Question 5 White gold has the following composition by mass: 14 parts gold, 5 parts silver, and 5 parts nickel. What is the percentage of gold in white gold?

Q: is a homogeneous mixture and not a compound. Explain 2. How could you tell when the milk mixture had…

A: Milk is a homogeneous colloid. Colloids are mixtures that consist of tiny, insoluble droplets…

Q: 4. Behavior of Soap Solution Upon Addition of Acid (vinegar) a) Obtain a clean test tube and put…

A: Since the soap solution is basic one and which is made up by the process of soapnification. When it…

Q: 1. Construct a heating curve for Toddium, using the following information. a. Melting point of 15°C…

A: The heating curve of the element provides information about the change in phase of a substance with…

Q: Before heating 4 qt. saucepan 8 qt. stockpot 24.5 °C Temp. 24.5 °C Temp. After heating for 5 minutes…

A: Water has specific heat constant of 4.184 J per g per oC which means that 4.184 J of energy is…

Q: What were the advantages and disadvantages of each measuring device? (Buret, Volumetric pipet, and…

A: The accuracy and precision of measurements in chemistry are crucial to ensure reliable and…

Q: 14. A researcher finds that a solid has high melting and boiling points, and is soluble in water.…

A: Ionic compound is a chemical compound composed of ions held together by electrostatic forces termed…

Q: record this value as final temperature of water. Allow the charcoal-like residue from the nut sample…

A:

Q: In a distillation column, what is the purpose of the reboiler? A) To condense the vapor B) To…

A: The purpose of the reboiler in a distillation column is: B) To provide heat to the column Reboilers…

Q: An unknown liquid is added to a beaker of water. After a few minutes you discover that unknown…

A: Like dissolves like. It means polar solvents are miscible in polar solvents and non-polar solvents…

Q: t penetrates matter most easily is:

A: Radioactivity related with small particle emission which have large mass number and charge. The…

Q: 3. A fireproof safe is made of two thin metal boxes, one inside the other, with equal spacing…

A: When smaller box is placed in larger box , some of the volume will remain empty between the boxes.…

Q: Match the correct word with the description. v Blood is an example of element. A. v Air is an…

A: Elements are those substances which contain the same atoms with same number of protons while…

Q: Recall from earlier this semester- what does heterogeneous mean?   a. A mixture of chemicals which…

A: The term hetero means different. Which means the mixture should be in different environment so that…

Q: You are given a beaker containing a clear yellow liquid on top of some dark green powder. Which type…

A: Based on your description, it seems like you may have a solution of a yellow-colored compound on top…

Q: What buret volume should be reported? Enter a value without units.

A: curved surface at the top of liquids known as meniscus If the meniscus is a concave meniscus, read…

Q: My Data: Ensure Nutrition Shake: 0.038 g/mL Class Data: Group 7:Ensure: 0.0233 g/mL Is 0.0233 g/mL…

A: The measured values are not close to the true value and thus this value is not accurate.

Q: A quantity of substance that can be seen would be considered the A level.

A: The complete sentence is: "A quantity of substance that can be seen would be considered the…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.