Related Questions

Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?
A 6.09%
B 10%
C 10.75%
D 21.5%
100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?
A 70 kg
B 36 kg
C 44 kg
D 56 kg
Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?
A 600
B 800
C 300
D 250
E None of these
Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called __________ solutions.
A Ideal
B Real
C Isotonic
D None of these
A 25 ml sample was diluted to 250ml with odourless distilled water so that the odour of the sample no longer perceivable. What was the Threshold odour number?
A 11
B 10
C 25
D 05
মানবদেহের রক্তে কোন বাফার দ্রবণ (buffer solution ) থাকে?
A NaHCO3 and H2CO3
B NH4C1 and NH4OH
C CH3COONa and CH3COOH
D Na2HPO4 and H3PO4
নিচের কোনটি বাফার দ্রবন নয়? (Which of the following is not a buffer solution?)
A NH4Cl+NH4OH
B CH3COONa+CH3COOH
C NaOH + HCl
D HCOONa + HCOOH
CH3COOH/CH3COONa  বাফার দ্রবণের pH=  pKa  হওয়ার শর্ত কী?   (What is the condition for pH=pKa of CH3COOH/CH3COONa buffer solution?)
A [CH3COOH] > [CH3COO-]
B CH3COOH =CH3COO-
C CH3COOH  CH3COO-
D CH3COOH ≠ CH3COO-
A shopkeeper combined X liters of a solution containing 10% of certain material Q, with 10 liters of another solution that contained 2% of that materiale Q, to produce Z liters of a solution that had 5% of Q. What is the value of X?
A 5 liters
B 6 liters
C 7 liters
D 8 liters
Solution Y is 40 percent sugar by volume and solution X is 20 percent sugar by volume. how many gallons of solution that is 25 percent sugar by volume/
A 75
B 150
C 240
D 450

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