The cups shown at the right contain different amounts of water kept at different temperatures. Answer the following questions using the information included on the figure. a) The water in cup has a higher thermal energy. has a higher temperature. b) The water in cup c) Heat would flow from cup d) The molecules in cup to cup are moving the fastest.
Q: Define concentration
A: The term concentration has different meanings in different context. Here, the biological or…
Q: What do you mean by optimum temperature?
A: A chemical reaction is a process that converts one or more substances into another substance.…
Q: CH2OH CH2OH CH2OH CH2OH он он OH H OH OH + H2O → OH OH HO Но но OH OH OH OH OH OH The reaction above…
A: The simple sugars called the monosaccharides can be joined together to form the disaccharides and…
Q: Which of the following can be attributed to water’s high specific heat? A- oil and water do not mix…
A: Specific heat definition : Amount of heat required to raise the temperature of 1 gram of a substance…
Q: What type of chemical reactions are the below 2 reactions? Decomposition or Synthesis?…
A: Decomposition reaction:- Breakdown of larger substance/ molecule into smaller units or parts. Eg:-…
Q: A decreased in entropy is associated with which type of reaction ?
A: Entropy is in simple terms represents the disorder of a system. Entropy is thus a representation…
Q: Figure below shows the solid fat content (SFC) curve for cocoa butter versus temperature. How will…
A: Fats are one of macronutrients present in our body which is storehouse of energy and also it keeps…
Q: What exactly is energy?
A: To define: Energy
Q: Define inorganic phosphate.
A: DNA stands for deoxyribonucleic acid. It is the genetic material of the organisms that transfer from…
Q: Why oil gets hot faster than the water?
A: Lipids are macromolecules that help in the structure and function of the living body. They are not…
Q: What does a higher viscosity result in?
A: Anything that has mass and occupies space is known as matter. There are three main states of matter…
Q: compounds are the products? Carb
A: Carbon dioxide can be defined as a chemical compound that is composed of one carbon and two oxygen…
Q: Water can absorb a large amount of heat without much change in temperature because it has a high…
A: An important property of water is that it is a polar molecule. The hydrogen atoms and the oxygen…
Q: If burning 1 gram of cornflake (in a calorimeter) caused the temperature of 23.0°C water (100 mL) to…
A: Calorie: The calorie is the energy required to raise the temperature of 1 gram f water by 1°C. Its…
Q: Why can water absorb a great amount of heat with little increase in its temperature? What is this…
A: Heat capacity is defined as the amount of heat provided to the material to bring out a unit change…
Q: Why liquid is more difficult to move than air?
A: Ans: Liquid: It is defined as an incompressible fluid that takes shape of its container. Air: The…
Q: Match each fatty acid with its melting point.
A: Lipids are macromolecules that play an important role in the structure and function of the living…
Q: Which four chemical elements make up the bulk of a cell’s dryweight?
A: Cells are the biological, structural and functional unit of an organism. Cell has a nucleus. Nucleus…
Q: Which would have a higher boiling point - a sample of sugar water (sucrose dissolved in water)or a…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: If the cells of your body oxidize 1 mole of glucose, by how much would the temperature of your body…
A: Specific heat capacity is defined as the amount of energy required to raise the temperature of 1 kg…
Q: What is defined as the chemical reactions that break down food molecules in cells to release energy?
A: Chemical reactions involve the transformation of one chemical into another. Such chemical processes…
Q: In daily life, why does freezing important in food?
A: Food preservation is one way of protecting food from microbial development. Food needs to be…
Q: Why is an input of energy needed for all chemical reactions?
A: In a chemical reaction, the reactants of a reaction are transformed into products once the reaction…
Q: Define solution, solvent, and solute.
A: A solution is made up of two components, namely solute and solvent. Any solute and solvent will form…
Q: Which has greater entropy, liquid water at 0°C or ice at 0°C?
A: The measurement of the thermal energy of the particular structure with temperature when there is no…
Q: What happens to a piece of bread when you chew it thoroughly?
