In the paleoatmosphere, the primary gases were _____. a) oxygen, carbon dioxide, nitrogen b) carbon dioxide, nitrogen, and water
1 answer:
You might be interested in
Answer: The pH 0f 0.10 solution of HCl is 1.00
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydrogen ion concentration.
According to stoichiometry,
1 mole of gives 1 mole of
Thus moles of
gives =
moles of
Putting in the values:
Thus pH 0f 0.10 solution of HCl is 1.00
<h2>Answer:</h2>
We will need to know Avogadro's number and the molar mass of sucrose for this problem to do dimensional analysis.
- Avogadro's number: 6.022 × 10²³ molecules
- Molar mass of sucrose: 342.2965 g/mol
250g × ×
= 4.398 molecules
There are <em>4.398 sucrose molecules </em>in 250 grams of sucrose.