I believe the answer to this question is true
Answer:
Explanation:
Answer:
A. to determine the efficiency of the reaction
Explanation:
Percentage is the ratio of the actual yield to theoretical yield as a percentage. It is calculated by dividing the actual yield by theoretical yield then multiplying by 100%.
Calculation of percentage yield is important as it helps in the determination of efficiency of a reaction. For example in most industries for the purpose of making the most product with the least waste.
Additionally, calculating the percentage yield helps in determining other products that may be formed during the reactions.
Answer:
The density of gold is 19. 38
Explanation:
Density is defined as the property that matter, whether solid, liquid or gas, has to compress in a given space. In other words, density is a quantity that allows you to measure the amount of mass in a given volume of a substance. So, the expression for the calculation of the density is the quotient between the mass of a body and the volume it occupies:
Density, according to the International System of Units, is usually expressed in kilogram per cubic meter (kg/m³) or gram per cubic centimeter (g/cm³). Although it can also be expressed in any other unit of mass by volume.
In this case:
- mass= 96.9 grams
- volume= 5 mL
Replacing:
density=19. 38
The density of gold is 19. 38 , that you could approximate the option 19. 32
hydrogen is not balanced
the right balanced equation is
Fe2O3 + 3 H2 -> 2Fe + 3H2O