4.35 L He/1 x 1 mole He/22.4 L He. When we solve this problem we get 0.19419642. Apply the significant figure rules to the final answer. Then explain why the final answer makes sense using the example answer attached to help.
Q: A helium balloon takes up 4.35 liters of space. Your friend is showing off his new chemistry skills…
A: Dimensional analysis relates between physical quantities with the help of dimensions and units of…
Q: Predict the major product of the following reaction. HBr peroxides
A: Answer: According to Antimarkovnikov law, addition of HBr on alkene takes place in such a way that…
Q: Why do you assume X is small?
A: Answer: This question is based on the approximations used in performing chemical calculations.
Q: Consider the system of sulfur dioxide, sulfur trioxide, nitrogen dioxide and nitrogen monoxide.…
A: We will first construct ICE table and then we will use the expression for Kp to calculate the…
Q: TRANSMITTANCE 0.8 0.6 0.4 0.2 ylmethanol: C-H stretching OH strekning OH 3000 2000 Wavenumber (cm-1)…
A:
Q: Draw the starting molecule to produce this ester when treated with RCO3H. Drawing RCO3H
A: Cyclic ketone on reaction with peracid (RCO3H) forms lactone.
Q: Consider the following reaction at equilibrium: 2H₂S (g) 2H₂(g) + S₂ (g) What would the direction of…
A: For the first question, we have to find the direction of the reaction when the volume of the…
Q: Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure -] :H-…
A: We have to check if the given Lewis structures are reasonable
Q: For ethanol and dimethyl ether Which of the following accounts for the difference in phase observed…
A: The question is based on chemical bonding. we need to identify the correct reason for different…
Q: A. Number and/or color of unknown hydrated salt B. Mass of beaker and cover C. Mass of beaker, cover…
A:
Q: There are several classes of organic compounds commonly referred to as organic families, and…
A: Unsaturated hydrocarbons are those hydrocarbons that have at least one C-C double or triple bond in…
Q: What is the percent composition of silver nitrate, AgNO3?
A: % composition = n× atomic mass×100/molar mass n= number of atoms
Q: A 7.21-g sample of gas occupies 2.56 liters at standard conditions. What is the molecular weight of…
A: Consider the given information is as follows; Mass of sample = 7.21 g Volume = 2.56 L Pressure at…
Q: Name the major organic product formed by the reaction of p-ethylaniline + HBr.
A: P-ethylaniline reacts with hydrobromic acid (HBr) to form 4-ethyl benzene aminium bromide.
Q: How much of a 2.5M stock solution do you need to make 300mL of a 0.35M solution? How much water…
A:
Q: IR Spectrum 2984 (liquid film) 4000 100 43 80 60 I- M+= 88 40 20 40 80 لللللللل % of base peak 29…
A: Index of hydrogen deficiency(IHD)=2C+2+N-H-X2C = The number of carbonsN = The number of nitrogensH =…
Q: Name the following amine by the IUPAC system of nomenclature: NH ₂ CHCHỊCH CH(CH3)
A:
Q: If N,N-diethyl-1-pentanamine reacts with 3-Methylhexanoic acid, draw the resulting skeletal…
A:
Q: Select the reagents you would use to synthesize the compound below from benzene. Use the minimum…
A: H2/Pd is used to reduce aromatic ketone to alkane.
Q: For a quantum mechanical system, a wave function of the form was tried, resulting 1 JB+4 6² +4 in an…
A: This is a simple question of quantum mechanics more specifically variational principle to determine…
Q: What is the pH of the buffer 0.12 M Na₂HPO4/0.21 M KH₂PO4?
A:
Q: B) ) The partial pressure of O₂ in your lungs varies from 25 mmHg to 40 mmHg. What mass of O₂ can…
A:
Q: Write an acceptable IUPAC name for the compound below. (Only systematic names, not common names are…
A: IUPAC nomenclature: In IUPAC nomenclature a molecule's longest chain of carbons is taken as parent…
Q: Write the IUPAC name of each compound. (a) (b) (c) -Br
A: Given here the structure of the three compounds and we are asked to write the IUPAC name for each.
