Q: Balanced nuclear equations for the following A.Holmium-172 undergoes alpha decay B.Mercury-202 under...
A:
Q: How many milligrams of a 40 mg sample of cesium-137 remain after 120 years? Express the mass to two...
A: The half life of Cs -137 is about 30.17 yrs. The radioactive decay follows first order kinetics
Q: I only need parts D & E, thank you.
A: Volume of acetic acid = 50 mL = 50 * 10-3 LMolarity of acetic acid = 0.150 MNo of moles of acetic ac...
Q: How much heat did a cold water sample absorb if 53.88ml of water initially at 22.2 celcius to 32.5 c...
A: Given data Volume of water = 53.88 mL Initial temperature : T1=22.2 °C Final temperature : T2=32.5 °...
Q: Given the Equation: 2C(g) + 2D(g) = 3E(g) + F(g) + heat ,Predict the direction of the shift in equil...
A: Le-chatelier’s principle: It states that if any change in the variables of the reaction then the equ...
Q: Locate the chirality center in each compound and draw both enantiomers.
A: A chiral centre is a C having 4 different substituents.
Q: Use the ldeal gas law to calculate an un Ih openy. A sample of CHA gas has a volume of 654 mL, has a...
A: Applying ideal gas equation PV= nRT
Q: If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will themolarity of the diluted so...
A: Molarity: It basically shows the concentration of solution and it is obtained by taking ratio of num...
Q: 5. Complete and balance the following combustion reactions. (You will need to determine the molecula...
A: COMBUSTION REACTION: A reaction in which a chemical compound is burnt in the presence of oxygen is ...
Q: Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C has decayed to 1/4...
A:
Q: State the temperature on the Celsius thermometerB to the correct number of significant figures:
A: Significant figures are the digits of number that are accurate and more reliable value of data. Rule...
Q: There are four different abbreviated ways to write out the electron configuration using the symbolic...
A:
Q: What is Henry’s law, and when is it most likely to be valid?
A: ANSWERE IS DISCUSSED BELOW :
Q: Ethanol is a possible fuel. Use average bond energies to calculate ΔHrxnΔHrxn for the combustion of ...
A: In this question, we want to determine Enthalpy of Combustion of ethanol by using average bond energ...
Q: If 100. mg of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still...
A: Half life of fluorine -18 = 109.7 minutes Initial amount (ao) = 100. gm Amount left after 220 minu...
Q: Write the equality and two conversion factors for each of the following pairs of units:a. centimeter...
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...
Q: 10 / 11 Waterman Header & Footer Edit T Add Text A Add Image P Link Crop Pages 2. In general, what i...
A: Since you have asked multiple questions, we are solving first question for you. For remaining questi...
Q: To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag...
A: Given data: The 100% mass of a fertilizer contains, Ammonium phosphate = 37% Urea = 40% Potassium ch...
Q: Is water available in ethanol?
A: To find: Is water available in ethanol
Q: Enter the balanced nuclear equation for the beta decay ( 0/-1e) of cesium-137 Express your answer a...
A: In case of β decay, the atomic no. of the element increases by 1 and the atomic mass remains constan...
Q: Balance the following reaction. Calculate the cell potential and Gibbs free energy of this reaction ...
A:
Q: Which pair of elements do you expect to be most similar? Why? a. N and Ni b. Mo and Sn c. Na and Mg ...
A: For the same group, all the elements in it show similarity in some extent because all the members of...
Q: In an ionic compound, how are the relative sizes of the cation and anion related to the coordination...
A: In ionic solids, the coordination number represents the number of close cation-anion interactions.
Q: Give an acceptable name for each compound depicted in the ball-and-stick models.
A: In the ball and stick model The grey sphere represents the hydrogen atom, blue represents nitrogen, ...
Q: Explain the difference between an ideal and a nonideal solution
A: Solution is composed of the combination of 2 components: solute and solvent. The solution composed ...
Q: Round off or add zeros to calculate answers to give a final answer with three significant figure ...
A: The rules for significant figures are: 1) Zeros between two non-zero digits ARE significant. 2) All...
Q: Please help with this my current answer is wrong
A:
Q: What products are formed when aldehydes are oxidized?
A: On oxidation, aldehyde gives carboxylic acid. When aldehydes react with alkaline KMnO4 carboxylic ac...
Q: Rank the intensities of the following absorption types from least to most intense. - Charge transfe...
A: The absorbance intensity depends upon the probability of the particular transition. Since the probab...
Q: 105. Ethylene glycol (antifreeze) has a density of 1.11 g/cm². (a) What is the mass in grams of 387 ...
A: Ethylene glycol is ethane-1,2-diol.It has the formula (CH2OH)2. The main use of ethlyene glycol is i...
