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- Find out the molecular weight of Lactose
- Add that many grams of Lactose into a 1000ml volumetric flask
- Make up the volume to 1000ml with water
- Your 1 Molar solution of Lactose is ready
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The molar mass of lactose is 342,3 g/mol; the solubility of lactose is 216 g/L at
20 0C. Consequently you cannot prepare a molar solution of lactose.
What else can I help you with?
What is the Osmolarity of 0.4 M Ammonium3 PO4 explain how?
Molarity = moles of solute / L of solutionOsmolarity = osmoles of solute / L of solution1 Osmole = 1 mole of osmotically-active solute. (NH4)3PO4 dissociates into 3 NH4+ ions and 1 PO4- ion (total 4 solute particles), so 4 osmoles of (NH4)3PO4 result from 1 mole of (NH4)3PO4. Therefore, because 0.4 moles (NH4)3PO4 per Liter solution are in an 0.4 M solution, 1.6 osmoles of (NH4)3PO4 per Liter solution are present. Thus...Osmolarity = osmoles of solute / L of solution = 1.6 osmoles of (NH4)3PO4 / L of solution = 1.6 OsM
How big does a mole typically grow in size?
A mole typically grows to be about 6 inches in length, including the tail.
What is inside a mole on the skin?
A mole on the skin is made up of clusters of pigment-producing cells called melanocytes. These cells give the mole its color and can sometimes grow in a raised or flat shape on the skin.
What are the potential risks associated with having hair on a mole, and should it be removed for health reasons?
Having hair on a mole can make it difficult to monitor changes in the mole's appearance, which could be a risk factor for skin cancer. It is recommended to consult a dermatologist to determine if the mole should be removed for health reasons.
How many molecules are in 1 mole of Glucose?
There are 6.022 x 10^23 molecules in 1 mole of glucose. This number is known as Avogadro's number and represents the number of units (atoms, molecules, etc.) in one mole of a substance.
1 Molar solution of Lactose?
342 grams of Lactose in 1 litre water or 34.2 grams in 100 mls.
How would you prepare a 1 mole solution of dimethoxyhydroxyacetophenone?
To prepare a 1 mole solution of dimethoxyhydroxyacetophenone, you would dissolve 166.21 grams of the compound in enough solvent to make a total volume of 1 liter. Calculate the required weight based on the molar mass of dimethoxyhydroxyacetophenone (C10H12O4).
How many lactose molecule in one mole of lactose?
mole of lactose x 6.023 x 10(>23) molecules (avagadro number)
How do you prepare 1n solution?
Dissolve 1.0 mole gas (17 gram) in 1.0 Liter water
Does the mole of solution is equal to mole of solute plus mole of solution?
No, the mole of solution is not equal to the mole of solute plus the mole of solvent. The mole of solution refers to the total amount of moles in a given volume of solution, which includes both the solute and the solvent.
What amount of NaOH is required to prepare 1N NaOH solution and why only that amount is used?
To prepare a 1N NaOH solution, you would need to dissolve 40 grams of NaOH in water to make 1 liter of solution. This amount is used because 1N solution means 1 mole of NaOH per liter of solution, and the molar mass of NaOH is 40 g/mol, so 40 grams of NaOH is needed to have 1 mole in 1 liter of solution.
How can we prepare 1M solution of NaCl?
You could titrate equal volumes of 1M solution of NaOH and 1M solution of HCl to obtain 1M solution of NaCl.
How do you prepare ammonium molybdate?
Ammonium molybdate is (NH4)2MoO4. Its molar mass is 148g/mol. A 0.5M solution will have half a mole per liter of water. Half a mole of ammonium molybdate is 74g, so you would measure out 74g of it, and dissolve it in a liter of water.
What weights of Bovine Serum Albumin molecular weight 66000 are required to give solutions of 10ml and 100ml volumes containing 1mole of BSA?
To prepare a 10ml solution containing 1 mole of BSA (Molecular weight 66000 g/mol), you would need 66g of BSA. To prepare a 100ml solution containing 1 mole of BSA, you would need 660g of BSA. Remember to adjust the volume accordingly after dissolving the BSA to ensure accurate concentration.
How can you prepare 0.01M KCL solution in 1liter?
To prepare a 0.01M KCl (potassium chloride) solution in 1 liter, you would need to dissolve 0.74 grams of KCl in enough water to make 1 liter of solution. This can be calculated using the formula: moles = Molarity x Volume (in liters) x Molecular weight of KCl.
What is the osmolarity of a 0.1 mole sodium chloride solution?
One mole solution of sodium chloride makes 1000 millimole. So 0.1 mole solution of sodium chloride will have 100 millimole in the solution.
How do you prepare a solution of 1 M HClO4?
To prepare a 1 M solution of perchloric acid (HClO4), you would need to dissolve 1 mole of HClO4 in enough water to make a final volume of 1 liter. This can be calculated by using the formula: moles = Molarity (M) x Volume (L). Please handle perchloric acid with caution and use appropriate safety measures while preparing the solution.
