when drawing melting point composition diagram for a mixture of something such as cinnamic acid and urea comparing melting point vs composition for organic chemistry, if i have three different compositions (1:4, 4:1,1:1) should i have 3 different graphs or would this all be on the same graph? and how do i convert grams to moles for example for composition 1:4 my data was 0.8003 g : 3.1917 g?

Q: PLEASE DON'T WRITE YOUR ANSWER ON A PAPER. I CAN'T UNDERSTAND HANDWRITTEN. 2. It is 3:00 in the…

A: Coffee is prepared from roasted coffee beans which is the seeds of coffee fruit.It contains caffeine…

Q: Q25:  There are so many microbes in a single mL of culture, it is very difficult to perform one…

A: Given: 2 serial dilutions are performed, each with a value of 1 (dilution)

Q: Based on the graphs, which distillation seemed to be the most successful? Which was the least…

A: Distillation is the process of separating the liquid components by using the difference in their…

Q: It is important to check the information attached to a product before using it.* True False Consists…

A:

Q: Question attached

A: In this given video link, the experimental determination of the empirical formula of magnesium oxide…

Q: Elements are also used by our bodies for various chemical process. Give at least 5 of these elements…

A: Given :  Elements are also used by our bodies for various chemical process. Give at least 5 of…

Q: QI/A-Fill in the blanks 1- 2- is the collection of all of the components in the sample containing an…

A: Given:  Q1/ A- Fill in the blanks is answered here. Since more number of questions are asked, first…

Q: About Gravity, tick only the incorrect alternative(s), choose one or more: a) In gravimetric…

A: Gravimetric analysis is a technique used in inorganic labs to determine the amount of analyte…

Q: 1a. Throughout the experiment, what are some possible sources of error that could have led to…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: If you do not heat your crucible strongly enough to remove all volatile impurities when you heat the…

A: The loss of water happening during the inital heating or during the second heating is not relevant.

Q: You measure your drug concentration in solution at ten minutes and an hour. You get 2 mg/ml at ten…

A: Given,  drug concentration at 10 mins is 2 mg/ml  And at 60 mins is 12 mg/ml

Q: More than 40% of the world's population has limited access to clean water. One proposed method for…

A: Separation technique is used for the purification and separation of substance. Some of the…

Q: The structures of three compounds are shown below. Based on elemental composition of protein, which…

A: answer is - option a ) Adding compound B would significantly increases the apparent abundance of…

Q: When 0.501 g of sucrose (table sugar, white microcrystalline solid) is dissolved in water (clear…

A: Quantitative  data are data which are obtained experimentally and helps In quantification of element…

Q: The formula for lactose is C12H22O11, and the monohydrate is C12H22O11*H2O. What is the percent by…

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

Q: Sublimation, dissolving, and filtration can only be carried out in:* soluble-substances in solution…

A: Here three process occur  1) Sublimation - This method is used to separate a substance that sublimes…

Q: Organic chemistry:What does a percentage yield of 55.16 and percentage recovery of 181.30g mean .I…

A: Percentage yields and percentage recovery are two different things that are used to indicate the…

Q: What is the difference between a fractionation and a distillation?

A: The main difference between fractional distillation and simple distillation is the application in…

Q: 118kg/m3 is equal to how many g/cm3?  Give your answer to three below the decimal place.

A:

Q: What problems of society can analytical chemists help in finding solutions? How do they do it?…

A: Analytical chemistry deals with the analysis of different substances. In the process firstly, the…

Q: The solvent moves 3 cm in about 10 minutes. Why shouldn't the experiment be stopped at that time…

A: In chromatography, the solvent along with components moves through the chromatographic sheet very…

Q: Determine the formula weight of caffeine, C₈H₁₀N₄O₂. Provide an answer to two decimal places.

A: The formula weight of caffeine can be calculated as follows:

Q: Give 5 examples of any organic compound which changes in the same way as sugar and benzoic acid when…

A: Sugar and Benzoic acid are both organic compound having made of carbon and hydrogen as skeleton .…

Q: A heterogeneous mixture Is the one which O has one phase O has a uniform composition throughout O…

A: The question is based on the concept of solutions . We have to identify which of the given…

Q: Use the equation in the Example box on page 34 of the lab manual to answer this question. For a 100…

A: The question is based on reaction stoichiometry. we have to calculate mass of phosphorus pentoxide…

Q: What is the mass percentage of C in caffeine, C₈H₁₀N₄O₂? Provide an answer to two decimal places.

