precipitate will form or not by comparing Ksp value with reaction quotient Q.…

Q: General Chemistry 4th Edition McQuarrie Rock Gallogly Balance the equation by inserting coefficients…

A: We have been asked to write the balanced chemical equation by inserting the coefficients. Reactants…

Q: How many grams of copper(II) oxide can be reduced to copper metal with 1.75 moles of H2?

A:

Q: Hybridation Write the hybridation of each carbon in the molecule.

A: Since, Hybridization can be defined as the mixing of two atomic orbital to form new hybridized…

Q: The gas phase decomposition of hydrogen iodide at 700 K HI(g) → H₂(g) + ½/1₂ (9) is second order in…

A: We have been given initial concentration, concentration at time (t) and rate constant. We have been…

Q: 3. Determine the Ksp of Pb3(PO4)2 if its solubility is 6.2 x 10-12 mol/L at 23°C.

A:

Q: QUESTION 4 Which of the compounds C4H10, CaCl2, Cu(NO3)2, PC13 are expected to exist as molecules? O…

A: Solution - Molecule consist of covalent bond . C4H10 is butane which consist of covalent bond . 13…

Q: Can you show me the calculations please ? I'm not following how you got to this number ?

A: 0.36 mol C reacts with excess CuOWe have to find out the number of  Cu atoms .

Q: If you have 5.3x10^23 molecules of copper(II) oxide that reacts with excess carbon, how many grams…

A:

Q: According to the Debye Theory of solids, the molar heat capacity at low temperature is given by Cp =…

A: The randomness of particle in system is known as entropy of the system.

Q: Identify which changes in the list below will cause the system at equilibrium to shift towards…

A: Le Chatelier's principle: This principle is used to predict the effect of a change in conditions on…

Q: please someone provide the cnmr chemical shifts for each respective carbon in this molecule N=N -N

A: The organic compound given is 1-benzyl-4-(p-tolyl)-1H-1,2,3-triazole.

Q: Order the following electronic orbitals from lowest (1) to highest (5) energy level. Pi anti-bonding…

A:

Q: Based on hard-soft acid-base theory should the following reaction be favorable in the forward or the…

A: Hard acid binds with hard base while soft acid binds or react with soft base. This is hard soft acid…

Q: A new element Z has been discovered.  There are 2 isotopes of this element: Z-121 which has an…

A:

Q: In a fluorescence experiment, the measured emission intensity will increase with higher power of…

A: The process of fluorescence arises from the excitation of molecule from ground state to the singlet…

Q: A certain solid has a structure in which W atoms are located at the cube corners, Satoms at each…

A: Based on the given information, we can determine the chemical formula of the metal as follows:…

Q: 1. Draw and name, using R, S system of nomenclature, the Fischer projections of the isomers of…

A: all the isomers are drawn and nomenclated R S

Q: Q: Saponification is irreversible. Can you guess what the  mechanism is?

A: We have find out the saponification reaction mechanism.

Q: 6.63 From the following heats of combustion, CH₂OH() + O₂(g) → CO₂(g) + 2H₂O(l) AH-726.4 kJ/mol…

A: Given, a) CH3OH(l) + 3/2O2(g) ----> CO2(g) + 2H2O(l) ∆H°rxn = -726.4 kJ/mol b) C(graphite) +…

Q: based on the answer to the previous question, calculate the Ksp value for lithium sulfate at 25…

A: Given,The molarity of a saturated at equilibrium lithium sulfate solution at 25 °C = 1.98…

Q: H12 С(1 си 42 N=N •N₂ HH но CH НӘ

A:

Q: The following data are for the decomposition of dinitrogen pentoxide in carbon tetrachloride…

A: According to the question, The decomposition of the dinitrogen pentaoxide is as follows, N2O5 → 2NO2…

Q: Molecules that have the same molecular formula, but different atomic connections are called…

A: Constitutional isomers are also terms as structural isomers as the whole structure of the compound…

Q: 6. Cleaning a paint brush using turpentine or paint thinner is an example of what separation method?…

A: We have to find out the separation method of cleaning a paint brush using turpentine or paint…

Q: To measure the velocity of a dilute base (whose properties are similar to water) at a point in a…

A: The velocity of the water can be calculated using the Bernoulli's equation, which relates the…