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What is the molar concentration of a solution of pure water?

Concentration (mol/dm3) = (density (g/dm3)) / (molecular mass (g/mol))

The density of water = 1000 g/dm3

The molecular mass of H2O = (21 g/mol...

JD
19317 Views

How does Thomas Hardy create feelings of loss and regret in the poem 'Neutral Tones?'

Depicting a sad ending to a relationship, Hardy employs multiple literary techniques in order to powerfully convey feelings of loss and regret in 'Neutral Tones'. In particular, use of monochromatic image...

IR
12115 Views

How accurate is it to describe the USA as having a two-party system

The US political system is widely understood as a two-party system, consisting of the Republican and Democratic Parties. This is supported by many structural factors involved in the US political system. F...

BK
Answered by Ben K. Politics tutor
13948 Views

Rearrange to make p the subject. C + 5 p = a ( C – p )

C+5p = a (c-p)

C+5p = ac-ap

5p+ap=ac-c

p(5+a) = c(a-1)

p=(c(a-1))/(5+a)

SM
Answered by Santiago M. Maths tutor
4313 Views

x is an integer such that ‎1≤x≤9, Prove that 0.(0x)recurring=x/99

r=0.0.x.

r=0.0x0x0x0x....

100r=x.0x0x0x     (1)

10,000r=x0x.0x0x0x      (2)

(2) - (1):  9,900r=x00

EE
Answered by Ellie E. Maths tutor
13456 Views

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