How many grams of NaHCO3 must be added to 4.0g of K2CO3 to give a pH of 10.80 in 500mL of water?

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

the dissolution of polymer can be thermodynamically described in 2 steps.

the ratio of the conjugate base to the acid required to attain the desired ph.