Reaction B: Sodium Carbonate and Hydrochloric Acid Experimental Data 51.368 g (a) Mass of evaporating dish + watch glass 51.677 g (b) Mass of evaporating dish + watch glass + sodium carbonate 0.309 g (c) Mass of sodium carbonate used 51.671 g (d) Mass of evaporating dish + watch glass + sodium chloride 0.303 g (e) Mass of sodium chloride collected (experimental yield)

Q: Determine the number of moles present in a 1000 g gold bar. Round off your answer to the nearest…

A: Mass of gold = 1000g We have to determine the no. of moles present in 1000g of gold bar.

Q: Determination  of the Amount of water, mass of crucible + dehydrated Sample is 16.2265g,  mass of…

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

Q: How many grams O in 283.0 g Fe(OH)3? Molar mass of Fe(OH)3 is 106.867 Hint: 1 mole Fe(OH), has 3 mol…

A: We know that, Number of moles = Given mass / Molar mass  Mass = Number of moles x Molar mass  Number…

Q: please help find the percent yield of the product given the data

A: Aldol reaction is a condensation reaction. The aldol reaction in between two different carbonyl…

Q: Can

A: We will use stoichiometry of the reaction to get the answer

Q: got stuck at the stoichiometry , converting from mg

A: Mass of Zn = 2400 mg × 1g/1000 mg  = 2.40 g Moles of Zn = mass /molar mass   = 2.40 /65.38  = 0.0367…

Q: Using a mass of 1.01 g baking soda you started with initially, calculate the mass (g) of solid…

A:

Q: Calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how…

A:

Q: How many grams O in 283.0 g Fe(OH)g? Molar mass of Fe(OH)g is 106.867 Hint: 1 mole Fe(OH)g has 3 mol…

A:

Q: 1. Determine the experimental mole-to-mole ratio of Na2CO3 to NaCl from reaction data. a) First,…

A: Note - Since you have asked multiple questions, we will only do the first question for you. To get…

Q: Magnesium at start is 0.33g   mass at end is 0.49 g    Determine the number of moles of magnesium…

A: The no of moles can be calculated by the following formula. no of moles=massmolar mass Molar mass of…

Q: APOLLO 13 LUNAR MISSION ere are three steps needed for these calculations: 1) Convert grams → moles…

A: The reaction is, NaOH + CO2 → Na2CO3 + H2O Given that: mass of NaOH = 3,000 g To find: mass of…

Q: Use the References to access important values if needed for this question. Enter the coefficients…

A:

Q: 10) Calculate the moles of magnesium ( Show your calculation

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: How many moles of NO, are in 9.1x1024 molecules of NO2? Round your answer to 1 decimal place. Your…

A: The number of molecules = 9.1 × 1024

Q: 1. Determine the experimental mole-to-mole ratio of NaHCO; to NaCl from reaction data. a) First,…

A: We have to find mol to mol rate of NaHCO3 and NaCl

Q: Determine AG° for 2 NO2(g) – N2O4(g) at 25°C. Substance AG† (kJ/mol) NO2 (g) 51.3 N2O4 (g) 97.8

A: Given data, ∆Gof for NO2(g)= 51.3 KJ/mol And ∆Gof for N2O4(g)=97.8 KJ/mol Given reaction is,…

Q: Calculate the molar mass of CaCl2 g/mol Round to the nearest hundredth place. Do not include units…

A: The question is based on the concept of calculation of molar mass. we have to calculate molar mass…

Q: 300 g of oxygen are allowed to develop metal oxide, which is a chemical combination of 100% of the…

A: A chemical reaction in which the number of atoms of each element on the reactant and on the product…

Q: -What are two possible reasons why percentage yield is different from 100%

A: There is a theoretical or the stochiometric yield. This yield is calculated using the reaction…

Q: e number of moles of solvent?

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: Given the equation 2 NH3 --> N2 + 3 H2, convert 5.46 mol N2 to moles of H2. Round to the nearest…

A:

Q: In one experiment, a student used 0.21 g of aluminum and excess hydrochloric acid. a. Calculate the…

A: Given that 0.21 g aluminium react with excess hydrochloric acid.

