solution is prepared disolving 2.00g of an substance in 10.0mL in water at 25°C. The freezing point of the substance is -0.350°C. Determine the molar mass of the substance. (Kf H2O=1.86°C) (Density H2O=0.9970g/mL)

Q: c) With the indication of sense strand, template strand, the direction of transcription, provide…

A: Ans. Sense strand: The sense strand is considered as the coding strand of the double-strand DNA,…

Q: Qu Which of the following is an Arrhenius base? A KNO, B H,SO, c CH,0 12 6 D KOH

A: Arrhenius base is Compound which can give Hydroxide ion (OH-) when dissolved in water .

Q: The pH of a 1.1M solution of propanoic acid (HC,H,0,) is measured to be 2.41. Calculate the acid…

A:

Q: a) If you want to prepare a galvanic cell with the redox couples the Sr2*/Sr (E0= - 2.89V) and…

A: Given that, the redox couples are Sr2+/Sr (E0 =-2.89 V) and Zn2+/Zn (E0 =-0.76 V). a) We have to…

Q: that the [Formic acid] By mixing formic acid and sodium formate a buffer solution was prepared in a…

A: Given :- a buffer solution is prepared by mixing formic acid and sodium formate  [Formic acid] =…

Q: why it makes sense to use an internal standard in IR spectrometry when its not used in Uv-Vis

A: Solutions- Internal standard method is used in Infra-red spectrophotometry.

Q: Laboratory Task Based on the video lecture on alcohol, phenol, and ether, and previous notes on…

A: Diethyl ether is an organic compound with an ether functional group: attached to ethyl groups…

Q: Give a small explanation.

A:

Q: What is/are the major product/s of the following reaction? Choose as many answers as possible

A:

Q: How many mL of (1.2000x10^-1) M nitric acid are needed to react completely with (3.35x10^1) mL of…

A: Given that, 2HNO3 + Na2CO3-----> H2O + CO2 +2NaNO3 Concentration of nitric acid=1.2000*10-1M…

Q: For the reactionA → B + C, the following plot gives a straight line, with the indicated slope and y…

A: The answers are given below

Q: e temperature a

A:

Q: Name the major product of the reaction between (S)-2-bromohexane and KCH3COO. Be specific with the…

A:

Q: (b) Complete the following reactions and suggest plausible mechanism. Mention the step where the…

A: The Answer Of the Following Questions are given as below:-

Q: он CH3 H.C.

A: Here we have to predict the best solvent that can able to differentiate the pair of given organic…

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 x 10° years. Suppose…

A:

Q: Predict the multiplicity and integral of the signal corresponding to the proton(s) indicated below.…

A:

Q: A 16.4 g sample of hydrated calcium sulfate is heated until all the water is driven off. The calcium…

A: Weight of hydrated calcium sulphate = 16.4 gm Weight of calcium sulfate = 13.0 gm

Q: What is the purpose of producing NADPH in the pentose phosphate pathway? NADPH is used in ATP…

A:

Q: 8) Calculate the %(w/w) of solute in the following solutions. Hint find solution mass. a)11.5g of…

A: Formula used --- %(w/w)=mass of solute×100%/mass of solution

Q: b. с. OH

A: Here we have to synthesize the given target compound from starting material bromomethylcyclohexane…

Q: Q-I: Determine the product(s) of the rxn and llustrate the mechanism. AlCl3 Q-II: Determine which…

A: We have given the product of the reaction with mechanism. Q-I:

Q: The pH reading of a sample of each substance is given. Calculate the hydrogen ion concentration of…

A: Given that, a) Spinach  pH = 5.4 then,

Q: An acid solution at an initial concentration of 0.015 M. the pH of the acid solution at equilibrium…

A:

Q: reducing agent?

