uestion 20 A 0.465 g sample of an unknow atm. What is the molar mas O 33.9 g/mol O 81.8 g/m 21

Q: f 41.4 mL of  Na3PO4 solution with a concentration of 7.4 M were diluted to 2.4 L determine the…

A: Given data:Concentration M1 = 7.4 M Volume V1 = 41.4 mL Volume V2 = 2.4 L Concentration M2 = ?

Q: If 80.0 g of potassium sulfate is dissolved in 3.20 × 102 g of water, what is the percentage…

A: % Composition = (wt of solute /wt of solution ) x 100

Q: When 10 grams of alcohol is added to 40 grams of water, the percent solution will b O 20 % O 15% O…

A: Given that: Mass of water, MB = 40 gMass of alcohol, MA = 10 g To find: Percent solution when 10 g…

Q: 11. 3.5 L of water containing 0.61 moles of NaOH would have a molarity of- 0.17 M 5.7 M a. 4.1 M 2.1…

A: Given,  Number of moles of NaOH = 0.61 mole  Volume of solution in L = 3.5 L  Calculate the molarity…

Q: Calculate the number of moles of HCI present in 50.00 cm3 of 2.00 mol / dm3 *.HCI 0.2 mol O 0.1 mol…

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

Q: O How many grams of sodium chloride required to prepare loo ppm Sodium in 250 ml of solution ? Ans.8…

A: Solution In order to work out what proportion common salt should be dissolved in one L of water,…

Q: C. 100. mL of ethanol (C2H5OH) in 500. mL of solution (The density of ethanol is 0. 6. How many…

A: One of the Concentration measured i methods is Molarity  method  Molarity=moles/liter M=weight…

Q: calculate the number of moles of H2 SO4 in one liter ie the molarity

A:

Q: How many grams of Na2 So4 are required to make 0.350L of 0.500M Na So4?

A: Molarity of Na2SO4 = 0.500 M Volume of Na2SO4 = 0.350 L

Q: A solution is prepared by mixing 1.28 mol C7H16, 2.92 mol C8H18, and 2.64 mol C9H20. What is the…

A: We know that  % Mole of substance ={ (mole of a substance)/(total mole of solution )}× 100

Q: Number of moles of NaNO3 in 500 mL of 0.5 N NaNO3 solution is. . O 0.025 mole O 0.25 mole O 0.75…

A: Normality is calculated as the number of gram equivalents divided by the volume of the solution in…

Q: How many moles of solute should be dissolved into 3.0 L of solvent to make a concentration of 2.0 M?…

A: According to Question  given data volume= 3.00 L concentration=2.0 M =2.0 mol/L

Q: H2SO4 is the most widely used industrial chemical on Earth and will be required at least to some…

A: Given;

Q: If 121 grams of calcium chloride (CaO ere added to water to make 2 L of

A: Molarity is defined as number of moles of solute dissolved per liter.

Q: What is the molarity of 40 g NaOH in a 2.0 L solution? Molarity = _________ M

A: Given: Mass of NaOH=40 g The volume of the solution=2.0 L The molar mass of NaOH=40 g/mol Molarity…

Q: Define the following terms: (DO NOT COPY ON GOOGLE!) A. Solution B. Solute C. Solvent

A: Given, Define the following = ?  A. Solution B. Solute C. Solvent

Q: volume of 0.250 mol/L solution that can be made from 31.0 g of C2H2O4 • 2H2O(s)

A:

Q: From the formula of the following hydrates calculate the percent H 2 O in each Possible unknowns…

A: % of H2O (Hydrates) in compound = Mass of water Total nass of compoundx100%(a) BaCl2.2H2OAtomic mass…

Q: what the mdsality of the following Solution O 2.8980f Naci dissolued in o.ISqLofwate (density of…

A:

Q: Calculate the molarity of each of these solutions. a.) A 5.623-g sample of NaHCO3 is dissolved in…

A: a) Molarity = moles of solute / volume of solution in L Assuming that the volume of solute i..e…

Q: In 1.50 L of 1.22 mol/L silver nitrate solution, there is 311 g of silver nitrate. Select one: O…

A: Given information, Volume = 1.50 L Concentration = 1.22 mol/L

Q: When 75.0 mLof a solution containing 1.25M CaCl, is diluted to 100.0 mL, how many moles of CaCI2 are…

A: On dilution, the number of moles of solute (CaCl2) remains the same. The dilution affects the…

Q: Сос 1 L Concentration (mol/L) ½ L ow many moles is 130 g of COCI2? moles hat is the molarity of a…

A: 1) mass of CoCl2 = 130g Molar mass of CoCl2 = 129.839 g/mol

Q: 3.5 L of water containing 0.61 moles of NaOH would have a molarity of

A:

Q: How many moles of NaOH are present in 13.0 mL of 0.200 M NaOH?   moles:?

