Answered: 4. What weight (in grams) of lactose…

4. What weight (in grams) of lactose (C12H22011 , MW= 342 g/mole) is required to prepare each of the following solutions: a. 100 mL, 7% (w/v) c. 250 mL, 2 mM d. 1000 mL, b. 500 mL, 0.1 M 100 ppm

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Which of the following solvent pairs cannot form a miscible solution? a. and and H3COH and and d. H…

Q: How many milliliters of glycerin is needed to make 400 mL of a 540 mOsm/L solution? (MWglycerin = 92…

A: Here given that, The volume of solution = 400mL And Osmomolarity = 540 mOsm /L

Q: What is the volume of H20 in mL that 0.300 g of Ba(IO3)2 (molar mass= 487 g/mol) should dissolve in…

A: The solubility product constant, Ksp, is the equilibrium constant for a solid substance dissolving…

Q: grams of sa

Q: A solution of KCIO3 has 40 grams of the salt dissolved in 200 grams of water at 50 °C. Approximately…

Q: Ement 15: Colligative Properties Experiment 15: Colligative Properties 7. Solution preparation: a.…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What volume of 10 ma/m % KOH solution is needed (with a density of 1.09 g/cm3) to neutralize 25 cm3…

A: Let the mass of KOH solution be 100 g.10% m/m. Therefore mass of KOH = 10g = 0.178 moles.Volume of…

Q: 8. A 300 ml solution of 0.55M sodium Chloride solution was evaporated. How much salt by welght was…

A: Mass of NaCl is 0.00965 gram

Q: 31. How many liters of a mouthwash can be prepared from 100 mL of cinnamon flavor if its…

A: % v/v concentration is defined as the milliliters mL of solute dissolved in 100 mL of solution…

Q: Starting from a 0.365M CuSO4 solution, which of the following amounts of solute from said standard…

A: To Find: To find the amount of solute from said standard solution, we need to prepare 200 ml of…

Q: Express as % solution: 1. 80 mg of urea in 0.45 L of water 2. 8 mg/dL saline

A: 1) Given : 80 mg of urea in 0.45 L of water. Assuming volume of solution = volume of water = 0.450 L…

Q: Part 1: For each person, calculate the total number of osmolytes in the ICF and ECF and their body…

A: After understanding the problem statement lets move to the answers part.

Q: 10. What is the initial volume, in mL, needed to prepare each of the following solutions? a. 250 ml…

A: For dilution of solution, apply C1V1 = C2V2

Q: how would you make 500ml of a .090M solution of CaCl2 from pure soild CaCl2

A: Since all the term used in the molarity are known, excluding mass of solute (CaCl2). hence, we can…

Q: A 30% solution of ethanol in H₂0 at 20oC has a density of 0.95 g/ml. What weight ethanol is…

Q: Rey has two quarts of a 21% acid solution and three paints of a 35% solution. If he mixes what will…

A: Per cent solution is usually considered to be weight by volume (w/v). It refers to mass of solute…

Q: Tropicamide Sorbic acid Sodium chloride Purified water ad Make isotonic solution 0.1% 0.02% q.s 60ml…

A: To make the isotonic solution, the amount of sodium chloride (NaCl) required can be calculated using…

Q: 1. Consider a solution (20 ppm atrazine, Methanol), (fw atrazine 215.68) a. What is the…

A: 1) Parts per million (ppm): It is defined as the parts of solute in one million parts of solution.…

Q: The osmotic pressure of a solution formed by dissolving 25mg of aspirin (C9H8O4) in 0.25L of water…

A: The osmotic pressure of any non electrolyte solution is given by Osmotic pressure = CRT where C =…

Q: A 0.9% solution of NaCl is considered isotonic to mammalian cells. What molar concentrations is…

A: The given solution is 0.9 % solution of NaCl which means 0.9 g of NaCl is present in 100 mL water.…

Q: A 5.5L solution contains 1.5 kilogram of ethylene glycol (C2H6O2) and has a density of 1.8g/ml.…

Q: Part 1 1.85×101 mglucose solution made by dissolving the glucose in 100.0 kg of water: Part 2…

A: Molarity (m) of a solution can be defined as the ratio of moles of the solute to the mass of solvent…

Q: New August 3, 2021. A 500 mL of 8% (w/v) aqueous Na,SO4 solution is prepared by Select one: O a.…

A: The percent weight/volume is calculated by the formula, % w/v=g of solutevolume of solution×100

Q: Draw what the mixture "looks" like at the molecular level Draw a PEC diagram and explain why this…

Q: How would u prepare 10ml of a 0.25% m/v HCI solution of 1% m/v HCI was available? How much 1% m/v…

Q: A student took 6 g ethanol (density 1.5g/ml) and made a cream of them whose total weight = 200g,…

A: The mass of ethanol is = 6 g The total mass of ethanol and cream is = 200 g The percent…

Q: In which solvent will lauric acid (CH3(CH2)10COOH), the primary component of coconut oil, dissolve…

A: Lauric acid is one of the members of carboxylic acids. It is one of the primary components of…

Q: A 5.23 X 10-5 mole protein is dissolved in 31.2 mL of water at 28°C. What is the osmotic pressure of…

