at mass of ca

Q: In a 0.55M aqueous solution of propionic acid (C,H,CO,H), what is the percentage of propionic acid…

A: Given data,Molarity of C2H5COOH=0.55Ka of C2H5COOH= 1.34×10-5

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A: The formula to calculate the Concentration in g/mL is : Concentration = Mass of Solute ÷ Volume of…

Q: i www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNšlkr/J8P3]H-IBCH O Sample Source An. O New Tab G What…

A: Given q = 52.2 kJ              = 52200 J         ( 1kJ = 1000 J) m = 5.70 Kg                =…

Q: O THERMOCHEMISTRY Understanding the definitions of heat and work A mixture of gaseous reactants is…

A:

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A:

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A:

Q: O CHEMICAL REACTIONS Writing the net equation for a sequence of reactions Manganese commonly occurs…

A: To write the net chemical equation of the given two steps involved, we have to identify the common…

Q: Calculate the mass of vanadium(V) oxide (V,0,) that contains a billion (1.00 × 10°) oxygen atoms. Be…

A: Given data : no. of Oxygen atoms = 10^9 atoms to find = the mass of V2O5 in given oxygen atoms now,…

Q: the moles

A:

Q: An aluminum atom has a mass of 4.48 × 10 g and a small airplane has a mass of 5000. kg. Use this…

A: Given, Mass of 1 atom of aluminium = 4.48 × 10-23 g Mass of small airplane = 5000 kg = 5.0 × 106 g…

Q: O THERMOCHEMISTRY Understanding the definition of enthalpy Measurements show that the enthalpy of a…

A: Equation for change in enthalpy (ΔH) is given by,  ΔH = ΔE + PΔV      ------ ( 1 )   ΔE = Change in…

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A:

Q: Examine the reaction mechanism found below: Net: H₂(g) + ICI(g) →→ HCHI(g) + H(g) H(g) + ICl(g) →→…

A: The overall equation is achieved by adding all the steps of the mechanism of the reaction.Rate law…

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 2.3 x 10 umol of iron(II)…

A: Change micro mol to mili mol the volume in L. then divide it.

Q: Calculate the energy required to heat 1.70 kg of ammonia from 60.2 °C to 66.4 °C. Assume the…

A:

Q: A reaction at 25.0 °C evolves 467. mmol of sulfur hexafluoride gas. Calculate the volume of sulfur…

A: Assuming the ideal behavior of sulfur hexafluoride, the volume of the gas can be calculated by using…

Q: 3 For the reaction below, initially 3.5 mol of NH¸ are placed in a 4.0 L reaction chamber. After 3.0…

A: The average rate of reaction can be described as the change in concentration of reactants or…

Q: E MEASUREMENT Counting significant digits when measurements are multiplied o... Multiply or divide…

A: -> In addition and subtraction answer contains least number of decimal places.-> In…

Q: Suppose 0.433 g of zinc chloride is dissolved in 150. mL of a 19.0 m Maqueous solution of potassium…

A: Given, The mass of zinc chloride = 0.433 g. Volume of potassium carbonate = 150. mL Molarity of…

Q: A student performs the reaction below in three experiments studying initial concentrations and…

A:

Q: ||| O STOICHIOMETRY Using molarity to find solute mass and solution volume Calculate the volume in…

A: Details

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Mole ratio indicates the proportion of different atoms present in one compound and it is used to…

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: given :- mass of HBr = 4.9 g               mass of NaOH = 1.3 g  To calculate :- theoretical yield…

Q: An arctic weather balloon is filled with 16.0 L of helium gas inside a prep shed. The temperature…

A: Applying ideal gas condition.

Q: The chemical formula for sodium bromide is NaBr. A chemist measured the amount of sodium bromide…

A: A question based on mole concept that is to be accomplished.

Q: Liquid octane (CH₂(CH₂), CH₂) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide…

A: Given that - Liquid octane (CH3(CH2 )6CH3) will react with gaseous oxygen (O2) to produce gaseous…

Q: A chemist adds 365.0 mL of a 0.46M copper(II) sulfate (CuSO4) solution to a reaction flask.…

A:

Q: Liquid hexane (CH₂(CH₂) CH₂) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide…

A:

Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

A: Given,  Chemical formula for methyl tert-butyl ether is CH3O(CH3)3  Moles of C in methyl tert-butyl…

Q: An aluminum atom has a mass of 4.48 x10 -23 g and a small airplane has a mass of 5000. kg. Use this…

A:

Q: O CHEMICAL REACTIONS Solving for a reactant using a chemical equation Green plants use light from…

A:

Q: O CHEMICAL REACTIONS Writing the net equation for a sequence of reactions Nitric acid is often…

A: Nitric acid prepared from atmospheric gases nitrogen, oxygen and hydrogen. preparation takes place…

Q: -23 g and a small airplane has a mass of 5000. kg. An aluminum atom has a mass of 4.48 x 10 Use this…

A: Given: Mass of aluminum atom = 4.48×10-23 g Mass of small airplane = 5000 kg

Q: O CHEMICAL REACTIONS Theoretical yield of chemical reactions Liquid octane (CH;(CH,) CH,) reacts…

A: Balanced reaction is as :-  2C8H18(l) + 25 O2(g) ---> 16CO2(g) + 18H2O(g)

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg;(Si,Og),(OH), An…

A:

Q: Solving moles-to-moles limiting reactant problems Solid aluminum (Al)and chlorine (Cl,) gas react to…

A:

Q: A chemistry student weighs out 0.235 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: Sodium hydroxide reacts with hydrochloric acid, to form sodium chloride and water. The equation for…

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.