A:

Q: d) Calcium ions (Ca) are present at relatively low concentrations (~100nM) within the cytoplasm of…

A: The concentration of calcium ions in the cytoplasm is = 100 nM The number of calcium ions (molecule)…

Q: How many moles comes out after dissovling 0.63 sodium nitrite in 5 mL of water? Molar weight of…

A:

Q: What is the percent by mass of water in a 1.41 m XY(aq) solution? The molar mass of XY is 70.5…

A:

Q: 4. Calculate the molarity of NażS2O3 if 41.22 ml is equivalent to 37.84 ml l2 solution, 35.62 ml of…

A:

Q: What is the molarity of 2.3 mol of NaOH in 23.0 L solution? Molarity = ______ M

A: Given: moles of NaOH = 2.3 moles volume = 23.0 L we need to find the Molarity of the solution ?

Q: A. Preparation of Solution from Solid Solute Calculated weight needed to Solid Required Required…

A: Given: Na2CO3 Required volume = 0.1 L  Required concentration  = 1 M  To find : Formula weight…

Q: If 6 g of NaCl is dissolved in 1 L of solution, what percent concentration is prepared? _________%

A: The formula for calculating percent concentration is

Q: How many moles of MgCl, present in 64.0 mL of 0.165 M MgCl, solution? are mol

A: M (molarity) is the no of moles of solute present in 1000 ml solution.

Q: Calculate the mass percent of the following solutions: (a) 28.1 g KCl + 113.4 g H2O (b) 7.03 g…

A:

Q: Mass percent KBr Molality KBr = mol KBr kg H,0

A:

Q: The concentration of Ca2+ in CaCl, solution is 42 mEg/L. What is a molar concentration (mmol/L, mM)…

A: Given:  The concentration of Ca2+ is 42 mEq/L.

Q: the mole fraction of NaCN (Molar mass 49.0 mol) in an aqueous solution is 0.0175, what is the ight…

A:

Q: Calculate the molarity of a solution prepared by dissolving 22.73 grams of NaC2H3O2 (OR "N" a C2 H3…

A: Given, mass of NaC2H3O2 = 22.73 g Volume of the solution = 0.858 L Molarity of the solution = ?…

Q: How many moles of solute should be dissolved into 3.0 L of solvent to make a concentration of 2.0 M?…

A: Molarity is given by the number of moles per litre of the solution.

Q: %3D What mass of NAOCOCH3 is needed to make 20.0 mL of a 1.00 M solution? Molarity (M) = moles /…

A:

Q: How many millilitres of 0.152 mol L HCIO, solution are needed to neutralize 50.00 ml of 0.0793 mol L…

A:

Q: How to calculate the concentration of carbonate anion  (CaCO3) in moles per liter if the…

A: Given,Concentration of CaCO3 = 42.54 g/LThat means there is 42.54 g of CaCO3 in 1 L of…

Q: 1. Classify each of the solutes as covalent or ionic (yes/no). COVALENT IONIC sucrose, C,H2201…

A: Sucrose C12H22O11 is not ionic because here is no metal atom ionic bond always making between metal…

Q: How many moles of KClO3 is in 375 mL of a 0.350 M KClO3 solution a.0.131 moles b.107 moles c.131…

A:

Q: how many Of water Que H2o arE PreSen t In 19.29 H2o? Ci8g/ mol)

A: The the question is based on the mole concept.  it involves calculation of number of molecules of…

Q: Calculate the molarity of a solution formed by adding 9.50 g NH4Cl to 18.3 g of water molarity:   m…

A: The term molarity is used to define the concentration of a substance in a solution. It is the number…

Q: saturate

A: KNO3 is a ionic solid and ionic solid easily dissolved in water due to strong interaction between…

Q: Calculate the volume in mL of a solution that contains 1.82 moles of KCl if the concentration of…

A:

Q: How many moles of NO3 are present in 50.0 mL of 0.100 M Ca(NO3)2? Select one: O # moles of NO3 =…

A:

Q: Consider a O.855 M solution of LICI (molar mass = 42.39 g/mol). How many moles of LICI are in 62.1…

A:

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".