13.8 g of magnesium chloride is equal to 8.73 x 10 22 formula units ( MgCl2 ). chlorhydrate of magnesium. a two-chloride ion and one magnesium-based inorganic molecule.
Why is magnesium chloride useful?This drug is a mineral supplement used to prevent and cure low levels of magnesium in the blood. Certain brands are also used to treat symptoms of too much stomach acid, including indigestion, heartburn, and stomach discomfort.
What does the mineral magnesium chloride do in food?Chloride of magnesium
It serves as a crucial coagulant in the production of tofu, soy, drinks, and infant formula milk. Magnesium chloride is also employed in the brewing of beer as a taste ingredient and in food coloring.
MgCl2 mass = 13.8 g
Molar mass of MgCl2 = 95.2 g/mol
Number of moles of MgCl2 = ( mass of MgCl2 / Molar mass of MgCl2)
= ( 13.8g ) / ( 95.2g/mol) = 0.14496 mol
Number of MgCl2 moleucles ( or number of formula units) = Moles of MgCl2 x avagadro number
= 0.14496 mol x 6.022 x 10^ 23
= 8.73 x 10^ 22
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2. When administering an oral liquid to a patient what PPE is required?
Single chemo-therapy gloves
Double chemo-therapy gloves
Protective gown
Respiratory protection
Double chemo-therapy gloves and Protective gown
Answer:
Among the options you provided, the correct answer would be Double chemo-therapy gloves and Protective gown, as administering oral liquid to a patient carries a risk of splashing or splattering, and healthcare workers may want to avoid any contact with the patient's body fluids or the medication. However, it is important to note that this may depend on the specific policies and regulations in the healthcare setting, and healthcare workers should always follow the appropriate protocols and guidelines. Respiratory protection is not typically necessary for administering oral liquid. Single chemo-therapy gloves may be used for standard precautions, but the use of double gloves may provide additional protection.
Explanation:
Which statement is completely accurate?
Responses
Atoms of the same element always have different atomic weights.
Atoms of the same element always have different atomic weights.
Atoms of the same element can have neutrons but exist without protons.
Atoms of the same element can have neutrons but exist without protons.
Atoms of the same element always have different numbers of neutrons.
Atoms of the same element always have different numbers of neutrons.
Atoms of the same element can have different numbers of neutrons.
Answer:
Atoms of the same element can have different numbers of neutrons.
Explanation:
This statement is true because atoms of the same element have the same number of protons, which determines the element's atomic number. However, they can have different numbers of neutrons, which gives rise to different isotopes of that element. These isotopes have the same number of protons, but different numbers of neutrons, leading to different atomic weights. So, while the number of protons is fixed for a particular element, the number of neutrons can vary.
URGENT (will give brainliest)
The overall energy change for the combustion of one mole of methane according to given chemical equation is 2648 kJ/mole.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The combustion involves reactants that is 413×4 +498×2=2648 kJ.
Thus, overall energy change for the combustion of one mole of methane according to given chemical equation is 2648 kJ/mole.
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Which is made by weathering?
Question 5 options:
sediments
ash
magma
minerals
Answer: sediments
Explanation: Weathering of volcanic ash and pumice is unique regarding minerals formed and mineral formation. These minerals include allophane, imogolite, opaline silica, and some halloysites, and have distinctive structures and properties. Mar 10, 1987
Erosion and weathering transform boulders and even mountains into sediments, such as sand or mud. A dissolution is a form of weathering—chemical weathering. With this process, water that is slightly acidic slowly wears away the stone. These three processes create the raw materials for new, sedimentary rocks.