Functions of the following equipment's are-
1. ASPIRATOR is a suction machine .It is a medical device that is primarily used for removing obstructions such as mucus, saliva, blood, or secretions — from a person's airway.
2.Beakes are useful as a reaction container for holding liquid or solid samples. They are also used for catching liquids from titrations and filtrates from filtering operations.
3. pipettes are used in laboratory to measure out or transfer small quantities of liquid, in volumes of milliliters (mL), microliters (μL).
4. fire tongs are used for holding hot apparatus.
5. test tubes are used for holding solutions and carrying out the reactions.
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1.1943571. The molar mass of K3PO4 is 212.27. After using stochieometry, you get your answer.
The density means that the mass divided by the volume with the formula: density = mass/volume. So volume=mass/density. Under same temperature, the volume=15.5/0.789=19.6 cm3=19.6 ml.
The element itself is Yttrium, which is a transition metal and not that reactive. Since it has 39 protons it will also have 39 electrons.
You have to use density=mass/volume formula:
Solve for x and you get
2282.75 grams
