# Posts by Atul

Total # Posts: 14

**pharmachemistry**

How can i prepare a 100ml, 0.1M phosphate buffer solution (pH = 5) out of Na2HPO4 and NaH2PO4

**science**

A particle is dropped from height 100m and

**science**

13. A ball is thrown vertically upwards and it returns to the thrower after 6 sec ( g=9.8 m/s2) Find. (i) The velocity with which it was thrown up. (ii) The maximum height it reaches (iii) Its position after 4 sec.

**Chemistry**

which of the following is the stongest oxidizing agent? 1.NaBiO3, 2. K2Cr2O7, 3. KMnO4, 4. PbO2

**english**

Sentence for word duke.

**maths**

A loaf of bread is normally distributed with a mean of 22 oz and a standard deviation of 0.5 oz. What is the probability that a loaf is larger than 21 oz?

**Chemistry**

1. In an equilibrium, A + B ---> C + D; "A" & "B" are mixed in a vessel at temperature "T". The initial concentration of "A" was twice the initial concentration of "B", & after the equilibrium has reached, concentration of &...

**Science (Chemistry)**

Iron forms two chlorides.One gram of the first chloride produces 2.26g of silver chloride and one gram of the second chloride produces 2.65g of silver chloride.Prove that these data illustrate the law of multiple proportions Please provide detailed answer

**chemistry**

Iron forms two chlorides.One gram of the first chloride produces 2.26g of silver chloride and one gram of the second chloride produces 2.65g of silver chloride.Prove that these data illustrate the law of multiple proportions

**Science(Chemsitry)**

I too wonder what it means

**Science(Chemsitry)**

HNO3 used as a reagent has specific gravity of 1.42g/ml and contains 70% by strength HNO3. Calculate a)Normality Of Acid b)Volume of acid that contains 63g pure acid c)Volume of water required to make 1N solution from 2ml conc.HNO3

**physics**

p.d.=100000V therefore, workdone , W=q×p.d. W=1.6×10^-19 × 100000 =1.6×10^-14 Joules since work done = force × displacement F×s=1.6×10^-14 m×a×s=1.6×10^-14 9.1×10^-31×a×s=1.6×10^-14 a×s=(...

**Statistics**

yes

**percentage**

find the number which when increased by 30% becomes 39

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