Very large numbers should be entered in exponential notation. Any numbers obtained from the periodic table should be rounded to the nearest  0.5 or a whole number. Write the correct chemical formula for the following compounds Calculate the molar mass radium permanganate  Ra(MnO4)2Incorrect    Correct  g/mole strontium chromate  SrCrO4Incorrect    Incorrect  g/mole   cadmium sulfate  CdSO4Incorrect    Incorrect  g/mole  aluminum phosphide    Correct  g/mole  magnesium iodide    Correct  g/mole

Q: The atomic molar mass of some elements, as shown in the periodic table, is as follows. Atomic molar…

A: moles of calcium = 3.00 molAtomic molar mass of calcium = 40.08 g/molmass of calcium = ?

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: The objective of the question is to balance the given chemical equation. Balancing a chemical…

Q: For the following chemical reaction, write 6 different mole to mole ratios. Fe2O3 (s) + 6 HCl (g)…

A: Mole to mole ratios can observe by chemical reaction  Fe2O3:HCl=1:6 Fe2O3:FeCl3=1:2 Fe2O3:H2O=1:3

Q: laboratory. Initial Mass and Yield   Sulfuric Acid Aluminum Hydroxide Initial Amount of Reactant…

A:

Q: If 0. 274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given- Moles of substance =0.274 moles  Weight of substance= 62.5 g

Q: Convert 0.19 moles of carbon dioxide to grams of CO2.

A: Answer: This is question based on mole concept where each mole of the substance has a fixed mass…

Q: Directions: Determine the mole ratio of the following reactants and products. For items 1 and 2:…

A: Mole ratio is the ratio of coefficients which is present in the reaction. Check the coefficient in…

Q: Determine the molar mass of the hydrate CaCl2⋅2H2O.CaCl2⋅2H2O. molar mass:   g/mol

A:

Q: indicate that the coefficients indicate the number of moles that combine and are formed in the…

A: Given, that the coefficients indicate the number of moles that combine and are formed in the…

Q: Use the balanced equation for the combustion of ethane to complete the table.    2C2H6(g)  +…

A: Since the balanced reaction given is  2C2H6(g)  +  7O2(g) → 4CO2(g)  +  6H2O(g) Hence we can say 2…

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A: Balanced equation is equation in which number of atoms are equal in both reactant and product side.

Q: Carbon dioxide can be created by burning carbon in oxygen: C + O2 → CO₂2 Approximately how many…

A: Given reaction, C + O2 → CO2

Q: Write the balanced chemical equation for the reaction shown. = NO = 0₂ = NO₂

A: To write a balanced equation  their must have equal number of  atoms of different elements in the…

Q: Magnesium reacts with HCl according to the balanced equation: Mg (s) + 2 HCl (aq) --> MgCl2 (aq) +…

A: Magnesium reacts with HCl to produce magnesium chloride and hydrogen gas. The equation for the…

Q: How many hydrogen atoms are in 5.0 g of citric acid (CóHgO7)?

A: Please have a look into the solution:

Q: What is the percent yield of water when you have 3.8 g H₂O produced from the reaction of 9.0 g CH3OH…

A: The mass of water that produced= 3.8 gThe mass of methanol reacts = 9.0 gThe mass of oxygen reacted…

Q: Consider the following balanced equation. 3 Ag(s) + 4 HNO3(aq) → 3 AgNO3(aq) + NO(g) + 2 H2O(l)…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Averages using the table* average of NaOH used In liters  average moles of NaOH used (mol)…

A: The volume of NaOH used in trial 1, trial 2, and trial 3 is 47.98 mL, 47.12 mL, and 47.12 mL,…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Given -> Br2(l) + I2(s) ----> IBr3(g)

Q: Use the balanced equation, 4K + O₂ 2 K₂O, to answer the following question. How many grams of K are…

A: mass of O2 = 19.1 gmolar mass of O2 = 32.00 g/molAtomic mass of K = 39.10 g/mol

Q: How many moles are in 5.78 x 1023 molecules CO,?

A: Given :- number of molecules of CO2 = 5.78 × 1023 molecules  To calculate : number of moles of CO2…

Q: Calculate the molar mass for the following fictitious hydrate. Report your answer with one place…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur охудen chlorine…

A: a)     Reactant which have most initial moles = H2

Q: Determine the limiting reactant and the mass of product for the following reaction with the given…

A: Given data : Mass of Na = 75 gms              Its molar mass = 23 g/mol Mass of Cl2 = 25 gms…

Q: How many moles of sucrose are in 5.25 x 10^29 sucrose molecules

A:

Q: Determine the mass in grams of HNO3 formed when it react to form 15.5 g HNO3. 3NO2 + H202HNO; + NO…

A:

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: We have to balance the given reaction

Q: Determine the mass in grams of HNO3 formed when it react to form 15.5 g HNO3. 3NO2 + H20 ®2HNO; + NO…

A:

Q: According to the following reaction, how many moles of sodium chloride will be formed upon the…

A:

Q: Consider the following reaction.   2Fe2O3(s)+3C(s)−→−heat4Fe(s)+3CO2(g) Calculate the number of…

A: From balanced reaction two mole of iron oxide react with three mole of carbon

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Given  N2(g)  + H2(g)   →  NH3(g) Balance chemical equation = ?

Q: Balance the following equations using the smallest possible whole number stoichiometric…

A:

Q: consider the following balanced equation. N2O4(l) + 2 N2H4(l)  →  3 N2(g) + 4 H2O(g) Determine the…

A: Given, N2O4(l) + 2 N2H4(l)  →  3 N2(g) + 4 H2O(g) Given, mass of N2O4 react = 60.0 g mass of N2H4…

Q: According to the following reaction, how many moles of oxygen gas are necessary to form 0.944 moles…

A:

Q: In the following chemical equation, which element should be balanced last? H2SO4 +HI→ H2S+I2 + H₂O

A: A chemical reaction follows the law of conservation of mass. According to the law of conservation of…

Q: Use this chemical equation to answer the question below: 2K + Br2 2 KBr Which of the following would…

A:

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is  9.072 x 10^2  8.200 x 10^-1…

A: Correct: 2.  8.200 x 10-1 Given that,  Weight of C2H6O given = 37.80 g Molar mass of C2H6O = 46.1…

Q: Some chemical reactants are listed in the table below. Complete the table by filling in the…

A: Oxidation number represents the number of electrons lost or gain by the atom to get stable…

Q: Which one of the following is not equivalent to one mol of the substance? O 8.0 g He O 6.02 x 1023 C…

A: The correct option is:

Q: calculate the masses of both reactants and products assuming a 100% reaction. Na3PO3 +…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: How many moles of sodium must react completely to produce 0.175 moles of sodium nitride in the…

A: It is given that in the balanced reaction 6 moles of sodium (Na) is reacting with 1 mole of nitrogen…

Q: When it is properly balanced, what are the coefficients of the following chemical equation? Al + HCI…

A: Any chemical reaction is said to be balanced if no of each atom on reactant and product side is…

Q: What mass of CO2 is produced when 100.0 g of Fe is produced?   118.2 g…

A: 1)  Mass of CO2 produced =  118.2 g2) Mass of Fe produced =  69.94gExplanation:The balanced reaction…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: Given :

Q: Combustion of 8.45 mg of an unknown substance yields 14.0 mg CO2 and 7.08 mg H20. The unknown…

A: We have to calculate the % of each element in substance.

Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2A1(s) +…

A: Answer

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".