Q: 2) The IR spectrum below is of one of the compounds shown. Circle structure that corresponds to the…
A: Given IR spectrum of unknown molecule
Q: Predict the products. If there is more than one product, draw them both. If there is no reaction,…
A: Convert reactant into product by using suitable reagent
Q: 76)A mixture of hydrazine (N2H4) and hydrogen peroxide (H2O2) is used as a fuel for rocket engines.…
A:
Q: Provide the (i) IUPAC name, (ii) condensed formula and (ii) molecular formula for the following…
A: Since,Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more…
Q: Decide whether each pair of elements in the table below will form an lonic compound. If they will,…
A: The bond between two ions formed by the complete transfer of electrons is known as an ionic bond.…
Q: For each row in the table below, decide whether the pair of elements will form a molecular or ionic…
A: The table given is-
Q: Predict the reagents and/or conditions and draw the detailed mechanism for the following reaction.…
A:
Q: m) Which pyranose ring (A, B, C, or D) in the tetrasaccharide below is derived from D-altrose? The…
A: m. Given that, the structures of tetrasaccharides and four different aldohexose are shown below We…
Q: For the following molecules: 1. C₂H₂ a. Determine the hybridization of the atoms involved. What are…
A: This question belong to Chemical Bonding and molecular structure.
Q: In each of the molecules drawn below one chemical bond is colored red. Decide whether this bond is…
A: To solve this problem we have to identify the polar bond and more negative atom .
Q: Name the alcohol that is used to make the following hemiacetal/hemiketal or acetal/ketal:…
A: The question is based on organic synthesis. we need to identify the product and determine the…
Q: Draw the products and necessary reagents of the three step retrosynthetic reaction sequence shown…
A: In this question, we will draw structure of the missing products and reagents which are use for…
Q: 14.27 Label each of the following structures as a cyclic hemiacetal, hemiketal, acetal, ketal, or…
A: Hemiacetal is that structure in which one carbon is attached with two oxygen out of which one is in…
Q: Solve the problem about the helium balloon by setting up a dimensional analysis equation using the…
A:
Q: The reaction: A + 3B → D + F was studied carefully and the mechanism below was determined. What is…
A: In a multi-step reaction, the rate of the reaction is determined by the slowest step of that…
Q: term symbols 2P, 2D, 4S. Find the possible J values for each of these, and match the appropriate set…
A: We know that in 2s+1LJ , s is the total spin. So,in case of 2P, L = 1 2s+1 = 2 Or, s = 1/2 And…
Q: A helium balloon takes up 4.35 liters of space. How many moles are in the balloon?
A: Since, We know that, Standard volume at STP = 22.4 L then,
Q: data signals. A. C5H12O 0.91 δ (3H, triplet) 1.19 δ (6H, singlet) 1.50 δ (2H, quartet) 2.24 δ…
A: H NMR is the go-to technique to help identify or confirm the structure of organic compounds or those…
Q: Define strong acid and a strong base
A: Acid - Those substances which can donate a proton or accept a pair of electrons Base - Those…
Q: Draw the major products of this SN1 reaction. Ignore any inorganic byproducts. Use a dash or wedge…
A: An organic reaction in which the good leaving group is replaced by another functional group is known…
Q: Name (by the common system of nomenclature) the amine (or ammonia) that is formed by the basic…
A: The question is based on the concept of organic reactions. We have to identify the product formed…
Q: Use the phase diagram given here to answer the following questions: 1.0 Ded Pressure (atm) 0.5 0…
A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: The image below shows the free energy diagrams for four different reactions (A, B, C and D), each…
A: Reactions on the basis of free energy can be classified into two types- 1. Spontaneous reaction 2.…
Q: 애
A: Chiral carbon centers are carbon atoms that are attached to four different substituents,that are…
Q: Organic Chemistry Maxwell presented by Macmillan Learning Complete the electron-pushing mechanism…
A: The curves arrow mechanism are shown below.
Q: Determine the pKa of an acid; a 4e-3M solution of which has a pH of 2.4
A:
4.35 L He/1 x 1 mole He/22.4 L He.
When we solve this problem we get 0.19419642. Apply the significant figure rules to the final answer.
Then explain why the final answer makes sense using the example answer attached to help.
