Answer: Lactose
Explanation:
Lactose is a sugar present in milk is produced from the glycosidic linkage of galactose and glucose. The anomeric carbon atom of beta-galactose is attached to the 4th hydroxy group of glucose through beta-1, 4 glycosidic linkage.
Galactose an epimer of glucose is produced in the initial steps when glucose is activated by UDP to form UDP-glucose it can be epimerized to Galactose.
When a galactose subunit is combined with another glucose units through a glycosidic linkage it forms a disaccharide Lactose.
Answer:
234 g
Explanation:
We know we will need a balanced equation with masses and molar masses, so let’s gather all the information in one place.
M_r: 22.99 58.44
2Na + Cl₂ ⟶ 2NaCl
Mass/g: 92.0
1. Calculate the <em>moles of Na
</em>
Moles Na = 92.0 × 1/22.99
Moles Na = 4.002 mol Na
===============
2. Calculate the <em>moles of NaCl
</em>
The molar ratio is 2 mol NaCl:2 mol Na.
Moles of NaCl = 4.002 × 2/2
Moles of NaCl = 4.002 mol NaCl
===============
3. Calculate the <em>mass of NaCl
</em>
Mass of NaCl = 4.002 × 58.44
Mass of NaCl = 234 g
Answer:
2RbNO₃ + BeF₂ → Be(NO₃)₂ + 2RbF, because Be keeps a 2+ charge throughout the reaction.
Explanation:
- It is a double replacement reaction.
- A double replacement reaction is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.
- In this reaction, there is no change in the oxidation state of different atoms.
- It is just a replacement reaction.
<em>2RbNO₃ + BeF₂ → Be(NO₃)₂ + 2RbF, because Be keeps a 2+ charge throughout the reaction.</em>
<span>A concentration cell is a limited form of a galvanic cell that has two equivalent half-cells of the same composition differing only in concentrations.</span>
<span>A concentration cell acts to dilute the more concentrated solution and concentrate the more dilute solution, creating a voltage as the cell reaches an equilibrium.</span>