sanjeet

This page lists questions and answers that were posted by visitors named sanjeet.

Questions

The following questions were asked by visitors named sanjeet.

why is dilute nitric acid not used in manufacture of hydrogen sulphide instead of dilute sulphuric acid?

two charges +1.2*10^-8 C and -1.6*10^-8 C are placed at the corners A and B of a right angled triangle ABC in which AB=3cm, AC=5cm. find the electric field at C.

a piece pf ice floats in water.what will happen to the water level when the ice melts completely?

a steel rod when measured with a zinc scale both being at 25 degree Celsius appear to be one meter long.if the zinc scale is correct at 0 degree Celsius, what is the actual length of the rod at 0 degree Celsius? [linear expansivity of steel=12*10^-6 /degr...

why is earth bulged at the equator?will any one explain me about this?

why does the flame of a candle always faces upwards though the gravity of earth is pulling everything towards it centre? and though it is faced sidewards?please answer this question as quickly as possible

Answers

The following answers were posted by visitors named sanjeet.

but i am talking about laboratory preparation of hydrogen sulphide gas. it is prepared by treating ferrous sulphide with dilute sulphuric acid.but i want to know what happens when we use nitric acid instead of sulphuric acid.hope u will answer my question...

x^2-4y=8.............(1) 2x+2y=7 or 2x=7-2y or x=7-2y/2......(2) from 1&2 (7-2y)^2-4y=8 or 49-28y+4y^2-4y=8 or 4y^2-32y=41 4y(y-32)=41 either 4y=41....(a) or y-32=41.....(b) from a y=41/4=10.25 from b y=73 so, y=10.25 or 73

heat lost by ice=MLf =22*3.34*10^5 J =7348000 J since heat gained =heat lost 7348000 joules of heat energy is absorbed by the ice box.

R^2=G*M*m/F or,R=(G*M*m/F)^1/2

8/32=1/4=0.25 moles of oxygen