The specific heat of unknown material : 3.675 J/g °C
<h3>Further explanation</h3>
Given
mass of block = 22.5 g
Q = heat = 2067 J
Δt=25 °C
Required
The specific heat
Solution
Heat can be formulated :
Q = m.c.Δt
Input the value :
2067 J = 22.5 g x c x 25 °C
c = 3.675 J/g °C
Answer:
Calculate the volume of dry gas at STP. 28). A 255-mL sample of nitrogen was collected over water at 21oC at a pressure of 745 mm
Explanation:
The volume of apple juice could a diabetic person drink : 100 ml
<h3>Further explanation</h3>
Given
sugar allowance = 8 g
sugar concentration of apple juice : 8.0% w/v
Required
Volume of apple juice
Solution
The concentration of a substance can be expressed in several quantities The concentration shows the amount of solute in a unit of the amount of solvent.
% w/v = mass of solute (weight) in g / 100 ml solution
So for 8% w/v = 8 g of sugar(solute) in 100 ml of apple juice
Answer:
When I was 12 oofoff susidn
The ground-state electronic configuration follows the order of orbitals as shown in the first picture. So, we can deduce that the electronic configuration given is in order. However, each orbital must have a maximum number of electrons to be filled before it can move on to the next orbital. Since the d orbital must hold 10 electrons, that means that it should have held 5 electrons more. The missing 5 electrons were excited to the next 5p orbital.
<em>Thus, there are 5 excited electrons.</em>
