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5.95g of potassium bromide was dissolved in 400cm3 of water. 1) calculate its molarity, 2)its concentration in g/dm3.

0.125 M 2) 14.875 g/dm3
NF
Answered by Natalie F. • Chemistry tutor
6176 Views

A curve has parametric equations: x = 3t +8, y = t^3 - 5t^2 + 7t. Find the co-ordinates of the stationary points.

First differentiate: dx/dt = 3, dy/dt = 3t 2 - 10t + 7 Using the chain rule: dy/dx = dy/dt * dt/dx = (3t 2 - 10t + 7)/3 At stationary points, the gradient is equal to zero: 3t 2 - 10t + 7 = 0 Solve for t usi...
RB
Answered by Robbie B. • Maths tutor
6126 Views

Upon perfroming vigorous excercise, an athlete's blood glucose begins to decrease. Describe how the body responds when blood glucose concentration begins to decrease.

pancreas detects low blood glucose, so produces glucagon. glycogen is converted to glucose
HV
Answered by Holly V. • Biology tutor
3038 Views

What is the difference between compliance and conformity?

Compliance and conformity are two very similar ideas in psychology, in that they both fall under the umbrella of social influence. However, there is a crucial difference that distinguishes the two. Complianc...
MW
4919 Views

Explain some of the difficulties the modern viewer faces in attempting to analyse or interpret medieval works of art.

There are many factors which render medieval art difficult or even arguably impossible to interpret. Perhaps the most obvious being the passage of time itself, leading to art’s alteration through either natu...
JC
Answered by Jessie C. • Art tutor
1899 Views