Answers
Final answer:
To find the relative atomic mass of an element, you need to consider the masses of its isotopes and their relative abundance.
Explanation:
To find the relative atomic mass of an element, you need to consider the masses of its isotopes and their relative abundance. The relative atomic mass is the weighted average of the masses of all the isotopes of the element. The formula for calculating relative atomic mass is:
Relative Atomic Mass = (Mass of Isotope1 * Abundance of Isotope1) + (Mass of Isotope2 * Abundance of Isotope2) + ...
For example, let's calculate the relative atomic mass of carbon, which has two isotopes: carbon-12 and carbon-13. The mass of carbon-12 is 12 amu and its abundance is about 98.9%. The mass of carbon-13 is 13.003 amu and its abundance is about 1.1%. We can use the formula:
(12 amu * 0.989) + (13.003 amu * 0.011) = 12.011 amu
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Related Questions
For the experiments from 1-3 with the same temperature change, what other parameters are the same at the initial reaction conditions?a. mmol HCl total mL solution b. mmol NaOH Initial concentration of NaOH c. mL H2O Initial concentration of HCl
Choose all the correct information concerning nuclear reactions: Involves the nuclei of the atoms. Involves large amounts of energy. Only electrons are involved. The mass remains the same. Involves small amounts of energy. Some of the mass is converted into energy.
The chemical equation for this reaction is Ca + O2→CaO. What is the product, or what are the products, of this reaction?
A solution in which the molarity of the hydroxide ion is larger than the molarity of the hydronium ion is termed 1. amphiprotic. 2. electrolyte. 3. basic. 4. neutral. 5. acidic.
Answers
Answer:
The answer is 2.0 g/cm³
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 4 g
volume = 2 cm³
We have
We have the final answer as
2.0 g/cm³
Hope this helps you
b. catalytic turnover more than substrate binding.
c. substrate binding, but not catalytic turnover.
d. catalytic turnover, but not substrate binding.
Answers
Answer:
Explanation:
The various substitutions affect catalytic turnover more than substrate binding.
Answers
Answer:
Saturated solution
We should raise the temperature to increase the amount of glucose in the solution without adding more glucose.
Explanation:
Step 1: Calculate the mass of water
The density of water at 30°C is 0.996 g/mL. We use this data to calculate the mass corresponding to 400 mL.
Step 2: Calculate the mass of glucose per 100 g of water
550 g of glucose were added to 398 g of water. Let's calculate the mass of glucose per 100 g of water.
Step 3: Classify the solution
The solubility represents the maximum amount of solute that can be dissolved per 100 g of water. Since the solubility of glucose is 125 g Glucose/100 g of water and we attempt to dissolve 138 g of Glucose/100 g of water, some of the Glucose will not be dissolved. The solution will have the maximum amount of solute possible so it would be saturated. We could increase the amount of glucose in the solution by raising the temperature to increase the solubility of glucose in water.
The solution made by adding 550 g of glucose to 400 mL of water at 30°C is saturated. If you want to increase the amount of glucose in the solution without adding more glucose, you can increase the temperature.
The solution made by adding 550 g of glucose to 400 mL of water at 30°C is saturated.
Since the solubility of glucose at 30°C is 125 g/100 g water, adding 550 g of glucose to 400 mL of water exceeds the maximum amount of glucose that can dissolve in the given amount of water.
To increase the amount of glucose in the solution without adding more glucose, you can increase the temperature. Higher temperatures generally increase the solubility of solutes in water. By increasing the temperature, you can dissolve more glucose in the solution.
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