A 3.89 kg sample contains has 0.90 mg of a heavy metal, express the concentration of heavy metal in the sample in ppm

Q: Chemistry Please help [V(CO)6] and [V(CO)6]- are both octahedral complexes. Which has the shorter…

A: The given complexes are [V(CO)6] and [V(CO)6]- .

Q: 1. Plot time, t (y-axis), against the temperature, C (x-axis). Is the curve linear? 2. Plot 1/t…

A: Here given that, Test tube Temperature (degree Celsius ) t (s) 1/t (s-1) 1 54 79.12 0.0126 2…

Q: Assuming equal concentrations, arrange these solutions by pH. Highest pH HCIO (aq) HBrO(aq) NH,(aq)…

A: Solutions              Given that Assuming equal contrations arrange these solutions by PH

Q: The specific heat of silver 0.24 J/g°C. How many joules of energy are needed to warm 4.37g of silver…

A:

Q: DA. A B. B C. C D. D What is the relation between the two molecules shown below? N Darvon, a…

A: In this question, we will see the relationship between these two given compounds.  You can see the…

Q: 4. Plot 1/ (y-axis) against M (x-axis). Is the curve reasonably straight? Note: You did not start…

A: The molarities of Na2S2O3 and 1/time for each well are provided as below: Well  Molarity of…

Q: A piece of parchment believed to be the original Magna Carta (signed at Runnymede in 1215 A.D.) is…

A: Here we have to determine the activity in dpm of a dead piece of parchment which is live 80 years…

Q: The presence of [ Select] on the central atom is an indicator that the molecule is polar, if there…

A: We have to fill the blanks in the given question

Q: Which of the following is NOT a correct IUPAC name? Pick all that apply.

A: Among the given options, options B and D are not correct IUPAC names. In the case of option B, the…

Q: Which one has the largest ionic radius? O 0²- OMg2+ Nat OF

A:

Q: Given the following electron configurations: 1) 1s²2s²2p63s²3p6 II) 1s22s²2p 3s² III) 1s22s22p63s¹…

A: Half-filled or fully filled electronic configurations are more stable than the other configurations.

Q: A 15.0 gram sample of a compound is found to contain 8.83 grams of sodium and 6.17 grams of sulfur.…

A:

Q: 2 CO₂ (g) 2 CO (g) + O₂(g) 1. Write the K, expression for this balanced equation. 2. If, at…

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: Consider the reaction 3X + 2Y → 5C + 4D With excess Y, how many moles of X are needed to produce…

A: Given, 3X + 2Y ➝ 5C + 4D Y - excess reactant moles of D produced = 24.00 moles moles of X are needed…

Q: 1. Name the following aldehydes and ketones: (a) O (b) CH2CH2CHO CH3CH₂CCHCH3 T CH3 "o" (d) CH3 H…

A: Hello dear rules for iupac name and detailed names are attached in pictures in both the steps...…

Q: Using the electronegativity values given in the references section, show for the indicated bonds…

A: If the electronegativity difference is between 0.1-2, the bond is known as polar covalent bond. If…

Q: A chemistry graduate student is studying the rate of this reaction: 2N₂O5 (g) → 2N₂O4 (g) + O₂(g)…

A:

Q: Consider the reaction: A -----------> 2C The concentration of reactant A and product B were…

A: In this question, we will determined the value of X  You can see the details solution below in the…

Q: The molar solubility of nickel(II) sulfide in a water solution is M.

