if a box of cereal contains 990 mg of potassium, how many moles of K are present in the box?

Q: How many grams of potassium chloride are produced by decomposing 118 grams of potassium chlorate ?

A: In Decomposition of potassium chlorate 2 moles of potassium chlorate produced 2 moles of potassium…

Q: How many grams does 5.32 moles of aluminum carbonate weigh

A:

Q: 9. Given the unbalanced equation CO2 + H2 ¡ CH4 + H2O (a) How many moles of water can be produced…

A: Balancing the unbalanced reaction  CO2 + H2  ----> CH4 + H2O we have 2 O in LHS and 1 in RHS so…

Q: How many grams CO2 do you produce when you consume 1 can soda? Given the equation: C6H12O6 + 6O2…

A: Given,Mass of sucrose in 1 can soda is 40 grams.First calculated moles of sucrose as follows,

Q: Convert 28.1g of ammonium carbonate into moles of ammonium carbonate.(NH4)2(CO3) choose the correct…

A: Number of moles can be calculated as: Moles = Given mass/molar mass

Q: A cereal contains 11.0 grams of sucrose (C12H220,1) per 60.0 grams of cereal many grams of cereal…

A: With datas  It is solved using dimensional analysis and mass of cereal is calculated as follows

Q: Given the reaction Fe + Cl=FeCl3 if 5.00 moles each of Fe and Cl2 reacts, how many grams of FeCl3…

A:

Q: How many moles of N2O4 are in 76.3g N2O4

A: Given: mass of N2O4 = 76.3 g molar mass of N2O4 = 92 g/mol we need to find out the moles of N2O4 ?

Q: Given the unbalanced chemical equation, CH3OH(l) + O2(g) → CO2(g) + H2O(g), what is the mole ratio…

A: The reaction given is, => CH3OH (l) + O2 (g) -------> CO2 (g) + H2O (g)

Q: 3.Given the balanced equation below, determine how many grams of KOH would be produced if 11.7 g of…

A: Given,  Balanced chemical equation : 2 K + H2O -----> 2 KOH + H2 mass of potassium = 11.7 g Mass…

Q: A halothane- oxygen mixture (C2HBrCIF3 + O2) can be used as an anesthetic. Assume that a tank…

A: Given data,P(halothane)=170 torrP(Oxygen)=570torrMass of O2=160g

Q: A sunscreen preparation contains 2.50% by mass benzyl salicylate (2.50g benzyl salicylate/100g…

A: Given : weight of benzyl salicylate = 2.50 g in 100 g sunscreen  And one tube contains 4 ounces of…

Q: 2 Fe2O3  + C → Fe +  3 CO2 How many moles of Fe is formed when 5.63 x 1024 atoms of C

A: Given, Chemical Reaction::  2 Fe2O3 + C → Fe + 3 CO2 Moles of C : 5.63 x 1024 atoms  Moles of Fe : ?

Q: How many moles of magnesium chloride (MgCl2) are present in 27.13g of magnesium chloride?

A: Given data,Mass of MgCl2=27.13gMolar mass of MgCl2=95.211g/mol

Q: How many grams will you need to prepare a bath containing 4.40 molesof Epsom salts?

A: ** Mg(SO4) prepared synthetically are called as Epsom salts . ** It has the general formula…

Q: Iron(II)sulfate, FeSO4 is presented for the treatment of anemia. A. How many moles of iron (II)…

A: The solution is as follows :

Q: According to the following reaction, how many grams of oxygen gas are required for the complete…

A: To solve this problem we will first write the balanced chemical equation then according to this…

Q: How many GRAMS of carbon are present in 4.07 moles of carbon tetrachloride, CCl4?  grams  How many…

A: Molar mass of C= 12 g/mol Molar mass of CCl4 = 153.82 g/mol Number of moles = mass ÷ molar mass

Q: A cereal contains 11.0 grams of sucrose (Cı:H2:O11) per 60.0 grams of cereal How many grams of…

A: Given :-  Mass of sucrose present in 60 g cereal = 11.0 g  To calculate :- amount of cereal that…

Q: how many g of Fe2O3 will you obtain from reacting 14.4 g FeS2 and 13.0 g of O2? When rounding…

A:

Q: Al + FeCl3 → Fe + AlCl3 3.6 grams of aluminum are put in a container with 9.8 grams of FeCl3. How…

A: The question is based on the concept of Reaction Stoichiometry.   We have to identify the limiting…

Q: C5H12(l) + 8 O2 (g) --> 6 H2O (g) + 5 CO2 (g) How many moles of CO2 will be produced by 53.9…

A: Given the balanced chemical reaction: C5H12(l) + 8 O2 (g) →6 H2O (g) + 5 CO2 (g). The molar mass of…

Q: How many moles of glucose, C,H1206, can be "burned" biologically when 10.0 mol of oxygen is…

A: The given data : The number of moles of Oxygen = 10 To determine = The number of moles of glucose…

Q: Use the following UNBALANCED equation:____ N2 + ____ F2 -->____ NF3. How many moles of nitrogen…

A: The balanced equation is N2 + 3F2 -----> 2NF3

Q: How Many grams of H2O are equivalent to 0.4 mole of H2O ?

