Final answer:
The question relates to Chemistry and deals with the mass percent of sodium carbonate in a mixture, a common high school topic. The mass percent is 6.63% when 0.710 kg of sodium carbonate is dissolved in 10.0 kg of water.
Step-by-step explanation:
The subject of the question "What is the mass percent of sodium carbonate in a mixture?" clearly pertains to Chemistry, as it involves the concept of mass percentage which is a way to express the concentration of an element or compound in a mixture. The mass percent of a component is calculated by dividing the mass of the component by the total mass of the mixture and then multiplying by 100%. Here, the component of interest is sodium carbonate (Na2CO3).
Calculating mass percent is a routine component of a high school level chemistry class, where students often deal with the composition of chemical mixtures. Now, let's calculate the mass percent of sodium carbonate in a solution where 0.710 kg of sodium carbonate is dissolved in 10.0 kg of water:
Mass percent = (Mass of solute / Mass of solution) x 100%
Mass percent Na2CO3 = (0.710 kg / (0.710 kg + 10.0 kg)) x 100%
Mass percent Na2CO3 = (0.710 kg / 10.710 kg) x 100%
Mass percent Na2CO3 = 6.63%
So, the mass percent of sodium carbonate in the mixture is 6.63%.