A: The hydrolysis reaction of saliva is faster than acid. Saliva contains an enzyme known as amylase…
Q: The barrier that must be lowered before a spontaneous chemical reaction can proceed is
A: initial input of energy is needed to proceed the occurring of chemical reaction as well as the…
Q: Hot air at 50 C does not cause a lethal burn on our skin, but water with the same temperature is…
A: yes its true that Hot air even at 50C can not burn our skin, but water with same temperature can…
Q: In the iodine clock experiment, if you increase the volume of vitamin C used, would the reaction…
A: The iodine clock experiment or reaction is the very famous experiment for the understanding of…
Q: Highest melting point CH; (CH,)COOH CH;(CH, ),,COOH 12 CH; (CH, ),CH=CH(CH, ),COOH CH;CH, (CH=CHCH,…
A: A fatty acid is one of the most important biomolecules in our system. A fatty acid contains a…
Q: Can the heat capacity of water be considered small or large? What is the biological significance of…
A: Step 1 Heat capacity (Cp) is the amount of heat required to change the heat content of one mole of…
Q: what is the relationship of enzyme and temperature
A: Proteins that operate as biological catalysts are known as enzymes. Catalysts speed up chemical…
Q: Water has unusually high specific heat. What does this mean?
A: The question is saying that "water has unusually high specific heat".We need to determine the…
Q: Suppose you have 150 mL of a 2.4 M glucose solution. How many moles of glucose do you have
A: Molarity is a term to define the concentration of a solution.
Q: If a reaction is spontaneous, does that mean it will be fast?
A: Introduction: A spontaneous reaction is the one that occurs on its own. However, it has nothing to…
Q: Why is water necessary for life?
A: A water molecule is made up of two hydrogen atoms bonded to a single oxygen atom. It is a polar…
Q: In the following chemical reaction, which compounds are the products? Carbon dioxide + Water → Sugar…
A: For any reaction to get complete substrate is required. The resultant is called as product.
Q: Why should starch solution be freshly prepared
A: The polymeric carbohydrate starch, also known as amylum, is made up of multiple glucose units joined…
Q: Cellular pH is kept near a value of seven, due to the action of. O 1. salts O 2. buffers 3. acids 4.…
A: The power of hydrogen is represented as pH. It is found to be a measure of the concentration of…
Q: Explain solutes, solvents, and hydration.
A: Solutes : Solutes are the substances which dissolve in other substances, named as solvents. The…
Q: The process in the Water Cycle by which water is converted from a liquid to vapor by use of heat is…
A:
Q: What is concentration?
A: In biology, we measure some of substances. Also, perform various tests where we prepare various…
Q: What would happen to a normal chemical process in your cells if the shape of the enzyme controlling…
A: Generally, the active sites of enzymes are attacked by the toxic chemicals. These chemicals inhibit…
Q: Is water a hypertonic, hypotonic, or isotonic solution?
A: Organisms exist as long as their living cells can sustain suitable physical and chemical conditions…
Q: Describe the distinguishing characteristics of the three classes of essential chemical elements…
A: Matter is anything that occupies space and has mass. Matter is made up of atoms. Atoms are the…
Q: Why are food frozen at a temperature below 0°C?
A: Food gets spoiled with time. Various techniques are used for their preservation for a longer…
Q: What are chemicals that speed up the rate of chemical change?
A: A chemical change is referred to a change in which one substance is transformed into another with…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- Indicate whether each of the following is due to an increase in pH, a decrease in pH or neither and explain why: __Makes carrots soften more when cooked __Color shifts due to adding chlorine to cake flour __Lowers the amount of iron sulfide formed in hard cooked eggs __Makes anthocyanins more red __Makes an egg white foam more stable __Makes starch dextrinize when heated in boiling water __Raises osmotic pressureIf Ca(NO3)2 solution is added to the saturated CaSO4 solution;Solubility product of CaSO4 (KÇ)II. Solubility of CaSO4III. The concentration of Ca + 2 ionWhich of these or which decreases at the same temperature? A) I only B) II only C) III only D) I and II E) II and IIIA group of students designed an experiment to determine the impact of sucrose concentration on the weight of potato cubes. The pieces of potato were initially the same weight, shape, and size. Each potato piece was submerged into a beaker containing one of the sucrose concentrations for 30 minutes. The final weight of the potato was measured and recorded in the table. Which TWO conclusions can be correctly drawn from this data? A In the 0.4 mol/dm3 solution, the sucrose molecules moved across the semi-permeable membrane to go from a lower solute concentration (the potato) to a higher solute concentration (the sucrose solution), leading to a decrease in the weight of the potato. B In the 1 mol/dm3 solution, the water molecules moved across a semi-permeable membrane to go from a lower solute concentration (the potato) to a higher solute concentration(the sucrose solution), leading to a decrease in weight of the potato. C In the 0.8 mol/dm3 solution, the sucrose molecules moved…
