Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

Compare mass of pure NaOH in each of the following aqueous solution 1. 50 gram of 40% (w/w) NaOH 2.50 ml of 50% (w/v) NaOH (density of solution = 1.2 g/ml) 
Asked by arushidabhade | 07 Jun, 2019, 06:12: PM
answered-by-expert Expert Answer
% w/w means ammount of solute present in 100 gram of solution.
%w/v means ammount of solute present in 100 ml of solution.
left parenthesis straight a right parenthesis space 50 space straight g space of space 40 percent sign space of space NaOH space space space space space space 40 percent sign space NaOH space space means space 40 space gram space NaOH space present space in space 100 space gram space of space solution space space space space space So space in space 50 space straight g space NaOH space will space be equals space 40 over 2 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 20 space gram left parenthesis straight b right parenthesis space 50 space ml space of space 50 percent sign space straight w backslash straight v space NaOH space space space space space space 50 space gram space present space in space 100 space ml space of space NaOH space space So space in space space 50 space ml space NaOH space will space be equals 50 over 2 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 25 space gram space space space space space space space space
Answered by Ravi | 09 Jun, 2019, 08:00: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Chemistry
what is mole
Asked by manikandanragul1 | 11 Apr, 2024, 09:02: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
the algebric sum of the mole fraction of solute and mole fraction of solvent is equal to
Asked by nikhithaguguloth14 | 29 Mar, 2024, 08:15: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Calculate no. of moles of molecules of water present in 27g.
Asked by sumedhasingh238 | 27 Mar, 2024, 11:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
calculate the number of molecule in a drop weighing 0.05g
Asked by avijotsingh946431 | 22 Feb, 2024, 05:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
two moles of water contains
Asked by gurmelsinghray | 21 Feb, 2024, 08:43: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
what is the basic difference between a mole and molar?
Asked by bablipanwar893 | 01 Jul, 2023, 12:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
if mass of 2 atoms of an element is 4×10^-23grams, then atomic mass of element will be: ( take: avagadro number =6×10^23
Asked by saijagdale9 | 19 Jun, 2023, 02:34: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
The maximum number of molecules is present in. (a) 15 L of H2 gas at STP (b) 5 L of N2 gas at STP. (c) 1.5 g of H2 gas (d) 5 g of O2 gas
Asked by kdimple765 | 17 Jul, 2022, 01:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
molarity
Asked by alfirozislam900 | 03 Jul, 2022, 01:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
mole
Asked by alfirozislam900 | 03 Jul, 2022, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×