Calculate the mole fraction of 5.65g Calcium Chloride with molar mass of 111g/mole placed in 15.5g of H2O with molar mass of 18.0g/mole.

Md Ariful Islam

0 like 0 dislike
1 views
Share with your friends

1 Answers

Md Ariful Islam

Call

n(CaCl2) = (5.65 g)/(111 g/mol) = 0.051 mol

n(H2O) = (15.5 g)/(18 g/mol) = 0.861 mol

x(CaCl2) = 0.051/(0.051 + 0.861) = 0.0559 = 5.59%

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
What volume of 0.300 M calcium chloride contains 3.50g of calcium chloride

3.50g CaCl2 × (1mol CaCl2 /110.98g CaCl2)= 0.0315 molesMolarity = no. of moles / volume 0.300 = 0.0315 / volume Volume = 0.0315/0.300Volume = 0.105 L

1 Answers 1 views
Does 65 grams of calcium chloride stand for the mass number of calcium chloride

Molar mass of sodium chloride is 58.44 , therefore , 65 g is not the mass number of sodium chloride

1 Answers 1 views
A 55.33 g KNO3 with molar mass of 101 g/mole was placed in 141g of H2O. with molar mass of 18.0 g/mole. What is the percent by mass of solution?

32.4g of the solution

1 Answers 1 views
Calculate the percent by mass of a NaCl solution with molar mass of 58.44g/mole placed in 15.5g of H2O with molar mass of 18.0g/mole

percentage by mass =15.5/(18+58.44) x 100% = 20.27%

1 Answers 1 views
Calculate the volume (in mL) of 0.100 M CaCl2 needed to produce 1.00g of CaCO (s). There is an excess of Na2CO3 Molar mass of calcium carbonate= 100.09 g/mol volume of calcium chloride =

Through mole-mass relationship between CaCl2 and CaCO3,1mole of CaCl2 produces 100.09g of CaCO3Amount of CaCl2 produced 1g of CaCO3= (1×1/100.09) =0.01mole.gGetting volume; n=CV where; n=number of mole,C=concentration and V=volume in...

1 Answers 1 views
calculate the percent by mass of NaCl solution with molar mass of 58.44g/mole placed in 15.5g of H2O with molar mass of 18.0g/mole.

We will use 1 g as the value of NaCl mass.Total mass of the solution = 1 + 15.5 = 16.5 gThe percent by mass of a NaCl= 1/16.5 ×...

1 Answers 1 views
If 65g of Aluminum reacts with excess Chlorine, how many grams of Aluminum Chloride will form?

Mass of Aluminium Chloride =48.3g

1 Answers 1 views
calculate the pH of the solution that contains 4.25g NH3 and 3.65g HCl per 500cm3 of the solution. Kb of NH3=1.8*10^-5

n of NH3 = 4.25/17=0.25 mol n of HCL=3.65/36.5=0.1 mol 0.25 1-0.25 0.25 NH3 + HC l= NH4Cl we have 500 ml with 0.75 mol HCl and 0.25 mol of...

1 Answers 1 views
Calculate the molar mass of the following compounds. Show your work. Water, H2O carbon dioxide, CO2 sodium chloride, NaCl calcium hydroxide, Ca(OH)2 potassium permanganate, KMnO4

Solution:M - molar massAr - standard atomic weight1) Water, H2O:M(H2O) = 2×Ar(H) + Ar(O) = 2×1.00784 + 15.999 = 18.01468 = 18.015M(H2O) = 18.015 g/mol2) Carbon dioxide, CO2:M(CO2) = Ar(C)...

1 Answers 1 views
when 1 mole of potassium carbonate reacts with 2 mole HCI, 1 mole carbon dioxide and 1 mole water is formed. How many mole potassium chloride is produced?

K2CO3 + 2 HCl = 2 KCl + H2О + CO2According to the balanced equation, in the given conditions 2 moles of potassium chloride will be forned.

1 Answers 1 views
X