The radioisotope 14C (half life = 5730 years) is used for carbon dating. What is the first order rate constant for ¹4C?

Q: How many kilograms of sodium sulfate are necessary to weigh out of 9.50 moles?

A: Number of moles of sodium sulfate, Na2SO4 (n) = 9.50 moles

Q: Calculate the number of cations and anions in 7.18 g of KBr. cations anions x 10 x 10

A:

Q: a. Predict the formula of the compound formed from aluminum and fluorine. b. Calculate the…

A: a. To determine the formula of the compound formed from aluminum and fluorine, I used the concept of…

Q: Give typed explanation A 0.10 M solution of an acid, HA, has a pH of 3.0. What is the Kb of the…

A: We have given,  Concentration of acid ,HA= 0.10M  pH = 3.0  Kb of conjugate base=?

Q: Please help me solve this

A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: An analytical chemist is titrating 242.9 mL of a 0.7800M solution of cyanic acid (HCNO) with a…

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Q: A chemistry graduate student is given 100. mL of a 1.70M hydrocyanic acid (HCN) solution.…

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A: A net ionic equation shows only the chemical species that are involved in a reaction, while a…

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Q: Which alcohol reacts most rapidly with the Lucas reagent? A) benzyl alcohol B) methanol C)…

A: ♣ Lucas test is performed to distinguish primary, secondary and tertiary alcohols.Lucas reagent :…

Q: Under normal mild conditions, ketones are quite resistant to oxidation. But when treated with…

A: Under normal mild conditions, ketones are quite resistant to oxidation because ketones do not have…

Q: d. OH

A: Organic synthesis is a chemical synthesis of constructing organic molecules.

Q: 13. Choose the best reagent(s) for carrying out the following conversions from the list below. Place…

A: This question belongs to Organic reagents.

Q: If 8.60g of CuNO3 is dissolved in water to make a 0.660M solution, what is the volume of the…

A: Given that, Mass of CuNO3 = 8.60 g Molar mass of CuNO3=125.55 gmol Molarity of solution= 0.660 M…

Q: Geometric isomers occur in some alkenes. These isomers are called cis-trans isomers because of the…

A: The cis-tans isomerization is a type of stereoisomerism. The molecule which contains a double bond…

Q: A loss of 0.35 mg of Zn occurs in the course of analysis to determine the element. Calculate the…

A: The percent relative error is a measure of the uncertainty of a measurement and is defined as the…

Q: Balance each of the following chemical equations a. KO₂(s) + H₂O(1)→ KOH(aq) + O₂(g) + H₂O₂(aq) b.…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Draw the major product(s) of electrophilic chlorination of o-xylene. • You do not have to consider…

A: Electrophilic aromatic substitution reaction: Electrophilic aromatic substitution reactions are the…

Q: Can you explain why there are no crystals that have the shape of a regular pentagon?

A: Shape of crystals.

Q: 452 ggon 1 mole 39.948 argon -11.31 moles argon

A: Unit conversion can be done by doing mathematical calculations with the unit conversion factor.

Q: How many formula units make up 10.8 g of magnesium chloride (MgCl2)?

A: Number of formula units ; is the number of molecules present in a given amount .

Q: A 10.0 L tank at 17. °C is filled with 9.03 g of dinitrogen monoxide gas and 6.93 g of chlorine…

A: Given that -  Volume of the tank = 10.0 L  Temperature = 17.0°C = 273+17 = 290 K  Weight of…

Q: 11. Solutions in which the... a. [H3O+] is greater than 1 x 10-7 M are reacidic [Choose one: acidic,…

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Q: Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free…

A: Given : We have to calculate the Gibbs free energy for the given reaction. The relationship between…

Q: What is the pH of a cleaning solution with a [H3O+] 7.40 × 10-⁹ M H3O+? =

A: Given [H3O+] =7.40×10-9 M pH = ?  pH is defined as negative logarithm of hydrogen or hydronium ion…

Q: reaction KOH(aq) + HCIO (ag)KCIO, (aq) + H₂O (/) 8Ca(s) + S, (s) 8CaS (s) 4 HI(aq) + NaOH(aq) →…

A: Answer:- This question is answered by using the simple concept of types of chemical reactions using…

Q: 2.) In the following reaction: H2 + Br2 + O2 → 2HBr + 2O− determine the correct rate law…

A: Given reaction: H2 + Br2 + O2 →2HBr + 2O- To determine: Order with respect to each reactants (i.e…

Q: Both monomers needed for the synthesis of Nylon 6,6 can be prepared from 1,4- dichlorobutane. How…

A: Alkyl halide reacts with KCN to give alkyl nitrile.  Nitrile group can be reduced by Na-ethanol or…

Q: As you increase elevation the atmospheric pressure decreases, which means the boiling point of water…

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Q: 1. Use the ideal gas law to determine the number of moles of carbon dioxide gas in the flask. For…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Redraw the following compounds from most reduced to most oxidized. If compounds have identical…

A: To redraw the given compounds from most reduced to most oxidized, that means from lower to higher…

Q: The following compound is_ H H3C. H3C -I H OH Br O chiral O achiral but not meso O meso

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Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2103 (aq)…

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Q: propose a synthesis for the molecule starting with organic molecules containing no more than 8…

A: The question is based on the concept of organic reactions . we need to synthesize the given product…

Q: Click the "draw structure" button to launch the drawing utility. Draw the product of the following…

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Q: Orient the two molecules so that portions of the mo lecules that would normally form intermolecular

A: Hydrogen bonding is a type of intermolecular bonding that occurs when a hydrogen atom is bonded to a…

Q: The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side…

A: Given data is The radius of a tungsten atom is 137 pm. We have to calculate how many tungsten atoms…

Q: 6. Which pair of elements, a or b, has more similar properties? a) K and Ca 7. Give the chemical…

A: 6) which pair of elements a or b, has more similar properties, _____ a) K and Ca        _____ b) Li…

Q: 3. Calculate the molar solubility of Fe(OH)

A:

Q: Rank the following ionic compounds in order of lattice energy, from the least exothermic (least…

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Q: 7. Identify the acid and the base (for the forward direction) in each of the following reactions:…

A: Solving the first 3 subparts as per guidelines, for further assistance post the questions seperately…

Q: 8) Which of the following series of reactions is a viable route from the starting material to the…

A:

Q: A buffer solution is made that is 0.473 M in H₂CO, and 0.473 M in NaHCO. If Ka for H₂CO, is 4.20 x…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base .…

Q: How many water molecules are in a block of ice containing 2.50 mol of water (H2O)?

A:

Q: Consider the following equilibrium: O2(g) + 2F2(8) 20F2(g); Kp = 2.3 10-15 Which of the following…

A: Answer:- This question is answered by using the simple concept of dynamic equilibrium. So, If the…

Q: 2. If the reaction below is initially at equilibrium, and then each of the following changes are…

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Q: Complete and balance each of the following equations for gas-evolution reactions.…

A: HNO3 reacts with Na2SO3 to give NaNO3, SO2 and H2O.

Q: Aqueous sulfuric acid (H₂SO4) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: We have to calculate the percentage yield

Q: jugate acid conjugated base + H+ 9. What is the base form of: H JOH a. H₂0 OH- b. HF F PO C. HPO…

A: When an acid containing a hydrogen atom dissociates it gives a proton and an anionic part. Anionic…