- Match each weak acid with the pH value at which it would buffer. pH 3 ammonium (PK, of 9.25) chloroacetic acid (pK, of 2.87) acetic acid (pK₂ of 4.76) formic acid (PK, of 3.8) pH 5 Answer Bank boric acid (PK, of 9.24) pH 9 hydrazoic acid (PK, of 4.6)3 mL of a 45 mM stock solution of a substrate is added to 8 mL of water. Calculate the following values. The substrate molecular weight is 125 g/mol. Calculate the following values: Substrate Volume in mL Dilution Factor Substrate number of moles Substrate concentration for the diluted solution in mM Substrate concentration for the diluted solution in mole/L Substrate concentration for the diluted solution in mg/mLA 1.143 g sample contains only vitamin C (C,H, 0,) and sucralose (C,H,Cl, O,). When the sample is dissolved in water to a total volume of 31.7 mL, the osmotic pressure of the solution is 3.91 atm at 285 K. What is the mass percent of vitamin C and sucralose in the sample? vitamin C: sucralose: %
- In an experiment, identical heat lamps are arranged to shine on two identical containers, one containing water and the other containing, methanol, a nonpolar compound. Each liq- uid absorbed the same amount of energy minute by minute, and the change in tempera- ture over time was recorded for each molecule. The results from the experiment are illus trated in the graph below. A B 40 с temperature (°C) D 25 The heat-related temperature of water and methanol increases over time. methanol Which of the following best explains the results illustrated in the above figure? time (minutes) water 20 Water temperature increases more quickly because part of the supplied heat energy is used to transition the water molecules from a liquid physical state to a gaseous physical state, which does not occur in methanol Water temperature increases more quickly because part of the supplied heat energy is used to break the hydrogen bonds between water molecules, which do not occur be tween methanol…What type of chemical reactions are the below 2 reactions? Decomposition or Synthesis? Protein amino acid + amino acid + amino acid ____________________________ Glucose + Glucose Maltose __________________________________Table 2. Volume of BSA, protein content, and absorbance readings of reference solutions Solution Volume of BSA standard solution (μL) Protein content(μg/mL) Absorbance value At 595 nm 1 0 0 0 2 10 1 0.022 3 30 3 0.065 4 50 5 0.106 5 70 7 0.178 6 100 10 0.299 7 120 12 0.380 Make a graph by plotting the absorbance values versus the BSA protein content (in μg) for theseven reference solutions. When constructing the graph, be…
- A patient is suspected of having low stomach acid, a condition known as hypochloridia. To determine whether the patient has this condition, her doctors take a 18.00 mL sample of her gastric juices and titrate the sample with 3.94 x 10-4 M KOH. The gastric juice sample required 6.60 mL of the KOH titrant to neutralize it. Calculate the pH of the gastric juice sample. Assume the sample contained no ingested food or drink which might otherwise interfere with the titration. pH = Enter numeric value For the patient to be suffering from hypochloridia, the pH of the gastric juices from the stomach must be greater than pH 4. Does the patient have hypochloridia? no O unable to determine O yesA patient is suspected of having low stomach acid, a condition known as hypochloridia. To determine whether the patient has this condition, her doctors take a 18.00 mL sample of her gastric juices and titrate the sample with 4.85 × 10-4 M KOH. The gastric juice sample required 1.26 mL of the KOH titrant to neutralize it. Calculate the pH of the gastric juice sample. Assume the sample contained no ingested food or drink which might otherwise interfere with the titration. pH = For the patient to be suffering from hypochloridia, the pH of the gastric juices from the stomach must be greater than pH 4. Does the patient have hypochloridia? unable to determine no yesUsing this information, answer the questions below: SOLUTE TESTED FOR POSITIVE CONTROL (COLOUR) NEGATIVE CONTROL (COLOUR) Glucose Green/orange Blue Starch Blue/black Yellow Protein Dark purple Blue Sodium Chloride Cloudy white Clear 1. Does the result below mean the compound is present or absent in the unknown substance? Solute Tested For Clarity Conclusion (Present/Absent) Glucose Light Blue 2. Does the result below mean the compound is present or absent in the unknown substance? Solute Tested For Clarity Conclusion (Present/Absent) Starch Yellow 3. Does the result below mean the compound is present or absent in the unknown substance? Solute Tested For Colour Conclusion (Present/Absent) Protein Purple 4. Does this result mean the compound is present or absent in the unknown substance? Solute Tested For Colour Conclusion (Present/Absent) Starch Blue/Black