A:

Q: Calculate the pH of a solution that is (This problem requires values in your textbook's specific use…

A:

Q: Soalan/ Question 3 The weight of a certain population of young heifers is approximately normally…

A: We asked to find the probability of subject that selected at random from given population. The…

Q: Titanium (Z = 22) has two electrons in an incomplete d subshell. (a) What are the values of n and {…

A:

Q: 13) How many milliliters of 0.250M AgNO3 would be needed to react exactly with 20.0g of NaCl? pure…

A: Silver nitrate reacts with sodium chloride to form silver chloride and sodium nitrate. The equation…

Q: Which term best describes the relationship between the following two molecules? న , వంా OH HO" Br Br…

A: we need to find the relationship between the two molecules given

Q: When acid is added to a color indicator, it changes from purple to pure blue at a pH = 5.75. When…

A: Concept:  Acid-base indicators: They are chemicals used to determine whether an aqueous solution is…

Q: You dissolve 25 g of CaS04 in water and dilute to 1500 mL. What is the molarity of this solution?…

A: Molarity is the moles of solute dissolved in1 litre of solution .

Q: 10. What is the absolute configuration of the compound below? Br CH, B. 3R. 4R, SR C 35, 45, SR D.…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: The Ksp of Pbl2 is 8.4 x 10^-9. The molar mass of Pbl2 is 461.03 g/mol. The mass solubility (g/L) of…

A:

Q: What is the product (s) of the following Reaction? H2 Rh (PPH3),CI B A O D&E O C&E O A&B C&D .....…

A:

Q: What is the absolute configuration of the carbon in the given molecule below?

A:

Q: Which of the following is suitable to use when forming grignard reagent

A: Grignard reagent has general formula of R/Ar-MgX , where R is an alkyl group and Ar is an aromatic…

Q: The standard reaction free energy AG=-1181. kJ for this reaction: 4 H,0,) + PbS(s)– PBSO(s) + 4…

A: Given, 4 H2O2(l) + PbS(s) ➝ PbSO4(s) + 4 H2O(l) ∆G° = -1181 kJ a) 8 H2O2(l) + 2 PbS(s) ➝ 2 PbSO4(s)…

Q: Question 13 Compute the mass of KCI needed to prepare 1000 mL of a 1.50 M solution. Show your work.…

A: Given- Volume=1000mL=1L Concentration=1.50M

Q: Grams of solute /100 g H,0 Suppose 100 g of NaNO, 60°C. Using the solubility curves below, which…

A: For this we need to understand levels of saturation from solubility curves - Unsaturated solution-…

Q: sing the uiermodynamic information in the ALEKS Data tab, calculate the sta C(s, graphite) + 2Cl,…

A: Given-> C(s)  +. 2Cl2(g) -----> CCl4(g)

Q: Laboratory Task Based on alcohol, phenol, and ether, and previous notes on electrophilic aromatic…

A: Here we have to explain why boiling point of diethyl ether is less than butan-1-ol.

Q: partition coefficient

A: Given: Some amount of compound A is dissolved in 100 mL of water. When 100 mL of DCM is added, 80%…

Q: (CH),CuLi CH3 b) HOCH,CH,OH CH3 c) H,NNHC,H, HC. CH3

A:

Q: Give an examples of a redox reaction.

A:

Q: Which of the following is the correct condensed structural formula for the structure below? O…

A: we need to covert the given structure to its condensed formula

Q: 4.25 L of a gas is collected at 298 K and 2.5 atm. What is the volume at STP? Input numerical answer…

A:

Q: Which of these molecules contains the more basic nitrogen? O Neither molecule is basic. O They are…

A: The compound having the ability to donate a pair of electrons is basic in nature.

Q: Show the correct equation of Gas law,the variables and what is held constant for the law

A: Gas law relates the pressure, volume and temperature of a gas with each other.

Q: When dry ice (solid CO 2) sublimates, its entropy (A) increases (B) decreases (C) does not change…

A: sublimation is an endothermic process , means is heat used up in sublimation process from the…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.