A 75.0 sample of a natural product isolated from alfalfa hay was dissolved in water to make 100.0 mL of solution. The solution did not conduct electricity and has an osmotic pressure of 0.246 atm at 27.0c. What is the molar mass of this compound

Answers

Answer 1

Answer:

Sorry i dont know

Answer 2

Answer:

What is the vapor pressure of an aqueous solution that has a solute mol fraction of c = 0.100? The vapor pressure of water is 25.756 mm Hg at 25°C.

12) The vapor pressure of an aqueous solution is found to be 24.9 mm Hg at 25°C. What is the mole fraction of solute in this solution? The vapor pressure of water is 25.756 mm Hg at 25°C.

9) Determine the molarity of an aspirin solution that produces an osmotic pressure of 0.0555 atm at 25°C (i = 1).

10) A saline solution is administered intravenously to patients who cannot take fluid orally and are in danger of dehydration. The osmotic pressure of this solution must match that of blood to prevent hemolysis or crenation of blood cells. What mass of sodium chloride (58.44 g/mol) is needed to produce 100.0 mL of saline solution with an osmotic pressure of 7.83 atm at a body temper

Explanation:

Related Questions

MEDICAL FORENSICS

please help me i only get one chance to do this please

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Answer:

i think the answer is b temperature

Answer:

Explanation:

What happens if excess carbon dioxide is not removed from the atmosphere?

A) a decrease in the amount of fossil fuels availabe

B) it may lead to global warming

C) more dead plants and animals not decomposing before getting buried

D) increase in the amount of fossils fuels available

please help fast I need to bring my grade up I'll give 30 points.

Answers

Answer:

Carbon dioxide becomes a poisonous gas when there is too much of it in the air you breathe. Besides the effects it can have on the planet and the atmosphere, carbon dioxide poisoning can lead to central nervous system damage and respiratory deterioration in humans and other breathing creatures.

Answer:

Explanation:

Hope This Helps! [ :

What is the percentage by mass of chromium in sodium dichromate (VI) Na2
Cr2
O7
?

Answers

Answer:

39.7%

Explanation:

To obtain the percentage composition of chromium (Cr) in Na₂Cr₂O₇, do the following:

Molar mass of Na₂Cr₂O₇ = (23×2) + (52×2) + (16×7)

= 46 + 104 + 112

= 262 g/mol

Mass of Cr in Na₂Cr₂O₇ = 2 × 52 = 104 g

Percentage composition of Cr = mass of Cr / Molar mass of Na₂Cr₂O₇ × 100

= 104 / 262 × 100

= 39.7%

Thus, the percentage composition of chromium (Cr) in Na₂Cr₂O₇ is 39.7%

Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols. situation chemical reaction.

A strip of solid tin metal is put into a beaker of 0.074M MgBr2 solution .

Answers

Answer:

Sn(s) + MgBr2(aq) --> SnBr2(aq) + Mg(s)

Explanation:

Decide whether a chemical reaction happens in either of the following situations.

- A reaction happens. The type of this reaction is the single replacement reaction.

If a reaction does happen, write the chemical equation for it.

Sn(s) + MgBr2(aq) --> SnBr2(aq) + Mg(s)

