75.0 g

Q: If the specific heat of iron is 0.460J/g°C, how much heat is needed to warm 50.0g of iron from 20.0°...

A: Mass of Iron, m = 50 g Specific heat of Iron, Cs = 0.460 J/g °C Initial Temperature, Ti = 20°C Final...

Q: Write names of any 4 elements for each type mentioned in the table 3 given below. Cu , Ru, F, Cl , B...

A: We know that  Metal :  elements that loose electrons during chemical reactions and form positive ion...

Q: Consider the reaction: 2H,O(1)2H,(g) + 0,(g) Using standard thermodynamic data at 298K, calculate th...

A: ∆S°= sum of entropy of products - sum of entropy of reactants  

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry problems...

A:

Q: QU/A/ eylinder vessel of carbon monaxide (3.0 kg ) at -30°C with length 1.5 m and inner diameter 0.3...

A:

Q: Given the following exothermic combustion reaction, calculate An and list two or more stresses that ...

A: Glucose reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical ...

Q: Select the list of elements that is properly ordered by increasing atomic radius. Cs, Ba, Sr, As, S ...

A:

Q: If you want to deposit 4 g of Cu(s) at the cathode?

A: Consider the given information is as follows; Mass of copper deposited = 4.00 g Current (I) = 2.25 A...

Q: Consider a 0.500 m acqueous solution of iron(iii)chloride at 1atm  (a) What does "m" stand for ? (b)...

A:

Q: Using the provided table and the equation below, determine the heat of formation (in kJ/mol) for PbS...

A: Given  Reaction  2Pb(s)  +  3 O2(g)   ------>  2 SO2(g)  + 2 PbO(s) Substance              Heat o...

Q: Which of the following statements about chemical reactions is accurate? A balanced chemical equation...

A: Chemical reaction is a process in which one or more substances are converted to one or more differen...

Q: QUESTION 4 If the activation energy for the reaction: A(ag) B(ag) + C(aq), is 165kJ/mol and the valu...

A: Solution: We have Ea = 165kJ/mol K1 =0.085 min-1 T1 = 120 oC = 393 K T2 = 200 oC = 473 K. K2 = ? So ...

Q: À student obtains 0.95 g of crude 9-fluorenone and performs a recrystallization in cyclohexane (13 m...

A: The mass of crude 9-fluorenone is = 0.95 g The mass of pure 9-fluorenone is = 0.57 g The percent rec...

Q: Trying to solve #1

A: Given,  Initial volume = V1 = 88.2 mL  Initial temperature = T1 = 273 + 35 = 308 K  Final volume = V...

Q: The isotope 32P emits radiation and has a half-life of 14.3 days. Calculate the decay constant in se...

A:

Q: In an coffee cup calorimeter experiment, sodium hydroxide (7.17 g) was dissolved in water (86.6 g). ...

A:      Enthalpy of solution :-           It is the amount of heat released or absorbed in the system w...

Q: II. Arange the following compounds in order of increasing: A. boiling point B. acidity C. solubility...

A: As per our guidelines we can only solve first question. Please post other questions as next question...

Q: Which is an empirical formula? O C2H6 O C6H6 O C3 Hg O C4 Hg

A: For the 1st question: Given formulas: C2H6, C6H6, C3H8, C4H8 We have to find out which one of them r...

Q: Chemistry Question

A: Octet Rule

Q: If the reaction P(g) Qia) + R9) is second order with respect to P and k = 20 L/mol.min; how much tim...

A: As per our guidelines we can only solve first question. Please resubmit other questions as next ques...

Q: How much heat energy, in kilojoules, is required to convert 66.0 g of ice at −18.0 ∘C to water at  2...

A: To solve this problem first we calculate the heat needed to increase the temperature of ice to 0°C  ...

Q: Complete the table

A: Applying formula of mole and no. Of molecules n= x/y  (X/y)6.022E23  

Q: QUESTION 1 The company gave Phereseadula, who is an analyst, 5.00 L of H3PO4 and he was required to ...

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Q: 6. Provide a total synthesis for the target molecule starting from benzene using any reagents necess...

A: (a) When acetone is treated with phenyl magnesium Bromide (Grignard reagent) then 2-phenyl -2- propa...

