A beaker contains water up to the 130 mL mark. We introduce an object 38 g of dough and we observe that the water level rises to 152 ml. Determine the density of this object.

Q: 20. In mathematical operations involving antilogarithm (In your calculator, press shift log), the ru...

A:

Q: C. NBS DMSO, H20 d. H20 H2SO4

A: In c part , alkene first react with NBS forms cyclobrominium cation then H2O will attack from opposi...

Q: Sam is having a great deal of difficulty with thermodynamics, particularly when systems are not idea...

A: When system is ideal and when cooked pizza is delivered to sam, it is not going to cool by external ...

Q: 3. When volume of a gas decreases under isothermic conditions, pressure will [ Select ] This is a(n)...

A:

Q: Based on the structure listed below, indicate the set of stretching frequencies (cm") that would be ...

A:

Q: Using the reaction below and your knowledge of limiting reactants, find what mass of iron(IIl) chlor...

A:

Q: a) Write down the anodic and cathodic electrochemical reactions occurring in a Zink (Zn) - Copper (C...

A:

Q: The breaking buffer that we use this week contains 10mM Tris, pH 8.0, 150mM NaCl. The elution buffer...

A:

Q: 2) If an unknown Cu*2 solution has an absorbance of .62, a) Find its molarity graphically: A M b) Us...

A:

Q: involving logarithm, the rule is to retain as many decimal places in the result as there are signifi...

A:

Q: How many grams are in 12.0 L of ammonia (NH,)? A V- M. G a. 0.536 grams b. 911 grams С. 3.54 grams d...

A:

Q: (c) Predict the chemical tests you would use to distinguish between the isomers in (a). (d). When th...

A: Isomers Exhibited by The Co(en)3  is  optical Isomers and there exist two form dextro and laevo .

Q: products

A:

Q: The solubility product constant, Ksp, values for some fluoride compounds are given below. Use these ...

A: Given, The least soluble compound in water at 25 °C from the list is:

Q: time (s) [Ser] at T=335 0.150 0.143 20 0.120 40 0.090 90 0.015 75 0.038 What is the time necessary f...

A: It is a zero order reaction. Due to change in concentration is directly proportional to time.

Q: Choose the mechanism that forms the main product of the following reaction. Er ONa CH3CHOH calor

A:

Q: "aromatic", "antiaromatic", or "nonaromatic". Ho

A:

Q: In the manufacture of an important organic solvent, toluene (C,H3), from methyl cyclohexane (C,H14),...

A: The answer are as follows:  

Q: 1. Calculate the grams of K2SO4 required to make 350.0 mL of a 0.57 M K2SO4 solution. 2. How many L ...

A: Note: As per our company guideline we can answer only three subparts. Kindly repost the question men...

Q: Can you make a suggestion for a research topic about disaster risk? or any topic that can be modifie...

A: Sure.

Q: How many carbon–carbon double bonds, linked together, are needed to make a carbon chain that is 1.00...

A: Average carbon–carbon double bonds distance is = 1.34 A°  C=C long chain will be  C=C =C = C = C =••...

Q: nite the eacion for the acidic and busic Salts mchen It is dissolived M waier. Be sure 1o write The ...

A: These reactions are the salt of Hydrolysis.  

Q: 2. Predict the bond angle, electron geometry, and molecular geometry for a water molecule. Type your...

A:

Q: Identify the chiral centers

A: Chiral carbon: The sp3 hybridized carbon atom that is attached to the four different types of atoms ...

Q: 1. What is the volume occupied by an aluminum sheet with a mass of 5.28 g? Density of Al = 2.7 g/cm³...

A: Note - Since you have asked multiple question, we will solve the first question for you. If you wan...

Q: Give IUPAC names for the following alkanes, and convert each drawing into a skeletal structure. 3-20...

A:

Q: °C and The melting point of a solid is 39.0 °F. Convert it to

A:

Q: Which of the following pairs of aqueous solutions, when mixed, would result in the formation of a pr...

A: Given that, pairs of aqueous solutions  NH4Cl and NaOH, CuSO4 and LiCl, Na2SO4 and Ba(NO3)2,  KNO3 ...

