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Surgical instruments are sterilized by heating them, while alcohol is used as disinfectant in cleansing the skin prior to an injection. Why are these methods successful in killing harmful microorganism?
How to determine if a salt will dissolve more in an acidic solution or basic solution
1. A 1.000-g sample of ultrapure silicon was treated with an oxidizing agent and the resulting SiO2, after proper collection and drying, weighed 2.1387-g. Calculate the %Si in the sample.
1. What weight of silver chloride precipitate can be produced from an 800-mg sample containing 14.5% CaCl2?
what is the molality of 40.0g KBr dissolved in 800.0g water
Why does distilled water need very little soap to give lather
Calculate the pH of each of the following:
1. [OH-] = 3.0 x 10-9
2. 0.024 M HCI
3. 0.022 M NaOH
4. pOH = 3.2
Why is the blank reading higher in the quantitative analysis of fat
how many grams of N2 and H2 is needed to produce 10.0 g NH3?
use the following molar masses:
N2=28g/mol, NH3=17g/mol and H2=2g/mol
What is the ratio to C2H6 to O2
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#339914 on Dec 2023