Q: What is the heat of vaporization(kJ/mol) if it takes 3,452 J of heat to completely vaporize 2.68 mol...
A: 3452 J of heat to completely vaporize 2.68 moles of the liquid at it's boiling point. We have to fin...
Q: The following is a proposed reaction mechanism for the decomposition of BrO2: 1 BrO2 + CO -...
A: In this question, we want to determine the rate determine step, overall Reaction, intermidiate and ...
Q: Classify cach of the following as a component of a silicate ceramic, an oxide ceramic, or a nonoxide...
A: The ceramics are generally a crystalline structure. The silicate ceramic is majorly based on alumino...
Q: Draw the structure of the neutral amine of Benedryl®. Be sure to draw nonbonding electron pairs wher...
A: The common name of diphenhydramine is benedryl®. It is an antihistamine mainly used to treat allergi...
Q: Consider the equilibrium reaction: 4 NH3(g) + 5 O2(g) ⇋ 4 NO(g) + 6 H2O(g), ∆H = −904.4 kJ. How does...
A: Le Chatelier's principle states that if a dynamic equilibrium is disturbed by changing the condition...
Q: Suppose that a 18.96 g sample of some liquid at 74.72 degrees celsius was cooled by the removal of 8...
A: Given: Mass of liquid=18.96 g Let the final temperature be "T" Temperature change, ∆T=(T-74.72)°C He...
Q: Question: Is there a difference between the physical meaning (of amount of particle behavior) of t...
A: The question can be answered on the basis of our concepts o chemical equilibrium. We thus, proceed a...
Q: Supply the formula for the acids: (d) sulfuricacid.
A: The given acid is sulphuric acid. It is the king of all the chemicals.
Q: Dissolving a non-volatile solute in a solvent will do which of the following? Increase the freezi...
A:
Q: A work of 657 J is done on a system that releases 434 J of heat. What is the energy change in the sy...
A: According to first law of thermodynamics, internal energy of the system is equal to the sum of work ...
Q: Calculate the heat released when 25.0 g of steam becomes liquid water at 100.0°C. The molar heat of ...
A: Heat of vaporization: It is also known as enthalpy of vaporization, which is defined as heat require...
Q: Then, for testing the iodide test, the acidified solution of sodium iodide (NaI) reacts with Fe(NO3)...
A: Answer: Double displacement reaction: When two compounds react with eath other by an exchange of ion...
Q: I need solve D,E,F Please solve this....
A: D) The structure of α-L-Sorbofuranose is given below.
Q: What carboxylic acid and alcohol are needed to synthesize each ester by Fischer esterifi cation?
A: The treatment of carboxylic acid with alcohol leads to the formation of ester. This reaction is name...
Q: please provide a solution for question 3
A: 3. The structural formula of the product for 'a' of problem#2 is shown as follows:
Q: In which of the following pairs do both numbers contain the same number of significant figures?a. 0....
A: significant figures are calculated in following as a. 0.06890 m3 in this digit the significant figu...
Q: Write the complete name for each of the following units:a. dL b. Ts c. mcg ...
A: The complete name of the following units has to be given.
Q: What are each ligand: Cl- , CN- , and NCl3 classified as? a. pi donor b. pi acceptor c. sigma only
A:
Q: The half-life of Tl-201 is 3.0 days. How many days will it take until the activity of the Tl-201 in ...
A: The radioactive decay follows first-order kinetics. The half-life of a radioactive substance is give...
Q: Assuming an efficiency of 49.20%, calculate the actual yield of magnesium nitrate formed from 121.6g...
A:
Consider the ball-and-stick model of D, and label E and F
as either identical to D or an enantiomer of D
Step by step
Solved in 2 steps
- Dipping into health When blood pressure is measured over a 24-hour period, this is referred to as ambulatory blood pressure monitoring, three patterns arise. Here are samples of three different individual. Let's call them Dick (1), Tom (2) and Harry (3). 1 2 3 Patient's Paticnt's BP BP Palicet's Upper limit Upper limit 12 Upper lim 124 120 Lower limit Lower Lower limit Time (houn after wakening) Time (hours after awakening) Time (hours after awakenin SYSTOLIC BP (mm Hg)Draw the products of the two step reaction sequence shown below. Use dash and/or wedge bonds to indicate stereochemistry where appropriate. H 1. CH3CH2MgBr 2. H3O+ O Atoms, Bonds and Rings Draw or tap a new boCI Br CI CH3 agua 50°C ácido acético 25°C CH3 SNa DMSO
- a student ran a TLC plate with three different molecules that have the same carbon structure but each contain a different functional groups. Help the student match the compounds to the correct lane of the TLC plateb. Identify the following pairs of compoiunds as either enantiomers, diastercomers, of identical CN OH COOH CCH но CCH and NC соонH D CI -CEN