1. What are the two figure all about?? 2. What chemical symbols do you see in both figures?? 3. How is figure A different from figure B??

Q: What are replicates in Analytical Chemistry? O The component of a sample that repeats over different…

A: Analytical chemistry is the repeated analysis of a single sample and is a measures of the greatest…

Q: nd contains 12.4g of hydrogen. What is the percent by mass of hydrogen in the compound?

A: Given A 37.1 g sample of an unknown compound contains 12.4g of hydrogen. What is the percent by mass…

Q: Part C How many Rh atoms would have to be placed side by side to span a distance of 7.5 µm ? Express…

A: Atom is the smallest  unit of ordinary matter which forms a chemical  element.

Q: A typical "lead" pencil is actually made from carbon. If the carbon in the pencil weighs 1.50 gram…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 13. While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a…

A: Let us assume that we have to two objects with masses 'x' and 'y'. If we have to calculate the…

Q: 2. Show that volt per meter is the same as newton per coulomb.

A: Given:- Show that volt per meter is the same as newton per coulomb.

Q: While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass of…

A:

Q: . While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass…

A: well, it is given that, the weight of percent of rock. hence we can calculate the average weight of…

Q: e mass of 1

A:

Q: A bottle of sodium hydroxide (NaOH) was found to contain 1.23 lb of this chemical. Express the…

A: The conversion factor can be described as the numerical factor that is used to convert one set of…

Q: Show your work, use general chemistry rules for significant figures. 6. A solution is made by…

A: Initially, we have 1.0 x 10–4 mol of Na3PO4 or PO43-(aq).  Since PO43-(aq) is a base, when we add…

Q: 8.55 In the process of Is the of I II? III Skill-Building in similar pairs) Student II writes: A1 +…

A: Given: A element = red atom B element = green atom

Q: Someone invents new units of measurement: grobs, hulks, and blubs. They define that 1 hulk is equal…

A: Given new units of measurement 1 hulk = 10-3 grob 7 bulbs = 377 hulks We can relate bulbs with grob…

Q: 1. Fill in the following table for the classification of matter: Anything that occupies space and…

A: The solution of above question is-

Q: Aluminum has an atomic radius of 0.1431 nm and weighs 26.9815 g/mol. Compute for its density

A: Given : Atomic weight of aluminium = 26.9815 g/mol. And radius of aluminium atom = 0.1431 nm =…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: How many grams of oxygen (O) are present in a 6.41 g sample of potassium nitrate (KNO3)? Enter your…

A: Potassium nitrate (KNO3) is ionic compound and it contains one potassium, one nitrogen and three…

Q: You are given a hammer a battery, a bulb, wires and switch(a) How could you use them to distinguish…

A:

Q: tफ्रिण कावड8 ली मत्च ड Prव्वेपण््dं wh उ.न्0 कd oकी ताक जC के Cागटर्नथेप क मकट Fगीvप्aणश कलललह व…

A: Given-> Mole of Cl2 = 3.00 mole Molar mass of HCl = 36.46 g/mole

Q: the mole is a common unit of measurement in chemistry you mat not be faniliar with mikes but one of…

A: Given : Mass of water i.e H2O = 290 g And mass of 1 mole of water = 18 g

Q: e mass of c

A:

Q: percent mass

A:

Q: If you have 52% silicon dioxide in a 12.09 g sample, what mass of silicon dioxide do you have?   Am…

A: Given, Mass % = 52%  Mass of sample = 12.09 g  Mass of SiO2 = ?

Q: A ?? BnO B ?? „NMe2 ?? MeO OMe HO

A: Organic transformations.

Q: 3. Is object E or object F more dense? [Assume the particles are uniformly distributed throughout…

A: Density of a substance is defined as the ratio of mass and volume. Density = Mass / Volume

Q: A sample of stainless steel contains 10.5% chromium by mass. What mass of chromium, in grams, is…

A: Given information,             Stainless steel sample contains 10.5% chromium by mass.…

Q: 13. While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a…

A: To find the average mass of rock collection we can use weighted average method.   In this method we…

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: How many moles does 120.30 g lithium represent? Use correct significant figures and units.

A: The number of moles of an element present in a given amount is calculated by using the following…

Q: Why are intensive properties useful for identifying a substance? A:They describe the amount of…

A:

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: How many oxygen atoms are in 9.00 g of AI2(SO4)3? Also use 2 decimal places.

A: This question involves calculation for the number of atoms present in 9.00 g of AI2(SO4)3 . For…

Q: 15. Cr(NH,),(NO,, # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The…

A: Elements are the type of substances which cannot be broken down into smaller substances. Group of…

Q: 2 .What is the 2nd most prevalent element in soil (name, not symbol)?   3. What is the name of the…

A:

Q: Substance AB2 is 60% A by mass.  What is the percent A by mass for substance AB?  Justify your…

A: For given compound AB2, 60% by mass is A then obviously 40% is B. That is for 100g of given…

Q: A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a) Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: What is the mass in grams of 8.91 × 1016 chromium atoms? Put your answer in box in scientific…

A:

Q: In an experiment similar to Perrin's, you counted the concentration of suspended particles in a…

A: First we check the relation between depth and number of atoms using the given two observation at two…

Q: A- The conversion with four significant figure of 12.3 mL = (L) B- Perform the conversions from…

A: Given problems,

Q: An unknown sample was found to contain the following: 10.62% H 42.04% O 47.34% C Use this…

A:

Q: What observations did Antoine Lavoisier make? What law did he formulate?

A: Antoine Lavoisier make an observation that in a chemical reaction matter is neither created    nor…

Q: What is the all chemical properties

A: Characteristics which helps us to differentiate one substance from another are known as properties.…

Q: What is the unit of energy? Select one: a. Joules b. Newton c. Kilograms d. moles

A: What is the unit of energy?

Q: NAME OF FOOD PRODUCT COMPOUNDS CONSTITUENT ELEMENTS 1. 2. Q7. What food product are in your list?…

A: A question based on chemistry for commercial purpose, which is to be accomplished.

Q: A sample of metal weighing 1.4 g is combined with oxygen; the metal oxide weighs 33.5 g. The mass…

A:

Q: The mass of ten paper clips was found to be 10.135 g. What is the average mass of a paper clip in…

A: Average or mean is the way to get the central value of any experimental data. It is one of the most…

Q: Perform the following mathematical function. 51.11 + (0.97/2.414 × 0.32150 × e.-3.25) + 1.52444 3.4…

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Q: d) c, and (e) p? red quantities: (a) 351 g,

A:

Q: 2.66 + 4.38 ×10* -1.0835×10 K K JK T -1.2517×10¬ K -2.85 + 6.543×10² K?

A: Now, ∆S298 =2S298oHcl-S298oCl2-S298oH2 ∆S298 =2×186.9-223.1-130.7∆S298 =20Jkmol

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.