How many joules are required to boil 150 grams of water?
Q: Why was sodium carbonate used in the extraction of caffeine from coffee?
A: Sodium carbonate: It is an inorganic compound is also known as soda ash, washing soda, and soda…
Q: What is the purpose for ground substance?
A: Ground substance is also called matrix. It is an intercellular material in which the cells and…
Q: What is the pH of a 0.2 M solution of ammonium nitrate (NH4NO3)?
A: Ammonium nitrate is the salt of a weak base and a strong acid hence it is slightly acidic due to…
Q: Is the time required to Elute substance A, greater if N=1000 or N=2000?
A: N is number of theoretical plates in column Retention time (RT) is a measure of the time taken for a…
Q: How to count the number of colonies forming units per milliliter (CFUs per ml) of the sample?
A: A viable cell is one that has the ability to divide and form a colony. The colony-forming unit (CFU)…
Q: What is the turgid in the water?
A: Osmosis is the process by which the solute molecules are transported from higher concentration to…
Q: What is the range of pocket thermometer?
A: They are lightweight digital thermometers. They have a built in pocket clip. It is constructed using…
Q: Which method is suitable for determining the amount of water in food?
A: The food business relies on moisture content analysis to ensure food shelf life and quality, but…
Q: What happened when a potato strip placed in distilled water?
A: Osmosis is the movement of of water from area of high concentration to area of low concentration…
Q: Why do some bacteria grow in the presence of salts?
A: Carl woese in 1990, devide living world in three groups or domains Archaea, Bacteria and Eukarya.…
Q: How many times more water does beef require, compared with chicken?
A: The food with the highest water footprint is beef and it uses six times more amount of water than…
Q: How do you account for the difference in reaction between fresh and rancid oil?
A: Oil is a naturally occurring ester that is found in both animals and plants. It belongs to a group…
Q: Why potato strip increase in size when placed in distilled water?
A: Osmosis is defined as the movement of water molecules from the higher water potential region to the…
Q: What are the types of wax bath?
A: There are many types of therapeutic baths that are prescribed by the physician according to the…
Q: How does the concentration of H+ change when a culturemedium at pH 5 is adjusted to pH 9?
A: pH is the measure of acidity or basicity of a solution. If pH of a solution is 7, then it is…
Q: Will bakers yeast make alcohol?
A: Fermentation is also termed as alcoholic fermentation. It is a chemical process in which sugar is…
Q: What should happen when you add magnesium salts to the soap solution and then what happens when you…
A: Soap is a cleansing and emulsifying agent that is made usually by action of alkali on fat or fatty…
Q: how many minute does it take a sugar to dissolve in hot water?
A: Sugar dissolves more quickly in hot water than cold water because of kinetic energy of particles.…
Q: Why efficascent oil is green liquid?
A: Efficascent oil is a liniment for the treating pains associated with muscles and joints. It is…
Q: How did your soap compare to the commercially prepared soap?
A: If we wash oily/ greasy hands with soap then only oil/grease gets removed. In the…
Q: What is the source of litmus used for measuring pH?
A: Ph indicator is a chemical compound when added to a solution in small amount changes its colour that…
Q: Distinguish between acid and rennet curds.
A: Curdling is the process through which curd is obtained by coagulating milk. The coagulation can be…
Q: What is gram atomic mass?
A: The smallest unit of common matter is the atom. Protons, neutrons, and electrons make up every atom.…
Q: What is the function of immersion oil?
A: Immersion oils are transparent oils that have specific optical and viscosity characteristics…
Q: What happened when potato strip placed in salt water?
A: 1) A solution mixture that exhibits a higher concentration of salt than the surrounding medium. Then…
Q: Why do the leaf disks in the baking soda solution (treatment) begin to float?