A: Known: Solubility product constant of nickel(II) sulfide = 3.0×10-19

Q: A 12.2 M solution has a volume of 4.0 L. The volume is doubled by adding water. What is the final…

A:

Q: The Robinson annulation reaction yields a six membered ring resulting from a Michael reaction with…

A:

Q: On some occasions, the selected molecule moved in and out until a photon of light was emitted. This…

A: Bohr model of hydrogen is based on some assumptions. Electron travels specific shells, orbits,around…

Q: How long will it take to deposit 75 g of Fe(s) by electrolysis of molten iron (III) chloride using…

A: Here we have to determine the time required to deposit 75 g of iron in the elctrosysis of FeCl3 by…

Q: Predict the product of the following reaction. aa N₂ D) J) There is no reaction K) None of the above…

A: In this question, we will determine the major product for this given reaction.  You can see the…

Q: (Q100) The diameter of a titanium-46 nuclide is 7.214 fm (1 fm = 10-15). Given that the mass of…

A: We know that  Density = mass ÷ volume  and volume = 4/3 πr3

Q: Radiation with a wavelength of 180 nm causes electrons to be emitted from the surface of an unknown…

A:

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A:

Q: Describe structural isomerism and the different types that exist. With the aid of diagrams use the…

A: To describe the structural isomersim. To explain the structural isomerism of C5H12 and C5H10.

Q: (SHOW CALCULATIONS) How many milliliters of 12.1 M HCI solution are needed to make 1.0 L of 0.5 M…

A:

Q: 2. What are the starti НС Н СІН С | | | | | | -С-С-С-С-С-С | | | | | | нананс P а

A:

Q: An engineer turns the temperature of a gas down, holding the volume constant at 1,250 L. Initially,…

A:

Q: 32p has a half-life of 14.3 days. The original sample of 32P has a mass of 1.88 g. Approximately…

A: Given, Half life of 32P = 1.88 g mass of original sample of 32P = 1.88 g mass of 32P remain after 6…

Q: Each value represents a different aqueous solution at 25 °C. Classify each solution as acidic,…

A: When the pH is less than 7 then one can identify the solution is acidic. pH =3.64   pOH = 12.12 pH =…

Q: Which three of the following molecules have do not have a lone pair on the central atom? HCN CH₂F2 O…

A:

Q: What materials were used to construct these objects?

A:

Q: The equilibrium constant, K, for the following reaction is 1.80×102 at 698 K. 2HI(g) H₂(g) + 1₂(9)…

A:

Q: MaVa-MbVb can be used for simple strong acid- strong base titration calculations. Suppose 125 mL of…

A:

Q: A CH3 HB Ha Ill UI H3C CH3 H H3C B HO Cholestanol differs from cholesterol only in the absence of a…

A: first of all before solving this question please look at equatorial and axial positions in…

Q: II. Provide the chemical formula for each of the following compounds. 6. copper (II) sulfite 7.…

A:

Q: I. Complete the table of neutral ionic compounds with the formulas and names for each cation-anion…

A: While naming the ionic compound first we will give the name for cation and after anion . From the…

Q: Hydrogen peroxide was catalytically decomposed, and 75.3 mL of oxygen gas was collected overwater at…

A: Solutions                         Given that   A) Hydrogen peroxide was catalytically decomposed,…

Q: What is the formal charge of the central atom of chlorite ion? 0-2 O-1 O +2 O +1

A:

Q: Catalytic converters are used in automobiles to convert harmful gaseous substances in the exhaust to…

A:

Q: C: Determination of Ka of a Weak Acid: 25 mL of 0.01 M acetic acid solution is mixed with 25 mL of…

A: We would use Henderson Hasselbalch equation to calculate pKa and using pKa we can calculate Ka.

Q: 5.5kg of gas A has the temperature of 0 celcius and the volume of 5L. The gas molecular weight is…

A:

Q: Does the concentration of a component in a mixture depend on the amount of the mix- ture

A: Concentration is the no. Of moles per litre of solution.

Q: Ratio and proportions - show your work A) If you have 50 mg of adrenaline in 25 mL of volume, how…

A:

Q: With the aid of diagrams describe the similarities and differences between the structures of alkanes…

A: Difference between alkane and alkyne.

Q: The equilibrium constant, K, for the following reaction is 1.29x10-2 at 600. K. COCI₂(g) →CO(g) +…

A:

Q: How many grams of NaOH are there in 125 mL of a 0.221 M NaOH solution?

A: NaOH molarity = 0.221 M  Volume given = 125 ml no. of moles(n) = molarity ×Vml1000  Substitute the…