QUESTION 10 Hexane (C6H14) is a common solvent used in extraction of oils from seeds or vegetables. How many molecules are contained in a sample of hexane if its mass is 100.0 g. 20 5.191 x 1027 6.986 x 1023 6.022 x 1023 QUESTION 11 How many atoms are contained in 5.000 g of carbon dioxide? 2.052 x 1023 6.022 x 1023 6.842 x 1022

Q: 5) 5.0 × 10-9 m to pm

A: The transformation of one unit into another unit is basically unit conversion. However, this…

Q: Which of the following is the greatest thickness: 1 mm, 0.1 cm, or 0.001 m?

A: 1mm, 0.1cm and 0.001 m are all of the same thickness.

Q: Use the References to access important values if needed for this question. A soda bottle is found to…

A: Consider the given information as follows; The volume of the soda bottle = 772 mL     The volume of…

Q: Please check my math 0.034 L = 0.000034 mL (enter only numerical value, no units) 0.034 X 0.001=…

A: Volume of the substance can be expressed in the units liter and milliliter. One litre (L) of a…

Q: Convert the value 3.35x10-8 L to use unit prefixes.

A: The given value is 3.35x10-8 L. We can convert this number into the unit prefixes as follows:

Q: B. Calculate the following information. USE THE FACTOR-LABEL METHOD TO DO YOUR CALCULATIONS!!! 1. A…

A: The density of a solution is calculated by the formula: Density=MassVolume   Note: Since you have…

Q: What changes would you make to obtain semi-quantitative results?

A: Quantitative  results are used in testing Of saccharides and monosaccharide  . It gives  an…

Q: what is the literature value for the density of water to four significant figures?

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: What is the mass, in grams, of 28.66 mL of acetone? Express your answer using four significant…

A: To calculate the mass of a substance, you need to know its density. The density of acetone…

Q: Classify each of the following particulate level illustrations as a representation of either pure…

A: Pure, homogeneous, and heterogeneous substance can be defined on the basis of solution.

Q: covert  1 x 10^3 to standard notation

A: A number expressed in the form  a × 10b is called scientific notation . To convert a number from…

Q: Convert the value 7.01x105 g to use unit prefixes.

A: The given unit of mass is 7.01×105 g.

Q: The volume of a container is found to be 38.5 in³. What is the volume in units of cm³?

A: 1 inch is approximately equal to 2.54 centimeters. thus 1 inch = 2.54 cmNeed conversion from in3 to…

Q: A student mixes some soap with water and then blows through a straw into the solution. is it a…

A: Physical changes are those which do not involve any chemical reactions to be taking place only the…

Q: decide if the given statement is true or false,and give a brief justification for your answer.If…

A: Given statement,    In the metric system, the concentration of chemical in a tank of solution is…

Q: A patient with ovarian carcinoma is prescribed intravenous Taxol, at a recommended dosage of 175.0…

A:

Q: What is the standard SI unit for mass?

A: Mass is a measure of the amount of matter in a substance. Mass measures the amount of matter…

Q: What is the standard SI unit for volume?

A: Volume of any object/species is the measure of the amount occupied in it's three dimensional space.…

Q: 1) Perform the following conversions. 399 g to mg 370 oz to L 125.0 in to m 2.36 mL to L 3401.00 g…

A:

Q: Baking Soda Mass (g) Recorded (no units): Number of significant figures for baking soda mass sample:

A: Introduction A chemical molecule with the formula NaHCO3 is sodium bicarbonate (IUPAC name: sodium…

Q: How many milliliters are in 22mm3?

A: From the standard conversion units it is given that,                 1 mm3 =0.001 mL

Q: The ? stands for a number the student is going to calculate.)   Fill in the missing part of this…

A: The ratio which represents the relationship between two different units is known as a conversion…

Q: 9. Perform each conversion within the metric system (a) 3.55 kg to grams (b) 8944 mm to meters (c)…

A: (a) To convert kilograms to grams, you multiply by 1000 since there are 1000 grams in a kilogram.…

Q: would this answer be following the correct number of significant figures

A: For a given question, the answer should be reported in required number of significant figures if…

Q: Consider the following two volume measurements: 57.7 mL and 57.68 mL. Which of these is the more…

A: Two Volume Measurements:57.7 mL57.68 mLMore precise measurement: Needs to be determined

Q: Sugar-water solution Sand ethod to separate the sand from the other substances in the

A: As we know,  sand form heterogeneous mixture with water.  So, we can separate mixture by simple…

Q: Which of the following would indicate a physical change has occurred? O Bubbles are produced State…

A: Answer :-  State of matter changes (ex. water becomes steam)…

Q: Particles of solid liquid gas -Energy and movement of particles in solid liquid gas -Spaces between…

A: States of matter.

Q: Which of the following is a mixture? O All are mixtures salt water O vegetable soup O blood

A: mixture is formed when two different substances are mixed and they mixed physically,  no chemical…

Q: Volume of water in beaker (mL) Beaker reading 60 50 40 30

A:

Q: A humidifier located at a nursing station holds 4.00 galloons of water . How many fluids ounces of…

A:

Q: In 38.7 mL of water, a gold nugget weighing 523 g is inserted. The volume of the water increases to…

A:

Q: If a red and green solution are mixed and an orange mixture esults, is this evidence of a physical…

A: Physical change is the change in which physical property of the compound changes and it is…

Q: 11) Convert the following. Set up each problem using dimensional analysis. You may need to refer to…

A: We know that,  1 kg= 1000 gram 1gram=100cg 1gram= 1000mg So,

Q: Calculate the density Mass 100g volume40 cm³ Mass 250g. Volume 56cm³ Mass 50 g. Volume 1cm³

A:

Q: A prescription has been ordered for a patient to receive ½ tsp po bid for 14 days. How many…

A: Solution: As we know, po means prescription should be taken by mouth bid means twice a day

Q: Express 70 mM in the units of μmol/mL

A: Millimolar(mM) is defined as the number of millimoles present in 1 litre of the solution.

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.