A: Mass percentage of an element in a molecule is calculated by using the formula Mass % of element = n…

Q: Suppose you have a bucket of sand containing 1.5 billion grains of sand ( 1.5×109 grains). Most of…

A: Total number of grains = 1.5 ×109 grains Concentration of brown sand is = 4.0 %  The number of brown…

Q: In 1993 the Minnesota Department of Health set a health risk limit for 1,2-dlbromoethane In…

A: Given information,    Health risk limit of 1,2-dibromoethane is 4.00 ng/L.    Volume of water sample…

Q: The formula for lactose is C12H22O11, and the monohydrate is C12H22O11H2O. What is the percent by…

A:

Q: Consider these compounds: A. BaF2 B. PbCrO4 C. PbI2 D. ZnS Complete the following statements by…

A: The question is based on the concept of solubility product Principle.   it states that a weak…

Q: A monolayer containing 3.21 × 10 –6 g of oleic acid has an area of 20.0 cm 2. The density of oleic…

A: Given, mass of oleic acid = 3.21 × 10 –6 g            density of oleic acid = 0.895 g/mL…

Q: Yuno wants to assess the quality of water in the Clover Kingdom and the Heart Kingdom. In order to…

A:

Q: The ingredients contained in grape Kool-Aid can be approximated as: • water (H2O, density = 1.000…

A: Given: Volume of solution = 500 mL = 0.500 L                         (Since 1 L = 1000 mL) Mass of…

Q: Kerosene has a specific weight of γ_k = 51.1 lb/ft³ and benzene has a specific weight of γ_b = 56.2…

A: Density of substance is calculated by dividing mass with volume.

Q: Calculate the moles of Na25203 using the following data: • Sample volume (mL) = 200.0 • Buret…

A: Molarity (M) or molar concentration of a solution is defined as the number of moles of solute…

Q: A mixture of water (D = 1,000 kg/m3) and alcohol (D = 791 kg/m3) has a density of 920kg/m3. Is this…

A: The quantities which come across during the scientific studies are named as physical quantities. The…

Q: A 5.0 g coal sample is given for analysis. After subjecting it to hot air oven at 107 oC for 1 hour,…

A:

Q: What is Horney's theory in modern society

A: Horney's theory in modern society - Basic anxiety is a term used by psychoanalytic theorist karen…

Q: 4. Preservatives that are usually found in cured meats, bacon, ham, corned beef and hot dogs. A.…

A: Concept based on Food preservatives and their uses.

Q: 4. Two engineers are serving as trainees in a laboratory of a pharmaceutical company. One of their…

A: Given: % of C in the sample = 59.0 % % of H in the sample = 5.0 % % of N in the sample = 22.9 % % of…

Q: David decides that it is better to create a blend containing 50% NaCI, 33% KCI and 17% CaCl2, than…

A:

Q: If there is 0.5 g of lead (Pb) present in 270 g solution, what is the Pb concentration in parts per…

A:

Q: 1. Heating can remove some or all of the "waters of hydration". Does heating the chemical structure…

A: We use the heating of hydrated salt experiment to find the amount of water present and subsequently…

Q: Which of the separation processes given below use the extraction process? I) Getting sugar from…

A: I) Getting sugar from sugar beet

Q: Data ) Mass of Sodium Salicylate (g) 115a X 2) Concentration of Sodium Salicylate (M) 287 10M…

A: The concentration of the solution can be measured in various units the commonly used is molarity.…

Q: a.     Given the reactions of the standardization and sample analysis, give the correct molar…

A: (a) Standardization of Sodium thiosulfate : As shown in above reaction, the standardization of…

Q: 82. Danny is being careful in handling acids in the laboratory. In diluting acids, she puts the…

A: Reaction of acid with water is exothermic which is vigorous in nature. So, its necessary to add…

Q: The ______________ is the physical method of separation illustrated in this process: About three…

A: Answer The mixture form two separte layer. One is Aqueous layer and…

Q: Determine the empirical formulas for the compounds with the following percentage compositions. 34.…

A: