Answer:
0.402 moles
Explanation:
1 mole NaCl/58.44g Nacl ×23.5g NaCl
grams get cancelled out and you are left with moles
Answer:
A. 0.228
Explanation:
Partial pressure as name suggests is partial pressures that add up to a final (total) pressure.
Here total pressure is 1.348 atm.
He + Ne + N2 = 1.348
0. 124 + 0.996 + N2 = 1.348
N2 = 0.228
Generally speaking, acidic soil, with a pH lower than 6.0, yields blue or lavender-blue hydrangea blooms. Alkaline soil, with a pH above 7.0, promotes pinks and reds. With a pH between 6 and 7, the blooms turn purple or bluish-pink. To lower your pH, add garden sulfur or aluminum sulfate to your soil.
The secret's in the soil
Let’s look at why pH is so important.
Most major plant nutrients are more accessible at a pH of 6 to 6.5. A pH that is too high or too low can keep plants from absorbing nutrients from the soil. The nutrients are unavailable — or not absorbable — to the plant because of soil's chemistry. This problem can manifest itself in a variety of ways, but in the case of hydrangeas, the bloom color changes.
Color variation in hydrangeas is due to the presence or absence of aluminum compounds in the flowers. If aluminum is present, the color is blue. If it is present in small quantities, the color is variable between pink and blue. If aluminum is absent, the flowers are pink.