Q: The acid constants of the polyprotic acid НЗASO4 are К_a1 %3D 5х10 ^-3, К_а2 - 8х10^-8, К_а3 %3D 6х1...

A:

Q: For problem 5, the density of the sample is 0.9977 g/mL and the molar mass of calcium carbonate is 1...

A: Density of sample = 0.9977g/ml mass of 50ppm sample = 0.9977g/ml × 50ml = 49.885g = 0.049885kg Conce...

Q: of the following chemical laboratory practices are correct except    a. We should always weigh hygr...

A: Which statement is wrong:

Q: 1 Balance the following equations: a) C(s) bFe(s) + c) P(s) d) C,H,(g)+ --> CO(g) 2 FeCl,(s) P,O,(s)...

A: Given reactions are : a). C (s) + O2 (g) -------> CO (g)  b). Fe (s) + Cl2 (g) ---------> FeCl...

Q: Sodium hydrogen carbonate (NaHCO,), also known as sodium bicarbonate or "baking soda", can be used t...

A:

Q: Name each epoxide: CH3 a. b. C. (two ways) (two ways) CH Provide a systematic name for each of the f...

A:

Q: Procedure: 1. Label the two glasses hot and cold with respect to their temperature to avoid confusio...

A: As the kinetic energy increases the rate of diffusion increases. meanwhile rate of diffusion is dire...

Q: Model suggests that the interior of Uranus and Neptune do not have metallic hydrogen because Choose ...

A: Given that : We have to identify the reason why the interior of Uranus and Neptune do not have metal...

Q: 1. The combustion of a sample of aluminium produces 0.25 mol of aluminium oxide and releases 419 kJ ...

A: The combustion reaction of aluminum is given by: Als + 34O2g  → 12Al2O3s The enthalpy change in stan...

Q: What mass in grams of CO2 is evolved in the complete decomposition of a 2.300-g sample that is 38.0%...

A:

Q: Which of the following is NOT a characteristic of a polymer? * expensive than most materials poor te...

A: Polymers are formed by covalent bonds with small units. 

Q: Predict the product(s) for the reaction shown. 1. ВНа -THF 2. H2O2/N2OH/H2O CH2OH -OH OH + enantiome...

A:

Q: CH3 H3C H3C Name:

A: Rules for IUPAC Nomenclature of Aldehyde: 1. Choose the longest chain for parent naming. Aldehydes t...

Q: What organic product would you obtain from reaction of 1-pentanol with CrO3, H2O, H2SO4?

A: Structure of  1-pentanol  is CH3-CH2-CH2-CH2-CH2-OH which is a primary alcohol. 

Q: Define the following terms: (DO NOT COPY ON GOOGLE!) A. Molecular mass B. Mole

A:

Q: What is the percentage of manganese in the original sample?

A: Given  Mass of sample ore = 1.2354 g  Mass manganese sulphide = 0.2876 g  The percentage of manganes...

Q: 3. Assign point group to each of the following molecules: (a) NF3, (b) H2O2, (c) SF3C1

A: In the given question, we have to find out the point group of a given molecules. Point group is math...

Q: 16.85 To which of the following would the addition of an equal volume of 0.60 M NaOH lead to a solut...

A: Given :  Concentration  of NaOH solution = 0.60 M  pH = -log [H+]  So higher is the concentration of...

Q: Determine how many chiral centers are there?

A: Chiral molecules in which carbon atom with four nonidentical substituents. Such a carbon atom is cal...

Q: Make three different C–C disconnections on this ketoester and write out the structures of the starti...

A: C-C disconnection is the process by which target molecule is cleaved to a particular C-C bond to pre...

Q: A buffer solution of pH 7.30 will be prepared from a 50.00 mL solution of 0.075 M NaH2PO4 (K=6.3x10-...

A: Given, A buffer solution of pH 7.30 will be prepared from a 50.00 mL solution of 0.075 M NaH2PO4 (K=...

Q: Which of the following statements about buffers is TRUE? Select one: A. When pH = pKa, the weak acid...

A: An acid is substance which can release hydrogen ions and base is substance which can release hydroxy...

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.