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What is the water potential of an open beaker containing pure water?
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- How many ml 2M NaOH would it take to neutralize 20 ml of 0.5M HCI?Why potato strip increase in size when placed in distilled water?in the data given, using salometer, water and salt is being combined with that the results showed that the percentage of salt dissolving in distilled water has greatest percentage, what is the reason behind?
- What volume of a 40% v/v solution must be used to produce 500mL of 5% v/v solution?Using a P-1000 micropipette, you transfer 800 microliter of ddH2O to a beaker and measure its weight. It turns out to be only 780 milligram; what is the percent error of this micropipette?If 400 mL of a 20% w/v solution were diluted to 2 L, what would be the finalpercentage strength?
- What is the molecular weight of the molecule that gets eluted from the column at 10 ml?What will be the dilution factor if you added 195 mL water to 5 mL of a concentrated plant extract? (2If you have a stock vial of an antibiotic with a concentration of 450 mg/mL, but the antibiotic is to be administered at 90 μg/mL in a total volume of 10cc, diagram/describe how you would do this?
- Describe how you would make 500.0 mL of a 0.200 M NaOH solution from a 6.0 M stock NaOH solution and deionized waterHow many moles of Na2S2O3 would be required to react completely with 0.450 g of AgBr?The column efficiency is constant for a column that uses a cons tant eluent composition. What does this say about the peak width of slowly eluting compounds relative to those of rapidly eluting compounds?