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nurul
Questions (13)
Determine the [OH^-] of a solution that is 0.145 M in CO3^2-.
1 answer
1,468 views
it is given that y is directly proportional to xn. write down the value of n when (i) y m square is the area of a square length
10 answers
9,403 views
if x is directy proportinal to y cube and y=2 when x= 1, (a) find an equation connecting x and y. (b) find the value of x when y
2 answers
381 views
What mass of CH3COONa must be added to 50.0 mL of 0.50 M CH3COOH to make a solution of pH
6.0 ?
2 answers
548 views
Calculate the pH of a solution made by adding 75.0 g of CH3COONa to 750 mL of 0.64 M
CH3COOH. Ka for CH3COOH is 1.8 x 10-5.
1 answer
492 views
A person 150cm tall is walking away from a lamp post at the rate of 15 meter per minute. when the man is 2.5m from the lamp
1 answer
1,118 views
the average of the hemoglobin reading for a sample of 20 teachers was 16 gram per 100 milliliters, with a sample standard
1 answer
1,512 views
A game is played by drawing 4 card from an ordinary deck and replacing each card after it is drawn.find the probability that at
1 answer
3,939 views
A mixture of {\rm NaCl} and {\rm NaBr} has a mass of 2.10{\rm g} and is found to contain 0.71{\rm g} of {\rm Na} What is the
1 answer
474 views
A bank with a branch located in a commercial district of a city has developed an improved process for serving customers during
0 answers
1,383 views
Is the measured normal consistency lies in the range for the Portland cements?
0 answers
449 views
What happens to the physical properties as the strength of intermolecular forces increases?
1 answer
635 views
Rank the following compounds in order of decreasing boiling point:
sodium fluoride ( \rm NaF ), methane ( \rm CH_4 ),
2 answers
1,255 views
Answers (2)
2.5
how money is printed in today world
