Answer:
0.0015 M
Explanation:
we know, M = n/V = 2.5/1000 = 0.0015 M
Answer:
Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.
Explanation:
Answer:
2.02 g
Explanation:
Molality (m) is the <em>number of moles of solute dissolved in 1 kg (1000 g) of solvent- </em>that is,
<em>
</em>
Our first step is to calculate the moles of NH₃ in 475 grams of methanol, using <u>molality</u> as a conversion factor.
0.250 mol/kg × 0.475 kg = 0.119 mol
This solution contains <u>0.119 moles of NH₃</u>. Now we must convert the moles to grams, using the <u>molar mass of NH₃</u> as a conversion factor
.
17.031 g/mol × 0.119 mol = 2.02 g
Therefore, 2.02 grams of NH₃ must be dissolved in 475 grams of methanol to make a 0.250 m solution.
Patients with hyperparathyroidism would be at risk for developing renal calculi because of high calcium levels excreted by the kidney.
Hyperparathyroidism occurs when there is over secretion of parathyroid hormone by the parathyroid glands.
The parathyroid hormone is responsible for the following in the body:
- Release of calcium by bones into the bloodstream.
- Absorption of calcium from food by the intestines, and
- Conservation of calcium by the kidneys.
Renal calculi are strong masses of stones deposited in the kidneys or urinary bladder.
When there is excess calcium in the blood due to hyperparathyroidism, the kidneys would be over burdened with the excretion of excess calcium.
That extra calcium in the kidney & the urine leads to kidney stone development ( renal calculi).
Therefore, patients with hyperparathyroidism would be at risk for developing renal calculi because of high calcium levels excreted by the kidney.
Learn more here:
brainly.com/question/24153052
In a 2.2 m solution with the same volume there would be 11.825 g of a salt
