Ask a Question

Calculate the percentage composition in terms of mass of solution obtained by mixing `300 g` of a `25%` and `400 g` of a `40%` solution by mass.

in Education by
Calculate the percentage composition in terms of mass of solution obtained by mixing 300g of a 25% and 400g of a 40% solution by mass. Select the correct answer from above options

1 Answer

0 votes
by
Correct Answer - 31.9% Mass of 25%solA= 25 100 ×300=75g mass of 40%solB 40 100 ×400=160g % composition of A = 75×100 75+160 = 75×100 235 =31.9% % composition of B=100-31.9=68.1%

Related questions

0 votes
Q: Define the following terms `:` `a.` Mole fraction `b.` Molality `c.` Molarity `d. Mass percentage.
    Define the following terms : a. Mole fraction b. Molality c. Molarity `d. Mass percentage. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Calculate the mass percentage of benzene `(C_(6)H_(6))` and carbon tetraCHMloride `( C Cl_(4))` if `22g` of benzene is dissoved in `122g` of carbon te
    Calculate the mass percentage of benzene (C6H6) and carbon tetraCHMloride (CCl4) if 22g of benzene is ... carbon tetraCHMloride. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Calculate the mass percentage of aspirin `(C_(9)H_(8)O_(4))` in acetonitrile `(CHM_(3)CN)` when `6.5g` of `C_(9)H_(8)O_(4)` is dissolved in `450g` of
    Calculate the mass percentage of aspirin (C9H8O4) in acetonitrile (CHM3CN) when 6.5g of C9H8O4 is dissolved in 450g of CHM3CN . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: At `300 K`, `36 g` of glucose present per litre in its solution has an osmotic pressure of `4.98 bar`. If the osmotic pressure of the solution is `1.5
    At 300K , 36g of glucose present per litre in its solution has an osmotic pressure of 4.98 ¯ . If the ... would be its concentration? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Calculate the mole fraction of benzene in solution containing `30%` by mass in carbon tetrachloride.
    Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving `1.0g` of polymer of molar mass `185,000` in `450mL` of water a
    Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving 1.0g of polymer of molar mass 185 ... at 37∘C . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: A `5%` solution (by mass) of cane sugar in water has freezing point of 271 K. Calculate the freezing point of a 5% glucose (by mass) in water. The fre
    A 5% solution (by mass) of cane sugar in water has freezing point of 271 K. Calculate the freezing point of a 5% ... water is 273.15 K. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Calculate the `(a)` molality, `(b)` molartiy, and `(c)` mole fraction of `KI` if the density of `20% (` mass `//` mass `)` aqueous `KI` is `1.202 g m
    Calculate the (a) molality, (b) molartiy, and (c) mole fraction of KI if the density of 20%( mass / mass ) aqueous KI is 1.202gmL-1 . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Calculate the mass of a non-volatile solute ( molecular mass `40`) which should be dissolved in `114 g` octane to reduce its vapour pressure to `80%`.
    Calculate the mass of a non-volatile solute ( molecular mass 40 ) which should be dissolved in 114g octane to ... pressure to 80% . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: The vapour pressure of water is `12.3 kPa` at `300 K`. Calculate vapour pressure of `1` molal solution of a solute in it.
    The vapour pressure of water is 12.3kPa at 300K . Calculate vapour pressure of 1 molal solution of a solute in it. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Calculate the mass of urea `(NH_(2)CONH_(2))` required in making `2.5 kg `of `0.25 `molal aqueous solution.
    Calculate the mass of urea (NH2CONH2) required in making 2.5kg of 0.25 molal aqueous solution. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: An antifreeze solution is prepared from `222.6 g` of ethylene glycol `[C_(2)H_(4)(OH)_(2)]` and `200 g` of water. Calculate the molality of the soluti
    An antifreeze solution is prepared from 222.6g of ethylene glycol [C2H4(OH)2] and 200g of water. Calculate the ... of the solution? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: In a class, 40% students study mathematics; 25% study biology and 15% study both mathematics and biology. One student is selected at random.
    In a class, 40% students study mathematics; 25% study biology and 15% study both mathematics and biology. One ... studies mathematics. Select the correct answer from above options...
asked Nov 16, 2021 in Education by JackTerrance
0 votes
Q: Clearly state, what do you understand by the terms `:` mass number, nucleaons and nuclides?
    Clearly state, what do you understand by the terms : : mass number, nucleaons and nuclides? Select the correct answer from above options...
asked Jan 2, 2022 in Education by JackTerrance
0 votes
Q: Concentrated nitric acid used in the laboratory work is `68%` nitric acid by mass in aqueous solution. What should be the molaritiy of such a sample o
    Concentrated nitric acid used in the laboratory work is 68% nitric acid by mass in aqueous solution. What should be ... 1.504gmL-1 ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance

© Copyright 2018-2023 www.Blogmepost.com. All rights reserved. Developed by Blogmepost.

...