Answer:
146 mL
Explanation:
Step 1: Write the balanced equation
H₃PO₄ + 3 NaOH ⇒ Na₃PO₄ + 3 H₂O
Step 2: Calculate the reacting moles of sodium hydroxide
119 mL of 0.315 M NaOH react.
Step 3: Calculate the reacting moles of phosphoric acid
The molar ratio of H₃PO₄ to NaOH is 1:3. The reacting moles of H₃PO₄ are 1/3 × 0.0375 mol = 0.0125 mol.
Step 4: Calculate the reacting volume of phosphoric acid
0.0125 moles of H₃PO₄ are in a 0.0855 M solution.
Answer:
we can use ratio to find the moles of NO first we have to make the balance equation
Answer:
Assertion (A) is true
but reason (R) is false.
Explanation:
If we look at the assertion closely, it is true that a sublime substance changes from solid to gas without passing through a liquid state. Naphthalene,
camphor, iodine and ammonium chloride are some common examples of the substances which undergo sublimation.
However, not all solids first pass through a liquid state before converting to gas. Sublime solids such as those listed above passes directly from solid to gas without passing through a liquid state.
Hence the assertion is true but reason is false.
Answer:
55641.656 × 10^23 molecules
Explanation:
Get the molar mass, multiply by amount of stuff, multiply by Avogadros number.
More detail in picture attached.
Hope it helps. Brainliest Appreciated. :)