To raise the temperature of aluminum which has a mass of 200 grams from 298 K to 348 K, 8400 joules of heat are required.  Determine the specific heat of aluminum.... J/kg K.

Q: D. Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas. ...

A: In balance reaction 2 mole of aluminium react 3 mole sulphuric acid and produced 3 mole H2

Q: s the reaction in picture 1 exothermic or endothermic?

A: Given : We have to tell whether the given reaction is exothermic or endothermic.

Q: Question 4 Find the pH of 1.0 x 10-3 M nitric acid. pH = 4.0 O pH = 2.0 pH = 3.0 O pH = 3.5

A: The answer is as follows:  

Q: Express the rate of the reaction in terms of the change in concentration of each of the reactants an...

A: Please find your solution below : The rate of reaction determines the speed at which a chemical reac...

Q: 3. Devise a separation scheme similar to the scheme in Figure 4.2. for the following four compounds....

A: The functional groups of a molecule are the key components and it is used to provide the notable che...

Q: What is the proper cell notation for the reaction: Cu + 2Fe^3+ = Cu^2+ + 2Fe^2+ * O Cu(s) | Cu*+2 (a...

A:

Q: 20) Which of the following statements is FALSE for the following equilibrium: 2CO(g) + 0:(g) = 2CO:(...

A: Which one of the following is FALSE...

Q: Which of the below do you think would have the highest boiling point? Why? a. butane b. butanal C. 2...

A: There are various type of intermolecular forces of attraction between molecules such as vander waal ...

Q: For each of the following acids or bases below a) Label the following acids and bases as strong acid...

A:

Q: Identify each molecule below as polar or non-polar (Hint: You may need to review your functional gro...

A: Polar molecule is molecule which have charge separation due to differences in electronegativity betw...

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). ...

A:

Q: type of reaction

A:

Q: Is p-methylphenol more acidic than phenol? Why or why not?

A: The acidic strength of organic compounds can be compared by determining the relative stabilities of ...

Q: A toy top has a mass of 32.0 g Cu. How many atoms Cu are in this spinning top, given that the averag...

A: We know , in 1 mole of any atoms , there is avogadro number of atoms i.e. 6.022×1023 number of atoms...

Q: Convert your answer to scientific notation (i.e. ## x 10x mg) = Convert a 3.5% NaCl solution to µg/...

A: Given: Concentration of NaCl in %(m/v) = 3.5 %.  

Q: 241 a. 05Am + He → 23n + b. 226RA 88Ra → He + c. - + dn Ba + 564 36 Kr + 3n 235x 129p 94

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per...

Q: Molecule ЕPG Hyb (circle if 2D Lewis Structure 3D Lewis Structure MG polar) ВА CIF3 XeC- NO,

A:

Q: Suppose you forget which layer is which, and evaporate both the aqueous layer and the DCM layer. Bot...

A: 7. a) The aqueous layer component that formerly contained NaCl can be recognised by flame test if ev...

Q: A 50.5 g sample of glass is put into a calorimeter (see sketch at right) that contains 150.0 g of wa...

A: Answer: This question is based on the conservation of heat. When two objects are brought in contact ...

Q: What is the percent by volume concentration of 11.6 mL of a hydrogen peroxide in 352 mL of a hydroge...

A: Given, Volume of the hydrogen peroxide = 11.6 mL Volume of the the hydrogen peroxide-water solution ...

Q: Which of the following is NOT manipulated or measured by a potentiostat during an experiment? O char...

A: A potentiostat is an electronic device which is used in electrochemical experiments. It measures cur...

Q: 9. Distance of atoms from each other (only an example): MgO= 2 nm and the bond length/distance are 1...

A:

Q: Question 7 From a stock solution of 0.300 M NaOAc and 0.300 M HOAC with a given Ka value of 1.8x10-5...

A:

Q: Check my work 10 attempts left Be sure to answer all parts. Santalbic acid, a fatty acid isolated fr...

A: Sigma bonds are formed by head on overlap of two orbitals . With development of ionic character in c...

Q: At what potential should the cyclical sweep begin? O open circuit potential O anodic peak potential ...