Step by step
Solved in 2 steps
- What is the boiling point of the unknown substance Xin K(Kelvin)? X(t) = X(g) AH-(kJ mol1) S°J mol1K1) X(g) -82.0 238 | X({) | -101 144 Express your answer in decimal notation rounded to three significant figures.Inbc X (531 X Con X I Bala X Ans X Inbc X CHE X 101 Che X С Ч-С х b My x Unk X Sea X E I ma X app.101edu.co/# Bryant's Gmail Cascadia Canvas Lo... T GSBA Scholarship L... HOMEGROWN TRA... Learn Touch Typing... C The Science of Well... Investor360° ® Login ClickUp Reading list >> Question 7 of 40 Submit Which of the following compounds can form intermolecular hydrogen bonds? A) CH4 B) H2Se C) NH3 D) H2 E) All of these compounds can form hydrogen bonds. 10:36 AM e Type here to search 64°F 小 8/26/2021 (8)a .ull Asiacel| 10 N 141 N O A box with a volume (V=0.05 m³) lies at the bottom of a lake whose water has a density of (1*10³ kg/m³). How much force is required to lift the box, .if the mass of the box is (1000 kg) 9319.5 N O 9313.9 N O 9391.5 N O 9315.9 N O A future rectangular ship filled with oil. If the dimensions of the ship are (250 m) long, (80 m) wide, and (80 m) high. Determine how far the bottom of the ship is below the sea level? (Consider the total mass of the ship with the oil is (10.2*108 kg), and the .sea density is (1024 kg/m³))
- nHMAC%3Def41415d9158412623399163083b2ede#10001 Spr. 2021 8 Gu HI, Leira v Sign Out Item 4 I Review | Constants | Periodic Table Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 2250 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein. Part A How many nutrition bars should Alexandra pack? Express the number of bars numerically. > View Available Hint(s) ν ΑΣφ bars Submit Previous Answers 0V 12:33Rank the follwing temperature from highest to lowest; (I) 0.00°F;(II) 0.00°C; (III) 77.00 K; (IV) 260.00 K; (V)-180.00°C. a. I, IV, II, V, III b. II, V, I, IV, III c. II, V, IV, I, III d. II, IV, I, V, IIIMg(OH)p(s) → MgO(s) + H;O(1) Express your answer in kilojoues to one decimal place. AZ Al kJ Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part C N;O4(g) +4H2(g)→N 2(g)+4H20(g)
- Calculate the electrostatic force of repulsion for two protons separated by 93.0 pm. The charge of a proton is q = 1.6 x 10-1⁹ C. Express your answer to two significant figures and include the appropriate units. Fel = μA 2.7.10 6 Submit N Previous Answers Request Answer ? X Incorrect; Try Again; 5 attempts remaining Use the equation Fel = K(Q₁ Q₂/d²) to find the electrostatic force between the two particles. Q₁ and Q2 are the charges on the particles (charge of a proton here), and d is the distance of separation. The constant is given in the introduction and has the units Nm²/C². This means that the distance must be converted from picometers to meters using the relation 1 pm = 1 × 10¯ m. -12Part D: Food Calories Naked Juice Serving size 240 mL D1. Name of food product D2. Mass of food nutrients in one serving Fat Carbohydrate 33 g, Protein g, D3. Calculations for Calories (Cal) or kilocalories (kcal) per serving kcal (Cal) Carbohydrate Protein kcal (Cal) Fat kcal (Cal) D4. Total Calories (Cal or kcal) per serving kcal (Cal) D5. Calories (for one serving) listed on the label cal (Cal) D6. Percentage of total Calories from carbohydrate % (show calculations) D7. Percentage of total Calories from protein (show calculations) % D8. Percentage of total Calories from fat (show calculations) % Q 4. How does your calculated number of Calories in one serving compare to the Calories listed on the food product nutrition label? Comment on it.Why does the x go from:-0.9968x = -0.0025To:x= 0.0025x/0.9968And not:x= 0.9968/0.0025Wouldn't the negatives simply be ignored and the x would remain with:0.9968x and then you divide then 0.0025 without the coefficient x to get the value of x by cancelling out the 0.9968?
- Hi. I am trying to calculate the percent of water in an uknown hydrate. The given data is: mass of empty crucible +lid = 27.19g mass of crucible + lid and hydrate = 28.58g mass of crucible + lid and sample after heating(anhydrous salt) = 27.68g % water in hydrate formula = mass of water/mass of hydrate * 10012. y= xVa²- x² + a²sin1÷, where a is a parameterosjQib5plVDqEPgxo?. O GASES Solving for a gaseous reactant Jacqueline v The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by doing a famous experiment in 1775. In this experiment Lavoisier found that mercury(II) oxide, when heated, decomposed into liquid mercury and an invisible and previously unknown substance: oxygen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid mercury(II) oxide (HgO) into liquid mercury and gaseous dioxygen. 2. Suppose 25.0 mL of dioxygen gas are produced by this reaction, at a temperature of 70.0 °C and pressure of exactly 1 atm. Calculate the mass of mercury(II) oxide that must have reacted. Round your answer to 3 significant digits. Explanation Check O 2021 McGraw-Hill Education All Rights Resenved Terms of Uss Privacy Accessibility MacBook Air III