Other Questions

Entry to a certain University is determined by a national test. The scores on this test are known to be normally distributed with a mean of 725 and a standard deviation of 115. Harriet wants to be admitted to this university and she knows that she must score better than at least 75% of the students who took the test. Harriet takes the test and scores 874.5. 1. (2pts) What percentile did Harriet score in? 2. (2pt) Will Harriet be admitted? Wh Shota tried to subtract two polynomials. His work is shown below: \begin{aligned} &\phantom{=}(12a^2+3ab+4b^2)-(7a^2-5ab+b^2) \\\\ &=12a^2+3ab+4b^2-7a^2+5ab-b^2&\text{Step }1 \\\\ &=(12+3)a^3+(3+4)b^3+(-7+5)a^3+(5-1)b^3&\text{Step }2 \\\\ &=15a^3+7b^3-2a^3+4b^3&\text{Step }3 \end{aligned} =(12a 2 +3ab+4b 2 )(7a 2 5ab+b 2 ) =12a 2 +3ab+4b 2 7a 2 +5abb 2 =(12+3)a 3 +(3+4)b 3 +(7+5)a 3 +(51)b 3 =15a 3 +7b 3 2a 3 +4b 3 Step 1 Step 2 Step 3 5. Identify the reactants in this chemical equation:2H3PO4 HAP20, +H2O PART A: Which sentence from the article is based on a reasonedjudgment?A "Six of the majors are named for the continents embedded withinthem, such as the North American, African, and Antarctic plates."(Paragraph 1)B "Mount Everest, the highest point on Earth, may be a tiny bittaller tomorrow than it is today." ( Paragraph 4)C "At ocean-ocean convergences, one plate usually dives beneaththe other, forming deep trenches like the Mariana Trench in theNorth Pacific Ocean, the deepest point on Earth." ( Paragraph 6)D "These boundaries don't produce spectacular features likemountains or oceans, but the halting motion often triggers largeearthquakes, such as the 1906 one that devastated SanFrancisco." ( Paragraph 9)PART B: On which piece of evidence is the reasoned judgment in PartA based?A scientific theories based on geologic events in the pastB scientists' opinions about geologic eventsC descriptions of similar geologic events in the pastD predictions about geologic events made by scientists severalcenturies ago Expand: logh(9jk) Log Subscript h Baseline 9 times log Subscript h Baseline j times log Subscript h Baseline k Log Subscript h Baseline 9 + log Subscript h Baseline j + log Subscript h Baseline k Log 9 + log j + log k Pre-school mathematicalName:Date:Time:"solving the addition 1.) 14+10=2.) 13+12=3.) 16+23=4.) 18+14=5.) 23+41=6.) 11+12=7.) 14+14=8.) 13+15=9.) 13+41= 10.) 13+12=Good luck and God Bless for answering dear kiddies I give this for free HURRY WILL MARK AS BRAINLIEST IF RIGHT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! A text that contains comparisons, analogies, and categories can help readers make connections and distinctions among people, ideas, and events in the text. These things, in turn, can help readers understand the text. Which of the following sentences indicate clear connections or distinctions? Select all that apply.(A) Venus is almost the same size as Earth.(B) A planet must orbit the sun in a clear path.(C) Jupiter is so large that 1,321 Earths could fit inside it. (D) Observers discovered that Saturn has not one ring but several. (E) The outer planets are rotating masses of mostly hydrogen and helium. (F) Its toxic atmosphere and hot temperatures make Venus extremely volatile. (G) Asteroids, comets, and meteoroids are all pieces of rock or ice that are not part of a planet. how many solution's does each graph of system of linear equations have? Which of the following options best depicts the process of protein synthesis?1. protein RNA DNA2. DNA amino acid RNA protein3. DNA RNA protein4. RNA DNA RNA protein What is 2/7+7/8 Help Take a stand. Who do you think is the greater hero, Hercules or Perseus? Defend your position with evidence from the text.heres link to storyhttps://collierhighschool.com/UserFiles/Server_776213/File/Mythology/persues%20and%20medusa.pdfpleaseee helppo 6p equals to.................. A Pick out the verbs from the following sentences and say whether they aretransitive or intransitive. Point out the subject of each verb and the object of atransitive verb.1. Javeria was sleeping soundly. explain how the cells, tissue, and organs within the circulatory system work together to enable it to perform its function of pumping materials around the body and removing waste products such as carbon dioxide. solve help3+ x + 4 = In the number 8246315 what digit is in the hundreds place? Which feature allowed the city of Rome to be defended?its location on seven hillsits location in a valleyits location on the southern tip of Italyits location on the Po River Solve the equation y 5x = 7 for y. A. y = 5x 7 B. y = 5x 7 C. y = 5x + 7 D. y = 5x + 7 it is the activity of creating articles or literary pieces for electronically navigate another document shared post.