A: Osmotic pressure is given be π = CRTWhere π = osmotic pressure C = molarity of solution R =…

Q: The molecular weight of sucrose is 342g/mol. How many grams would you need to weigh out to make 25ml…

Q: Q1: A solution of 100 mL of 1.17 % (W/V) NaCl is prepared in a laboratory; calculate the NaCl…

A: Note :as per our guidelines we are supposed to answer only one question. Please repost other…

Q: 5. How many grams of CaCL2₂ (MM = 110 g/mol) should be dissolved in H₂O to prepare a liter of 1.2M…

Q: How many milliliters of hetastarch 10 % (w/v) solution and hetastarch 2.5 % (w/v) solution is…

Q: What is the final volume (LL) of each of the following diluted solutions? a 8.0 %% (m/v) KOHKOH…

A: 8% m/v KOH solution means 8 g of KOH is present in 100 ml of solution. 20% KOH solution means that…

Q: 3. Which aqueous solution will have the lowest freezing point? The lowest boiling point? a. 0.050 m…

Q: How do you prepare a 250mM acid solution from a 1M stock citric acid solution?

A: The concentration of citric acid stock solution (C1) = 1M Assume the volume of the stock solution…

Q: 5. Determine the number of equivalents: a. 20 g of NaCi b. 15 g Of NaOH c. 35 g of Ba ( )2 d. 0.5 g…

A: Formula for Number of equivalents = Given MassEquivalent massEquivalent mass =Molar massn- factor…

Q: Calculate for the mass of glyceraldehyde (C3H6O3) needed to prepare 250 mL of each of the following…

A: Given To prepare 250 mL of each of the following solutions, a. 78% (w/v)b. 1.65 Mc. 890 ppm

Q: on 12 of 21 > Macmillan Learning 1 Q A solution contains 0.575 g Ca²+ in enough water to make a 1825…

A: Given Mass of Ca2+ = 0.575 g Volume of solution = 1825 ml = 1.825 L Known values Molar Mass of Ca2+…

Concept explainers

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.

Question

4. What weight (in grams) of lactose (C12H22011,
MW= 342 g/mole) is required to prepare each of the
following solutions:
a. 100 mL, 7% (w/v)
c. 250 mL,
2
mM
d. 1000 mL,
b. 500 mL, 0.1 M
100 ppm

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

What is the freezing point of a solution of 0.208 moles of the nonelectrolyte urea (60.06g/mol) in 600.0g of benzene.(The normal freezing point of benzene is 5.50 oC and Kf = 5.12 oC/m) Select one: a. 1.77 oC b. 3.73 oC c. 7.27 oC d. 1.06 oC e. 4.44 oC
What is the molarity of 50 grams H2SO4 in 1,500 ml solution? Mwt of H2SO4 is 98 g /mole
What is the final concentration if 100 mL of a 20% w/v solution is diluted to 250 mL with water? Select one: A. 8% w/v B. 0.08% w/v C. 10% w/v D. 50% w/v
4) In which solvent will lauric acid (CH3(CH2)10COOH), the primary component of coconut oil, dissolve the most? Select one: a. Water, H2O b. Octanol, CH3(CH2)7OH c. Carbon tetrachloride, CCl4 d. Methanol, CH3OH
Just question 8 please I need a complete solution :(
1. What is the boiling point of a 3.62m solution of C2H6O2? 2. What is the melting point of a 3.6m C2H6O2?
Calculate the ff: a. Calculate the boiling point of an ionic solution containing 30.0g Na2SO4 and 80.5g water. b.What is the osmotic pressure of a 0.075 M solution of an aspartic acid is at 18.5⁰C? c. What is the boiling point of a solution made by dissolving 31 g of NaCl in 559 g of water?
How many milliliters of 0.1M aqueous Sodium Hydroxide solution can be prepared from 10 gm ?of Sodium Hydroxide اخترأحد الخيارات a. 2500 ml b. 2.5 L c. 5000 ml أخل اختياري
A. How many grams of NaBr are there in 196 grams of an aqueous solution that is 9.81% (w/w) NaBr? ___g B. if an aqueous solution is 6.65% (w/v) in sodium bromide,NaBr,how many grams of sodium bromide are there in a liter of solution? _____g
27. Find the freezing point of a solution of 990 g of CH3OH in 2.5 kg of water. Use the water f.R-depression constant: K(H,0) = = 1.86 °C/{mol(solute)/kg(solvent)} A) +123 °C B) +77 °C C) +23 °C D) -0.74 °C E) -23 °C
Phenobarbital elixir contains 4g of phenobarbital drug in a 1000ml solution. The percentage of phenobarbital is, Select one: O a. 40% ОЪ. 4% O c. 0.4% O d. 0.04% NEXT PA
A- Express the concentrations (given for water solutions) in PPm, molarity, and molality: 5 mg S(sulfur) per Liter. (The atomic weight of S-32). B- What is the approximate M and N of 13% solution of H₂SO4 which has a specific gravity of 1.09 ? To what volume should 100mL of the acid be diluted in order to prepare a 1.5N solution ?