A:

Q: Iron reacts with oxygen to form iron (III) oxide: ___Fe + ___O2 ----------> ___Fe2O3   A reaction…

A: Given: Number of moles of Fe2O3 produced =  2.07 moles

Q: Mg(s) + 3 N2 (g) --> 2 MgN3 (s) How many grams of N2 will be used to produce 85.5 moles of MgN3?

A: We have given that   The balance chemical equation :    2Mg(s) +  3N2(g) -------> 2MgN3(s)

Q: How many moles of atoms are contained in the following? (a) 25.0 g NaOH                  (b) 44.0…

A: Mass of NaOH = 25.0 grams Molar mass of NaOH = Atomic Mass of Na + Atomic Mass of O + Atomic Mass of…

Q: Mg + Cl2 --> MgCl2  If 5.00g of magnesium is combined with 10.0g of chlorine. Calculate the…

A: Determine limiting reagent:

Q: Aspirin (C9H8O4) is a medication used to reduce pain, fever, or inflammation. Find out the mass of…

A: 1 mole = 6.022×1023 ( Avogadro's number ) The mass of one mole of atoms is called atomic mass  For…

Q: Given the reaction:2mg+O2=2Mgo a. What is the greatest amount og MgO (in moles) that can be made…

A: Given: The reaction, 2Mg+O2→2MgO Moles of Mg=6.9 Moles of O2=3.8

Q: 10. If the student used 1.056 g NaOH, how many moles of NaOH were present?

A: Mass of NaOH = 1.056 g  Moles of NaOH = ?

Q: 2. A balanced chemical reaction and corresponding reaction map are shown below. Where do the numbers…

A: Explanation to the correct answer is given below.

Q: How many grams of ammonia are formed when 25.0 grams of magnesium nitride and 50.0 grams of water…

A: This is two reactant equation do will be use concept of limiting reagent  Limiting…

Q: The max dose of sodium hydrogen phosphate (Na2HPO4)that should be taken in a day is 3.8 grams. How…

A: MOLE: The unit of mole is 'mol'. It is defined as the estimation of the amount of substance of any…

Q: How many moles of chloride are present in a beaker containing 4.50 g of magnesium chloride?

A:

Q: 3.Given the balanced equation below, determine how many grams of KOH would be produced if 11.7 g of…

A:

Q: If a test tube has 2 moles of a blue liquid and a different test tube has 2 moles of a red solid…

A: Given: Moles of blue liquid in test tube 1 = 2 mol. And moles of red solid in test tube 2 = 2 mol.

Q: How many moles of Ag are in 34.5 grams of Ag₂O?

A: Moles is unit of measurement of amount of substance. It can be expressed as,

Q: 1) Given 6.00 x 102 mg of diphosphorous pentoxide: a)A How many millimoles (mmoles) are there?…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: If 5.85 moles of CaCO3 are used in an experiment, how many moles of carbon dioxide are create CaCO3…

A: Calcium carbonate decomposes into carbon dioxide and calcium oxide. The balanced reaction is -…

Q: MgO are produced when 35.0 grams of O2 react completely with Mg?

A: The reaction is: Molecular weight of 2Mg = 24.3g/mol. Molecular weight of oxygen = 32g/mol.…

Q: How many moles of chlorine gas would be required to produce 6.5 moles of sodium chloride?

A: Given :-  2 Na(s) + Cl2(g) -----> 2 NaCl(s)    Number of moles of NaCl produced = 6.5 mol  To…

Q: How many moles of potassium nitrate are there in 50.0 g of potassium nitrate?

A: Given data contains, Mass of potassium nitrate is 50.0 g. The formula to calculate the moles of a…

Q: 6. So, what is the difference between a subscript and a coefficient? 7. Which of the following…

A: Let's see answer of given two questions,

Q: How many g of La2De3 are contained in 54.2 atoms of La2De3

A: The number of key constituents present in the sample can be furnished by the mole concept. One mole…

Q: C3Hg(g) + 502(g) 4H20(g) + 3CO2(g) If 211 g of propane (C3H8) is burned, find the mass of carbon…

A:

Q: Answer the given questions. Write down your answer clearly. 2. Which is the industrial preparation…

A: The number of moles of reactants will be calculated using the unitary method as shown in the…

Q: Butane has a molecular weight of 58.1 grams in one mole.  How many carbon atoms are in 3.00 gg of…

A: Butane is a hydrocarbon made of four compounds and is represented as C4H10

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.