Define the mole, and calculate the molar mass of a compound from the molecular formula.

Q: a) Identify the following as element (atomic or molecular), compound or mixture. b) Explain your…

A: An atom of a element is composed of a single nucleus with a unique number of protons surrounded by…

Q: Define salt

A: Salt is a chemical compound consisting of an ionic assembly of an ionic assembly of cations and…

Q: What is the formula for water vapor

A: Water can be in three possible stetes in the free environment i.e. solid, liquid and gas. Water…

Q: What is the difference between molecular mass and formula mass? Between molecular mass and molar…

A: Atoms are the basic building blocks of matter. Molecules are defined as the particle contains two or…

Q: why lung and soft tissue appear different on a radiograph when they have both an effective atomic…

A: The radio graphic image will appear according to the effective atomic number.

Q: The atomic number on an element tells us the number of

A: An atom is made up of three kinds of subatomic particles called protons, neutrons, and electrons,…

Q: BSA mg/ml O.D. 550nm 1 0.12 2 0.23 3 0.34 4 0.41 5 0.52 Use the values above to draw a graph

A: BSA  Bovine serum albumin is a albumin protein which is extracted from cow  and used in experimental…

Q: . define acid and base and interpret the pH scale;

A: pH is considered as the potential or power of hydrogen ion.

Q: Compare the characteristics of an acid, a base, and a salt.

A: Acid is a chemical compound which is naturally present in fruits, vegetables, and can be derived…

Q: What do you call to the unit amount of a substance used for measuring large quantities of very small…

A: The mole (particularly millimoles and molarity) is a commonly used unit in medicine. For example,…

Q: Elements have varying numbers of protons, neutrons, and electrons.True or false?

A: Atom is the smallest particle of an element that is composed of subatomic particles such as,…

Q: Define pH and give some examples.

A: pH:             pH ~ depicts about the 'potential of hydrogen' or 'power of hydrogen'      Which…

Q: Explain the boiling point of a compound ?

A: The melting point is the temperature when a solid substance is starting to convert into liquid. The…

Q: Describe the differences among acids, bases, and salts.

A: A solution is said to be a acidic, basic and salts and can be categorized on the basis of their…

Q: Convert between mass and moles using the molar mass of a substance.

A: Molarity is defined by a number of moles of a substance in a solution (in litres). Molar mass is…

Q: Distinguish between a hydrogen ion and a hydroxide ion

A: Water molecule is composed of two hydrogen atoms and an oxygen atom. It dissociates into two ions.…

Q: Describe ionization and distinguish between anions and cations.

A: Ion, is any atom or group of atoms with electric charges positive or negative.

Q: What determines whether a substance is an acid or a base? Brieflyoutline the pH scale.

A: pH is the figure that represents whether the given solution is acidic or alkaline on a logarithmic…

Q: name common monoatomic anions and cations.

A: Ions are charged atoms or molecules. It is formed due to the addition or loss of an electron by the…

Q: Determine the number of atoms in 30.0 g of P, with the correct amount of sig figs.

A: One mol of any substance is equal to avogadro number of molecules or atoms. In such cases you are…

Q: If 65 percent of your body mass is water, determine how many kilograms of water you contain.

A: Water is the main component of the human body and it forms nearly 60% of body mass. Different organs…

Q: what is the ph scale?

A: The questions ask to define the pH scale.

Q: What does pH measure?

A: pH is defined as a measuring scale used to measure the two nature of solution as acidic and basic.…

Q: Discuss the significance of ph?

A: pH is defined as the negative logarithmic concentration of hydrogen ions in a solution. So, pH…

Q: What is 10.2ml in liquid volume?

A: When measuring the volume of a liquid, sometimes referred to as capacity, the units litres (L) and…

Q: If a 0.2g of oil consumed 1ml of sodium thiosulphate, calculate its Iodine value and classify the…

A: Lipids are classified into fats, oil, and wax. Fats are also called triglycerides, where three fatty…

Q: What is 4.5ml in liquid volume?

A: The measurement of the exact amount of space occupied by a liquid in a standard container is termed…

Q: Decide whether the following are chemical or physical mixtures.

A: The matters are everything around the ecosystem. The matters must have some weight and it has to…

Q: pH represents the:

A: Answer - pH stands for potential of hydrogen and it is calculated as negative logarithm of hydrogen…

Q: give the reference range for 15 constituents included in a chemisty profile?

A: The reference range is also known as the normal range. The reference range of a substance is…

Q: determine the density of a metal that has a mass of 2.17g and a volume of 0.35 cm^3

A: The unit of density is gm/cm3 .

Q: What is the approximate atomic mass of an atom with 16 neutrons, 15 protons and 15 electrons?

A: Atomic mass is described as the number of protons and neutrons in an atom.

Q: Name several inorganic compounds.

A: Inorganic compounds: These are those compound which does not contain hydrogen and carbon bond where…

Q: Define the following terms: a. hydronium ion b. acid c. base d. Ka e. pKa

A: In the solution, when a compound reacts, there is a formation of the product. In the chemical…

Q: How is molarity defined?

A: The most common method used to express the concentration in the laboratory is molarity (M). Molarity…

Q: Explain the basis of the formula for TDS, TSS and TS.

A: TDS is defined as the portion of organic and inorganic solids passing through the same filter.

Q: Write out a recipe to create the following solution: 5ml of 300mM Sodium Citrate (molecular weight -…

A: Molarity It can be calculated using the formula: M=n/V(L) n=w/mol.wt. M =w/mol.wt. × v We have to…

Q: What are trace elements? Name the trace elements. Enumerate the function and disorder of any one.

A: Trace elements are the elements that are present in the body in very small amount. They account for…

Q: ·A rectangular solid measures 8 cm long by 2 cm wide by 2 cm high. What is the…

A: Answer. 9/4   Explantion:-    Given:- Rectangular Solid with measurement:- 8 cm long X 2 cm wide X 2…

Q: Object A has a mass of 40g and a volume of 30mL and object B has a mass of 15 g and a volume of 20…

A: Ans 30. Density is the mass per volume measurement. The average object density refers to its total…

Q: Describe the packing of atoms/ions in the crystalline material of MgO.

A: Asked : MgO packaging of atoms.

Q: Explain Ionic Forms of Elements Most Frequently Encountered in the Body?

A: Although inorganic substances (minerals) are also essential for a healthy body, organic molecules…

Q: Which are the Trace Elements: Less than 0.01% of Total Atoms in the Body?

A: On Earth, 92 elements are found in their native state. Only 11 of these elements are present in…

Q: identify the properties of ionic compounds and explain how the nature of the ionic bond is reflected…

A: Introduction- Elements present in the bond create higher differences which formed an ionic bond. The…

Q: explain the formation of anions and cations based on periodic trends.

A: Ions Charged particles are called ions  Cations The positive charged particles are called cations…

Q: Distinguish between polar and ionic compounds.

A: A polar bond is formed due to sharing of electrons and ionic bonds are formed by a complete…

Q: Describe the way an ionic solid dissolves in water

A: Ionic compounds are ones that are made up of oppositely charged atoms, known as ions, that are…

Q: The ph value of human blood is_____?

A: The maintenance of blood pH within the body is an essential for health. Multiple human body systems…