Photosynthesis is where carbon dioxide and water through light energy is converted in glucose and other organic compounds.
The electromagnetic is a force that combines the effects of electrical charge and magnetism. The electromagnetic force can either attract or repel the particles on which it acts.
Answer:
The concentration of the diluted solution is 3.75 M
Explanation:
Step 1: Data given
Volume of a stock solution = 75 mL = 0.075 L
The molarity of stock solution = 5.0 M
We add 25 mL, The total volume is 100 mL = 0.100 L
Step 2: Calculate the concentration of the diluted solution
C1*V1 = C2*V2
⇒with C1 = the initial concentration = 5.0 M
⇒with V1 = the initial volume = 0.075 L
⇒with C2 = the new concentration = TO BE DETERMINED
⇒with V2 = the diluted volume = 0.100 L
5.0 M * 0.075 L = C2 * 0.100L
C2 = (5.0M * 0.075 L) / 0.100 L
C2 = 3.75 M
The concentration of the diluted solution is 3.75 M
Answer
C. Difference in temperature
Explanation
According to thermodynamics, heat transfer occurs when heat from a high temperature reservoir moves to a low temperature reservoir. For heat to be transferred, the two objects should have different temperatures with one having more temperature than the other. Heat transfer in solids is by conduction, in fluids is by convection and by radiation.
Answer:
Mass of the sample = m = 894.0 g
Initial temperature of the sample = T_i=-5.8^oC=267.35 KT
i
=−5.8
o
C=267.35K
Final temperature of the sample = T_f=17.5^oC=290.65 KT
f
=17.5
o
C=290.65K
Change in temperature = \Delta T=(T_f-T_i)ΔT=(T
f
−T
i
)
Specific heat capacity of the substance = c
Heat required to raise the temperature of a 894.0g sample = Q
Q = 4.90kJ = 4900 J
Q=m\times c\times \Delta T=m\times c\times (T_f-T_i)Q=m×c×ΔT=m×c×(T
f
−T
i
)
4900 J=894.0 g\times c\times (290.65 K-267.35 K)4900J=894.0g×c×(290.65K−267.35K)
c=0.23523 J/g K\approx 0.235 J/g Kc=0.23523J/gK≈0.235J/gK
The chemist will report the specific heat capacity of the substance as 0.235 J/g K.