A: In cyclic voltammetry voltage used to change between two values i.e. cathodic peak potential and ano...

Q: Professor Modyn owns another piston-cylinder device, which initially (State 1) contains 0.236 m³ of ...

A:  

Q: A chemist adds 0.45 L of a 2.9 × 10 M copper(II) fluoride (CuF,) solution to a reaction flask. Calcu...

A:

Q: HHH А. H С. В. H H H H H. H2 HO-C-OH Н EC-OH H нн нн B.

A:

Q: G and h

A: Given:

Q: OH HỌ HO- OH Но но OH OH OH OH

A: sugars that do not give positive tests with tollens reagent are called nonreducing sugar. Acetals or...

Q: Find the molar mass of a protein from a measured = 3.52 torr for a 22.8 mg sample in 1.5 mL water...

A: One atm is equal to 760 torr

Q: 70. This process is called , O sublimation process recrystallization process O decolorization proces...

A: Since cooling takes place ans crystallization occurs.  Hence  the process is recrystallizatiion  So ...

Q: Calculate the activation energy of the alternate pathway, assuming the reaction rate increases bay a...

A: logkcku=EU-EC2.303×R×Tthe activation energy for  uncatalyzed reaction =EUthe activation energy for  ...

Q: Subject: Environmental Science Diagram an atom of nitrogen (which consists of 7 protons, 7 neutrons...

A: Atomic number of an element is the number of proton present in nucleus and mass number of an element...

Q: density

A:

Q: A student needs to prepare a buffer solution with a pH of 4.18. Assuming a pKa of 4.69, how many mL ...

A:

Q: 3. How Se-reagents (selen) and oxidation(s) can be used to make the following transformation. Give r...

A: This transformation can be done by first converting epoxide to alkene and then oxidizing it's allyli...

Q: Periodic table trends multiple choice (NO explanantions required):

A: 2. Electron affinity increase in periodic table from left to right and down to up.   3. Isoelectroni...

Q: Which of the following models illustrates Acids produce H30* ions in aqueous solutions and Bases pro...

A:   • According to Lewis model of acids and bases, acids are those substance which can accept a pair o...

Q: Why is it that the heat of condensation isn't negative along with the amount of heat released in the...

A: Given,  The mass of steam = 155 grams. Steam condensed at 100.0 °C and the liquid cools to 10.0 °C  ...

Q: Question 5 Buffer solutions. O tend to maintain a relatively constant pH. will always have a pH of 7...

A: pH of a solution  can help us in determing acidity of that solution. If pH of a solution is less tha...

Q: ow many milliliters of a stock solution of 10.0 M HNO3 would you have to mL you dilute 21.0 mL of th...

A: Part A: Given data set: M1= 10.0 M M2= 0.200 M V1=? V2= 0.500 L Using dilution formula: M1*V1= M2*V2...

Q: Starting with the rate constant from your graphs and the NaOH concentrations, show haw you determine...

A: For a zeroth-order reaction, a plot of the concentration of any reactant versus time is a straight l...

Q: E2E.5(a) Calculate the final pressure of a sample of carbon dioxide that expands reversibly and adia...

A:

Q: It takes 572  kJ  of energy to decompose 2.00  mol  of liquid water. How much energy does it take to...

A:

Q: An emulsifier: A . to control insects and vermin b. produces and stimulates the production of CO2 c....

A:

Q: Which electron configuration is correct for the selenide ion, Se² ? P[Ne] 3s? 3p? D 1s2 2s? 2p6 3s2 ...

A:

Q: How can you determine the volume of a gas from the number of moles of a gas (at STP)? Use the patter...

A: Volume of helium gas = 89.6 L Molar mass of helium gas  = 4.0 g/mol  

Q: 0.8 0.6 0.4 0.2 450 500 550 600 650 700 Wavelength (nm) a. What region of the spectrum is represente...

A: Given graph show  UV-visible spectra of  a particular compund , these spectra are used to show diffe...

Q: na cV experiment, what happens after linearly ramping to the 'switching" potential? O The potential ...

A: A Cyclic Voltammetry (CV) experiment involves the scan of a range of potential voltages while measur...