Q: Chemistry Question

A: All the details are explained in handwritten solution.

Q: identify each functional group in the molecules shown

A: The functional groups are the atoms or groups of atoms that have their own characteristic properties...

Q: When 25.0 mL of a 9.14x10^-4 M sodiim sulfide solution is combined with 15.0 mL of a 9.00x10^-4 M ca...

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Q: The following is a diagram of energy states and transitions in the hydrogen atom. R: nfinity E B A n...

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Q: Which of the following contains 3.01 X 1023 particles? 2.00 g helium, He 14.0 g of nitrogen, N2 22.0...

A: Note: As per our guidelines, we are supposed to answer only one question. Please repost the other qu...

Q: If you add 100 mL of water and 100 mL of vegetable oil, will its volume be greater than 200 mL? Why?...

A:

Q: Arrange the following compounds in order of increasing boiling point:   Group of answer choices d ...

A: The given choices contains alkanes and alcohols. While comparing boiling point in case of alkanes an...

Q: 1. Balance the following equation, which describes the decomposition reaction which happens when pot...

A: Balancing a chemical reaction -  A chemical reaction is necessary to balance because the law of cons...

Q: How many hydrogen atoms are required to complete the structure of the compound below?

A: Organic compounds are mainly made of hydrogen and  carbon elements some times nitrogen, oxygen and h...

Q: A  10.0L  tank at  8.26°C  is filled with  6.16g  of sulfur hexafluoride gas and  18.8g  of ...

A: To solve this problem first we will calculate the mole fraction using the number of moles of each ga...

Q: According to the following reaction, how many grams of hydrochloric acid will be formed upon the com...

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of...

Q: If the starting mixture has 3.6 mol A(g), 3.6 mol B(g) and 1.2 mol C(g) in a 2L container

A:

Q: Draw the reaction mechanism and predict the product (with stereochemistry) andbyproduct of the follo...

A: The reaction of alkene with MCPBA (meta-Chloroperoxybenzoic acid) gives the epoxide as the product w...

Q: Determine the oxidation number of Mn in KMnO4:

A: Oxidation number is the imaginary or fictitious charge developed on an atom if all shared electrons ...

Q: Consider the reaction below: [1] Draw the products of the Bronsted-Lowry acid/base reaction [2] Use ...

A: Concepts of Brønsted-Lowry acid-base reaction.

Q: Chemistry Question

A: Explanation to the correct answer is given below

Q: A 2.00 L gas sample at 25.0 oC and pressure of 700. torr is allowed to expand to 7.50 L at a new pre...

A: Ideal gas law, can be written as PV = nRT Where, P = pressure V = volume n = moles of gas R = Gas co...

Q: nestion 20 How many of the following elements can form compounds with an expanded octet? Br, N, CI, ...

A: We have to tell which option is correct from given choices of options. By telling which can firm com...

Q: Chemistry Question

A: Hydrogen cyanide is HCN in which central atom is Carbon. Carbon atom has four Valence shell Electron...

Q: When BF3 behaves as a Lewis acid, the stability of the adducts with (CH3)2O, (CH3)2S, and (CH3)2Se d...

A:

Q: gl ; P20 1) In isomorphous alloying systems; the two metallic elements are totally dissolved in each...

A: In an isomorphous alloying system; the two metallic elements are completely miscible in each other i...

Q: Question 5 A 100.0 ml sample of 0.100 M H2NNH2 is titrated with 0.200 M HCI What is the pH of the so...

A: Pkb=-log(3*10^-6)=5.52  Millimoles of salt formed =35*0.2=7 Millimoles of base remain=(0.1*100)-7=3

Q: Use the References to access important values if needed for this question. When 15.0 mL of a 6.30x10...

A:

Q: Which of the following two solutions contains more free-floating ions and WHY? H2C2O4(ag) or K2C2O42...

A: Acids can be strong or weak acids. The main difference between a strong acid and weak acid is that s...

Q: Describe how you would accurately prepare 100.0 mL of a buffer solution with pH 4.7 using 1.0 M acet...

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any c...

Q: The neutralization reaction between sodium hydroxide and hydrochloric acid forms water and sodium ch...

A: Answer:- this question is answered by using the simple concept of calculation of heat change using t...

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".