Q: B) How many grams of NaN, can be made from 140.05 grams of N,? Balanced Chemical Equation :2 Na + 3…

A:

Q: Determine the molar mass of nickel(II) sulfate hexahydrate

A: nickel(II) sulfate hexahydrate  Formula = NiSO4.6H2O  To calculate :- molar mass

Q: Grams to Grams: Remember these equations use mole to mole ratio: 4. How many grams of butane, C,H10,…

A:

Q: How many grams O in 115.6 g Fe(OH)g? Molar mass of Fe(OH)g is 106.867 Hint: 1 mole Fe(OH)g has 3 mol…

A: Given: Molar mass of Fe(OH)3 = 106.867  Mass of Fe(OH)3 = 115.6 g. And each mole of Fe(OH)3 has 3…

Q: 4NH3(g)+5O2(g)---->4NO(g)+6H2O What is the mole-mole factor (ratio) of O2 to H2O?

A:

Q: Calculate the moles of NaOH added (mol). Give answer with at least three significant figures. Take…

A: Number of mols of the substance  = Volume of  the substance in L × concentration in mol/L

Q: 1. Fill in the blanks with the most appropriate term: A are the tells the story of a chemical…

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

Q: For the molecular compound silicon dioxide, what would you multiply "grams of SiO2" by to get the…

A:

Q: The conversion factor used to convert between the moles of a substance and the number of particles…

A: 1 mole of substance contain 6.023 x1023 particle6.023 x 1023 is called as Avagadro's numberAs 1 mole…

Q: Calculate the mass (g) and moles of the alcohol sample.

A: 2.) Mass can be calculated using volume and Density .  Moles can be calculated using mass and molar…

Q: Calculate the number of CC atoms in 0.997 molmol of CC.

A: We know that the total number of atoms in 1mole of a substance is constant that is the avogadro's…

Q: B3b. MOLES OF SALT Set 1 Set 2 Half mass Set 1 Half mass Set 2 Salt moles (mol) 3 3 3 3 (Unrounded)…

A: Given that : We have to calculate the moles of the salt used for the given data :

Q: Using a mass of 0.63 g baking soda you started with initially, calculate the mass (g) of solid…

A:

Q: Enter the coefficients directly from the balanced chemical equation. Do not reduce to lowest terms.…

A:

Q: Mass (g) Moles Moles Mass (g) of A of A of B of B 1 mole Moles of B Molar mass of B Molar mass of A…

A:

Q: Moles are the fundamental unit of chemistry. Why are moles so important? Please comment on molecular…

A: The amount of any substance is measured in a unit known as a mole which is equal to 6.023 x 10^23…

Q: In the following equation, write a conversion factor (mole ratio) that can be used for converting…

A: Mole ratio is the fixed number in which reactants react to give products.  The molar ratio…

Q: Table 7.1(data) Mass of crucible and lid 33.059   Mass of crucible, lid, and hydrate sample before…

A: The answers for questions in table 7.2 are answered as shown below,

Q: Calculate the number of moles of the given values 150.0 g sulfur

A: It is given that mass of Sulfur is 150.0 g. Molar mass of Sulfur is 32.07 g/mol

Q: mass of sulfate - 0.2809 g mass of the sample - 0.4213 g Based on the mass of sulfate and mass of…

A:

Q: In the gaseous state chlorine exists as a diatomic molecule Cl2 (molar mass=70.9g/mol). Calculate…

A: Given that in In the gaseous state chlorine exists as a diatomic molecule Cl2 (molar mass=70.9g/mol)…

Q: Determine the correct mole ratios, yes, you will select more than one, for the following balanced…

A: Answer

Q: What is the gravimetric factor when the desired substance is Cr203 and the weighed substance is…

A: Molar mass of PbCrO4  =323.19g/mol Molar mass of Cr2O3  =151.99/mol

Q: onvert to moles the mass of uric acid that is 0.3066 that causes gout and arthritis.

A: Number of moles of a substance can be obtained by dividing the mass by molar mass.

Q: A 0.9801 g sample of an unknown hydrate was heated to drive off the water. The remaining anhydrous…

A: Since the loss in mass of the salt is due to the removal of water only  hence mass of water…

Q: If 0.2149 moles of a something weighs 69.75 g, what is the molar mass of it, in units of g/mol?…

A:

Q: must include the correct units.  The mass of a mole of iron is

A: The symbol of iron is Fe The atomic number of iron is 26

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".