In chemistry class, if a student used 2.0 grams of baking soda (NaHCO3) to absorb an acid spill, how many molecules of NaHCO3 were used? Answer the equation in the format in the picture posted, answer In scientific notation.

Q: rgahic compound has a gram molecular weight of 372 g/mol, and its composition is 38.6% carbon, 9.76%…

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Q: The movie below shows some molecules in a tiny sample of a mixture of gases.

A: A question based on introduction to chemistry. The given movie is to be verified to whether the…

Q: A lab analysis of an organic compound showed it is made up of 60.00% C, 5.75% H, and 34.25% O. If…

A: Given, C = 60.00 %  H = 5.75 %  O = 34.25 %  Molecular mass = 560.56 g/mol

Q: Does a chemical reaction happen during this movie? If a chemical reaction does happen, write a…

A: The start of the movie shows the conversion of reactants into products. From the key, it is clear…

Q: You have a super powerful microscope in your lab!  You are able to zoom in on your sodium phosphate…

A: An atom is the basic and fundamental unit of matter. An atom consists of electrons and the nucleus…

Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: Molar mass of any element is equal to the atomic mass of that element in the unit of grams. Molar…

Q: 3CO + Fe₂O3- 2Fe + 3CO₂ If 5.06 x 1024 molecules of carbon monoxide (CO) reacts with 6.54 x 1024…

A: From the given reaction it is clear that Co : Fe2O3 : Fe = 3:1:2  According to the data provided, CO…

Q: Balance the following chemical equation. If the chemical species needs a "1" in the blank to balance…

A: The given unbalanced chemical equations are  Blank 1 HCl (aq) + Blank 2 Al(OH)3 (s) →Blank 3 AlCl3…

Q: 2NaCl + 1 Br2 → 2 NaBr + 1 Cl2     How many moles of NaCl are there in 99 grams of NaCl?  If you…

A: a) Given, Given mass of NaCl = 99 grams b) Given, Amount of NaCl is 31 grams c) Given, Amount of…

Q: Jeff followed to procedure for Experiment 4, and collected the following data, which he recorded on…

A: Answer: In this experiment and unknown metal carbonate has been made to react with HCl and by…

Q: MISSED THIS? Watch KCV: Writing and Balancing Chemical Equations, IWE: Balancing Chemical Equations,…

A: Balancing of chemical equations means the number of individual atoms in product side must be equal…

Q: A chemist adds 365.0 mL of a 2.1 mol/L nickel(II) chloride (NiCl,) solution to a reaction flask.…

A: Molarity is the moles of substance present per unit volume. Molarity = moles of solute / volume By…

Q: Mass of Zn 2.44 g Mass of Cu 0.063 g The mass of Zn and the mass of Cu in a coin are given in the…

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Q: Based on this information, what was the mass of the sample before and after heating? (Grams)

A: Mass of sample before heating = 31.909 - 30.453 = 1.456 gm

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. How many molecules of C₆H₈O₆ does a Vitamin C…

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Q: How many O atoms are in 80.4 grams of Al(NO2)3? (The molar mass is 165.01 g/mol.)

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Q: Which reactant is the limiting reactant? O NO Which reactant is in excess? O2 O NO

A: The correct options are as follows:

Q: A + B → AB f 5 grams of substance A combines with 9 grams of substance B to form the product, AB.…

A: It is done by using law of mass action and Limiting reagent Limiting reagent : Which Effects the…

Q: What is the total number of oxygen atoms on the right-hand side of this chemical equation? 3…

A: As per the law of atomic conservation  conservation (during any chemical reactions) atom can neither…

Q: ? The balanced chemical equation for this reaction is shown in the image below. Enter your answer as…

A: GivenSodium =5 gOxygen = 5 g

Q: Assuming gasoline to be pure octane, C8H18 (actually, it is a mixture of many substances), an…

A: An automobile getting 22.7 miles per gallon would consume 5.10x10^23 molecules per mile. Find out,…

Q: 2 NazPO4 ( ) + CaCl2 ( ) – NacI ( ) + Ca3(PO4)2 ( ) Fill in the remaining coefficients to properly…

A: sodium phosphate reacts with calcium chloride to form sodium chloride and calcium phosphate…

Q: 8. To obtain pure lead, lead (II) sulfide is burned in an atmosphere of pure oxygen. The products of…

A: Here lead sulphide reacts with oxygen to give lead and sulphur trioxide.

Q: Use the Conservation of Mass Interactive to answer the question. Consider the reaction. MnS(s) + 2…

A: According to the law of conservation of mass, "Mass can neither be created nor be destroyed, but it…

Q: How many oxygen atoms are present in 3.20 g of Al2(SO4)3? Express your answer in scientific notation…

A: The number of moles of a substance is calculated by dividing the given mass of that substance by its…

Q: What is the total number of hydrogen atoms on the right-hand side of this chemical equation?…

A: Given balanced chemical equation is,a balanced chemical equation: A chemical equation is said to be…

Q: the following question based on the chemical equation below.                                     2…

A: Given -> Moles of C2H6 = 3.85 mole  Moles of O2 = 15.0 mole

Q: Safrole, one of the flavor molecules in sassafras, contains only C, H, and O. Combustion of 10.0 g…

A: Given that - Safrole contains only Carbon, Hydrogen and oxygen as constituent elements. On heating…

Q: Question 15 How many molecules of carbon monoxide (CO) are needed to react with excess iron (III)…

A: The balanced chemical equation is  Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) The mass of iron is 11.6 g…

Q: Answer the following question based on the chemical equation below.  2 C2H6 (g)  +  7 O2(g) →  4…

A: A chemical equation is given as follows:In the above reaction, 2 moles of C2H6 react with 7 moles of…

Q: and (II) chloride. are formed when aluminum reacts with cobalt If no reaction occurs, type NR in…

A: Since aluminium is more reactive than cobalt so it displaces cobalt from its salt because more…

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.