riya

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

Questions

The following questions were asked by visitors named riya.

A sample of gas occupies 29 L under a pressure of 1.3 atm. What would the resulting volume be if the pressure were increased to 3.9 atm if the temprature did not change?

1). change to exponential form: log2^256=8; 2^8=256 log0.0001=-4; 10^-4=0.0001 2). change to logarithmic form: 5^3=125; log5^125=3 4^-3=1/64; log4^1/64=-3 3). solve the equation: 3^(x-2)=27^(x+1) 3^(x-2)=(3^3)^(x+1) 3^(x-2)=3^(3x+3) x-2=3x+3 -5=2x -5/2=x...

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An aluminium can contains ferrous sulphate solution. It is observed that after a few days it develops holes in it. Explain the observation and write the chemical equation for it.

for an aqueous solution having Calcl2 (2molar) and Mgcl2 (5molal) and specified gravity of solution is 1.145 calculate molality of chloride ion and molality if chloride ion.

A commercially available sample of sulphuric acid is 15% H2SO4 by mass (density=1.10g/ml) Calculate the molarity ,normality and molality.

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At what height above the surface of the earth does the acceleration due to gravity reduces by 64% .radius of earth 6400 km

find the SI and amount of- $225 for 3 years 9 months at 16%p.a

plz help me with the frequency factor value and activation energy value of diammonium phosphate production.

Calculate the total present value today (to 2 decimal places) of the following cash flows: $300 due in 2 years from today $1,000 due in 5 years from today $200 due in 15 years from today Use an interest rate of 12% per annum.

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Answers

The following answers were posted by visitors named riya.

(1.3 atm)(29L)=(P2)(3.9) 9.66=P2

Thank you for your help.

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Each side of a rhomus is 10 cm if

average velocity = displacement/time=1000km/15hr=200/3=200*1000/3*3600=500/27m/s

average velocity =displacement/time=1000Km/15hr=200/3=200*1000/3*3600=500/27m/s

5x+3y=4 [eqn.1] 3x+4y=9[eqn.2] now, x=4-3y/5[eqn.3] Now putting the value of x in eqn.2 3(4-3y/5)+4y=9 12-9y/5+4y=9 12-9y+20y/5=9 12+11y=45 11y=33 y=3 And x=4-3y/5 x=4-3*3/5 x=4-9/5 x=-1

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anonymous cos 90 is 0 itself Reiny gave the correct answer the answer is right