Answer: The limiting reactant is
Na
. The theoretical yield is 112 g
NaCl
.
Explanation:
Answer:
The work done is 123.5 J
Explanation:
Given that:-
Temperature = 260 K
The expression for the work done is:
Where,
n is the number of moles = 52.0 mmol = ![52.0\times 10^{-3}\ moles](https://tex.z-dn.net/?f=52.0%5Ctimes%2010%5E%7B-3%7D%5C%20moles)
W is the amount of work done by the gas
R is Gas constant having value = 8.314 J / K mol
T is the temperature
V₁ is the initial volume = 300 cm³
V₂ is the final volume = 100 cm³
Applying in the equation as:
The work done is 123.5 J
Answer:
![0.8696\ \text{J/g}^{\circ}\text{C}](https://tex.z-dn.net/?f=0.8696%5C%20%5Ctext%7BJ%2Fg%7D%5E%7B%5Ccirc%7D%5Ctext%7BC%7D)
Explanation:
= Mass of metal = 19 g
= Specific heat of the metal
= Temperature difference of the metal = ![99-23=76^{\circ}\text{C}](https://tex.z-dn.net/?f=99-23%3D76%5E%7B%5Ccirc%7D%5Ctext%7BC%7D)
V = Volume of water = 150 mL = ![150\ \text{cm}^3](https://tex.z-dn.net/?f=150%5C%20%5Ctext%7Bcm%7D%5E3)
= Density of water = ![1\ \text{g/cm}^3](https://tex.z-dn.net/?f=1%5C%20%5Ctext%7Bg%2Fcm%7D%5E3)
= Specific heat of the water = 4.186 J/g°C
= Temperature difference of the water = ![23-21=2^{\circ}\text{C}](https://tex.z-dn.net/?f=23-21%3D2%5E%7B%5Ccirc%7D%5Ctext%7BC%7D)
Mass of water
![m_w= \rho V\\\Rightarrow m_w=1\times 150\\\Rightarrow m_w=150\ \text{g}](https://tex.z-dn.net/?f=m_w%3D%20%5Crho%20V%5C%5C%5CRightarrow%20m_w%3D1%5Ctimes%20150%5C%5C%5CRightarrow%20m_w%3D150%5C%20%5Ctext%7Bg%7D)
Heat lost will be equal to the heat gained so we get
![m_mc_m\Delta T_m=m_wc_w\Delta T_w\\\Rightarrow c_m=\dfrac{m_wc_w\Delta T_w}{m_m\Delta T_m}\\\Rightarrow c_m=\dfrac{150\times 4.186\times 2}{19\times 76}\\\Rightarrow c_m=0.8696\ \text{J/g}^{\circ}\text{C}](https://tex.z-dn.net/?f=m_mc_m%5CDelta%20T_m%3Dm_wc_w%5CDelta%20T_w%5C%5C%5CRightarrow%20c_m%3D%5Cdfrac%7Bm_wc_w%5CDelta%20T_w%7D%7Bm_m%5CDelta%20T_m%7D%5C%5C%5CRightarrow%20c_m%3D%5Cdfrac%7B150%5Ctimes%204.186%5Ctimes%202%7D%7B19%5Ctimes%2076%7D%5C%5C%5CRightarrow%20c_m%3D0.8696%5C%20%5Ctext%7BJ%2Fg%7D%5E%7B%5Ccirc%7D%5Ctext%7BC%7D)
The specific heat of the metal is
.
Answer:
from producers to consumers
Explanation:
Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants
Short answer, don't know but i'm sure the answer is up here
I'll say francium, if the question is right