Answer:
Pressure and volume have an inverse relationship when temperature is constant. This is Boyle's Law.
Explanation:
P1V1=P2V2
Answer:
Light and sound both are waves, but sound requires a material medium to travel, and hence cannot travel in empty space while light can travel through vacuum but not through opaque materials. Both undergo refraction, diffraction and interference.
Explanation:
Answer: 1.14
Explanation:
![HCl+NaOH\rightarrow NaCl+H_2O](https://tex.z-dn.net/?f=HCl%2BNaOH%5Crightarrow%20NaCl%2BH_2O)
To calculate the molarity of acid, we use the equation given by neutralization reaction:
![n_1M_1V_1=n_2M_2V_2](https://tex.z-dn.net/?f=n_1M_1V_1%3Dn_2M_2V_2)
where,
are the n-factor, molarity and volume of acid which is ![HCl](https://tex.z-dn.net/?f=HCl)
are the n-factor, molarity and volume of base which is NaOH.
We are given:
![n_1=1\\M_1=?\\V_1=10.0mL\\n_2=1\\M_2=0.1M\\V_2=7.2mL](https://tex.z-dn.net/?f=n_1%3D1%5C%5CM_1%3D%3F%5C%5CV_1%3D10.0mL%5C%5Cn_2%3D1%5C%5CM_2%3D0.1M%5C%5CV_2%3D7.2mL)
Putting values in above equation, we get:
![1\times M_1\times 10.0=1\times 0.1\times 7.2\\\\M_1=0.072M](https://tex.z-dn.net/?f=1%5Ctimes%20M_1%5Ctimes%2010.0%3D1%5Ctimes%200.1%5Ctimes%207.2%5C%5C%5C%5CM_1%3D0.072M)
To calculate pH of gastric juice:
molarity of
= 0.072
![pH=-log[H^+]](https://tex.z-dn.net/?f=pH%3D-log%5BH%5E%2B%5D)
![pH=-log(0.072)=1.14](https://tex.z-dn.net/?f=pH%3D-log%280.072%29%3D1.14)
Thus the pH of the gastric juice is 1.14
Answer:
Hey there
Explanation:
The process where organisms better adapted to their environment tend to survive and produce more offspring is called natural selection. It is one of the points of Darwinism by Charles Darwin.
Hope it helps