A: The baking soda solution used in floating disk photosynthesis demonstration. Release of Oxygen in…
Q: what is oil immersion and why is it used
A: Light microscope is a microscopic instrument which uses visible light and magnifying lens to to view…
Q: What is the pH of a cleaning solution with a [H3O*] = 7.4 x
A:
Q: What is a periodic kiln?
A: kiln A kiln is a type of oven with a thermally insulated chamber that produces temperatures high…
Q: Why is scale formation typically only a problem in hot water pipes?
A: Scaling is a deposition process of calcium and magnesium salts.
Q: How does a nitrate addition prevent sulfide souring ofcrude oil?
A: The presence of a higher concentration of sulfur in crude oil defines the sour crude oil. It is an…
Q: What happens when you heat ice at 0°C? (Section B C)? What is this added heat being used for?
A: You have asked multiple questions. I will answer your first question which also has two parts.…
Q: How do you make 70 ml of a 60% solution??
A: The making of solutions of different concentrations can be achieved with the help of principle…
Q: What made the pepper on water move upon the addition of the dishwashing liquid?
A: Water molecules are composed of two hydrogen molecules covalently bonded to one oxygen molecule.…
Q: Why does Alka-Seltzer foam and bubble when dissolved in water? Which ingredient is the antacid?
A: Alka- Seltzar is a type of medicine which is used to cure indigestion, stomach pain or upset…
Q: what is the chemical formula for cooking oil?
A: Cooking oil consists of a mixture of the different types of the fatty acids added to cook and give…
Q: Why is it necessary to store the molten agar in a water bath at 50 degrees Celsius?
A: Introduction:- Agar is made up of two polysaccharides: agarose and agaropectin, with agarose…
Q: Aside from Paraffin, what is your recommended infiltrating medium for routine purposes? why?
A: INFILTRATION is the process in which the clearing agent is completely removed from the tissue and…
Q: What is the limit to growth at low pH?
A: As we know growth is being affected by many external and internal conditions. Out of those few are…
Q: Why are emulsions important in food preparation?
A: Emulsion is a solution formed by the mixing of two immiscible liquids. An emulsifier helps to…
Q: In keeping a bottle of vegetable oil with no preservative, it must be coveredtightly and…
A: Triacylglycerols are lipids present in oils that have a glycerol backbone with the three hydroxyl…
Q: Why did we add agar after we measure the pH?
A: pH means p stands for potential or power.H stands for Hydrogen atom.It is the power of the Hydrogen…
Q: What is the formaldehyde emission rate of particleboard?
A: Asked : The formaldehyde emission rate of particleboard
Q: If a more concentrated initial solution bicarbonate was used in beaker C, would it require more or…
A: In a neutralization reaction, number of moles acid and bases are always equal at neutralization…
Q: How sodium chloride regards acid production in cheese?
A: All Cheese is formed due to lactic acid fermentation of milk which results in coagulation of milk…
Q: If the agar instructions say to mix 50 grams of agar in 1 liter of water, how many grams of agar…
A: 1 litre/ 1000 mL needs 50 grams of agar 1 mL needs 50/1000= 0.05 grams of agar 100 mL needs 0.05 X…
How many joules are required to boil 150 grams of water?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- a)Determine the amount of X (in gram) in order to prepare 100 mL of 50 mM stock solution of X. Show your work. (MW of X= 225) b)Determine the volume required (mL) from the stock solution X in (i) to prepare 500 mL of MS medium containing 5 mg/L X. Show your work.How many ml 2M NaOH would it take to neutralize 20 ml of 0.5M HCI?If a 250 ml solution of ethanol in water is prepared with 4 ml of absolute ethanol (100%), what is the dilution factor?
- What is the density of a 400 µL cell suspension given the following data?You have a 1000X stock solution of sodium chloride (NaCl). The concentration of NaCl in the stock solution is 5M. a)How would you make 300mL of a 1X solution? b)What is the concentration of NaCl in your 1X solution?How do you calculate the amount of ammonium sulfate necessary to get a 20% solution?