70% of 50,000 is 35,000.
The 70th percentile is the score below which 70 percent of the cases fall. If your 70th percentile is 56, 70 percent of students scored below 56.
70% of a circle.
It looks like a 70% full pie graph. Cant really illustrate it here. see related link below
It means that it will probably rain.
100% alcohol is more effective because of the more alcohol concentration in the drink.
First of all, because technological limits mean that we can only get alcohol at a purity of about 90%. 90% alcohol is also far more expensive than 70%, so it is more cost effective to use 70%. Ignoring all of that, the main reason is that 70% alcohol works just fine and sterilizes object very well.70%alcohol is the efficient concentration to denature the protein.
It is difficult and expensive to refine anything to 100% purity. Best to use 70% as it is just as effective and cost a whole lot less.
70 percent alcohol, also known as isopropyl alcohol, is most effective for disinfection because it has a balance of water and alcohol content. This concentration allows the alcohol to penetrate the cell wall of microorganisms more effectively, denaturing their proteins and disrupting their cellular functions. Higher concentrations of alcohol may evaporate too quickly, while lower concentrations may not be as effective at killing bacteria and viruses.
70% alcohol has been found to be more effective in killing microbes.Higher and lower concentration may not be as effective.90% alcohol coagulate proteins in contact.suppose 90% alcohol is poured over one celled organism,the alcohol penetrate the cellwall of the organism.the coagulated protein would then prevent the alcohol further from the cell and no more coagulation then take place.now,if 70% alcohol is added into one celled organism.The diluted alcohol also coagulates the protein, but at a slower rate,so that it penetrates all the cell before coagulation.Then all the cell coagulated and the organism died.
70% alcohol is commonly used for sterilization as it is more effective at killing bacteria and viruses compared to higher concentrations of alcohol. The 70% concentration allows for better penetration into microbial cells, leading to better disinfection. It also evaporates more slowly, providing more contact time for effective sterilization.
70% alcohol solution is more effective for sterilization compared to higher concentrations like 100% alcohol because it has a lower evaporation rate, allowing it to stay in contact with the bacteria or viruses longer to kill them. A 70% alcohol solution also penetrates the bacterial cell membrane more effectively, denaturing proteins and disrupting cell function. Additionally, 70% alcohol is less likely to damage surfaces or instruments being sterilized.
2/3 of 70% and 1/3 of 10%
A 70% alcohol solution is effective as a disinfectant because it has the optimal concentration to penetrate bacterial cells and denature proteins, effectively killing them. Higher concentrations of alcohol can evaporate too quickly and be less effective at killing bacteria, while lower concentrations may not be as potent.
Because the concentration of alcohol is lower; you pay the alcohol not the water.
70% alcohol is considered the most effective concentration for disinfecting because it strikes a balance between killing bacteria and viruses while allowing enough time for the alcohol to penetrate the cell walls. Higher concentrations evaporate too quickly, while lower concentrations are less effective at killing microbes. The 70% concentration also helps to denature proteins and disrupt the cell membrane more effectively.
A concentration of 70% alcohol is generally preferred for sterilization during plant tissue culture. This is because a 70% solution is more effective at penetrating the cell walls of microorganisms, making it a better option for disinfection. Using absolute alcohol may be too harsh and could damage plant tissues.