Answers
i) Molar mass of NaCl = 22.99 + 35.45 = 58.44 g / mol
We know that, no. of moles = Mass / Molar mass
No. of moles of NaCl = 1.50 g / 58.44 g / mol = 0.02566 mol
[NaCl] calculated by using formula [NaCl ] = No. of moles of NaCl / volume of solution in L
[ NaCl ]= 0.02566 mol / 0.1000 L = 0.257 M
ANSWER : [ NaCl ] = 0.257 M
ii ) Molar Mass of K 2Cr 2O 7 = ( 2 
39.10 ) + ( 2 52.00 ) + ( 7 16.00 ) = 294.20 g/ mol
We know that, no. of moles = Mass / Molar mass
No.
Of moles of K2Cr2O7 = 1.50 g / 294.20 g/mol = 0.005098 mol
[ K2Cr2O7 ] = No. of moles of K2Cr2O7 / volume of solution in L
= 0.005098 mol / 0.1000 L
= 0.05098
= 0.0510 M
ANSWER : [ K2Cr2O7 ] = 0.0510 M
We were unable to transcribe this image
We were unable to transcribe this image
We were unable to transcribe this image
We were unable to transcribe this image
We were unable to transcribe this image
We were unable to transcribe this image
We were unable to transcribe this image
.
Similar Solved Questions
1 answer
L GH Vodafone 3G 3:59 PM Notes discuss the mechanisms that explain diabetic neuropathy oDone
l GH Vodafone 3G 3:59 PM Notes discuss the mechanisms that explain diabetic neuropathy oDone...
1 answer
Just the answer plz Clicker Question 5. Rank the following alcohols from strongest to weakest acids....
just the answer plz Clicker Question 5. Rank the following alcohols from strongest to weakest acids. 0 2 Hb 3 H d A. 1>2>3>4 B. 2>1>4>3 C. 34 1>2 D. 3>4>2>1 E. 4>3>1>2 double Check Clicker Question 9. What is the product of the following reaction? H...
1 answer
Valerie can read 30 pages of economics in an hour. She can also read 20 pages...
Valerie can read 30 pages of economics in an hour. She can also read 20 pages of philosophy in an hour. She spends 6 hours per day studying. Use the blue line (circle symbol) to draw Valerie's production possibilities frontier (PPF) for reading economics and philosophy. PPF 0 20 40 60 80 100 120...
1 answer
In a period when interest rates are expected to rise, _______ institutions will want a fixed-for-floating...
In a period when interest rates are expected to rise, _______ institutions will want a fixed-for-floating swap, and the fixed rate specified on interest rate swaps will be _______ under these conditions. A. many; lower B. many; higher C. few; lower D. few; higher...
1 answer
Consider the split between the UK and the European Union. Discuss the value and/or danger for...
Consider the split between the UK and the European Union. Discuss the value and/or danger for global companies trading with Europe and the UK. Does the possibility to do business with an entity like the European Union with its single currency and homogeneous regulations hold greater potential than t...
1 answer
Please explain your answers as best as you can. I want to be able to understand....
Please explain your answers as best as you can. I want to be able to understand. The first drawing below represents the transcription start site and upstream region of a eukaryotic gene. In addition, four deletion constructs are shown, where the unboxed area represents a deletion of upstream DNA. N...
1 answer
If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water
If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water....
1 answer
The straight L has gradient 3 and passes through the point A(-6,4)
the straight L has gradient 3 and passes through the point A(-6,4).a) find an equation for L in the form y=mx+cb) straight line R has the equation in the form of -7y+x+14=0. Given that R crosses the y-axis at the point B and intersects L at the point C, find the coordinates of B and C...
1 answer
How do you find the roots of #x^4-5x^2+4=0#?
How do you find the roots of #x^4-5x^2+4=0#?...
1 answer
Which sign or symptoms for a client on clozapine would most concern the nurse? • A....
Which sign or symptoms for a client on clozapine would most concern the nurse? • A. dry mouth • B. fatigue • C. heart rate of 120 • D. apathy...
1 answer
Long before he was considered the 'father of genetics', Gregor Mendel... A) Owned a farm and...
Long before he was considered the 'father of genetics', Gregor Mendel... A) Owned a farm and had a family B) was a scientist trained in math C) was a monk who lived in a monastery D) was a professor at a university its NOT A i know that for sure...
1 answer
Arrays: City temperatures The maximum daily temperatures (in "C) for Istanbul and Ankara during August 2019...
Arrays: City temperatures The maximum daily temperatures (in "C) for Istanbul and Ankara during August 2019 are given below. Ankara: [33 30 31 32 33 35 30 29 29 28 29 30 32 32 33 32 34 31 33 30 29 30 31 33 31 30 27 26 27 26 27] Istanbul: [35 32 32 31 34 30 29 32 34 35 36 35 34 32 33 33 34 35 35 ...
1 answer
A. Multiply the following numbers using signed by unsigned multiplication and write output On.m format (101111)...
a. Multiply the following numbers using signed by unsigned multiplication and write output On.m format (101111) signed Q3.3 x (111101) Unsigned Q2.4...
3 answers
An object is thrown vertically from a height of #2 m# at #7 m/s#. How long will it take for the object to hit the ground?
An object is thrown vertically from a height of #2 m# at #7 m/s#. How long will it take for the object to hit the ground?...
1 answer
During the month, services performed for customers on account amounted to $4,500 and collections from customers...
During the month, services performed for customers on account amounted to $4,500 and collections from customers in payment of their accounts totaled $3,000. At the end of the month, the Accounts Receivable account had a balance of $3,500. What was the Accounts Receivable balance at the beginning of ...