Formula:How Many Grams Of $Na \left( HCO _3\right)$ Will Need To React To Produce 61.9 Grams Of $Na _3 C _6 H _5 O _7$? Round To The Tenths Place.$\[ \begin{array}{l} 3{Na\left(HCO_3\right)(s)}+C_6 H_8 O_{7(aq)} \rightarrow
Introduction
Chemical reactions are the foundation of chemistry, and understanding how to balance chemical equations is crucial for predicting the products of a reaction and determining the amount of reactants needed. In this article, we will explore how to balance a chemical equation and use molar mass calculations to determine the amount of a reactant needed to produce a specific amount of product.
Balancing Chemical Equations
Balancing chemical equations involves adding coefficients to the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation. This is a critical step in understanding chemical reactions and predicting the products of a reaction.
Let's consider the following chemical equation:
To balance this equation, we need to add coefficients to the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.
Step 1: Count the number of atoms of each element on both sides of the equation
| Element | Reactants | Products |
|---|---|---|
| Na | 3 | 3 |
| C | 1 | 3 |
| H | 9 | 8 + 3(2) |
| O | 9 | 7 + 3(1) |
Step 2: Add coefficients to the reactants and products to balance the equation
To balance the equation, we need to add coefficients to the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.
Molar Mass Calculations
Now that we have balanced the chemical equation, we can use molar mass calculations to determine the amount of a reactant needed to produce a specific amount of product.
The molar mass of a substance is the mass of one mole of that substance. We can use the molar mass of a substance to calculate the number of moles of that substance.
Step 1: Determine the molar mass of the reactant and product
The molar mass of Na(HCO3) is 100.0 g/mol.
The molar mass of Na3C6H5O7 is 306.1 g/mol.
Step 2: Calculate the number of moles of the product
We are given that we need to produce 61.9 grams of Na3C6H5O7.
We can calculate the number of moles of Na3C6H5O7 using the following formula:
moles = mass / molar mass
moles = 61.9 g / 306.1 g/mol = 0.202 mol
Step 3: Calculate the number of moles of the reactant needed
We can calculate the number of moles of Na(HCO3) needed using the balanced chemical equation.
From the balanced equation, we can see that 6 moles of Na(HCO3) are needed to produce 2 moles of Na3C6H5O7.
We can calculate the number of moles of Na(HCO3) needed using the following formula:
moles = (moles of product) x (ratio of reactant to product)
moles = (0.202 mol) x (6/2) = 0.606 mol
Step 4: Calculate the mass of the reactant needed
We can calculate the mass of Na(HCO3) needed using the following formula:
mass = moles x molar mass
mass = (0.606 mol) x (100.0 g/mol) = 60.6 g
Therefore, we need to react 60.6 grams of Na(HCO3) to produce 61.9 grams of Na3C6H5O7.
Conclusion
In this article, we have explored how to balance a chemical equation and use molar mass calculations to determine the amount of a reactant needed to produce a specific amount of product. We have used the balanced chemical equation to calculate the number of moles of the reactant needed and then calculated the mass of the reactant needed using the molar mass of the reactant. This is a critical step in understanding chemical reactions and predicting the products of a reaction.
References
- Chemistry: An Atoms First Approach, by Steven S. Zumdahl
- General Chemistry: Principles and Modern Applications, by Linus Pauling
Discussion
What are some common mistakes that people make when balancing chemical equations?
How do you determine the molar mass of a substance?
Introduction
In our previous article, we explored how to balance a chemical equation and use molar mass calculations to determine the amount of a reactant needed to produce a specific amount of product. In this article, we will answer some common questions related to balancing chemical equations and molar mass calculations.
Q&A
Q: What are some common mistakes that people make when balancing chemical equations?
A: Some common mistakes that people make when balancing chemical equations include:
- Not counting the number of atoms of each element on both sides of the equation
- Not adding coefficients to the reactants and products to balance the equation
- Not checking the balanced equation to ensure that the number of atoms of each element is the same on both sides of the equation
Q: How do you determine the molar mass of a substance?
A: The molar mass of a substance is the mass of one mole of that substance. To determine the molar mass of a substance, you need to know the atomic masses of the elements that make up the substance. You can then add up the atomic masses of the elements to get the molar mass of the substance.
Q: What are some real-world applications of balancing chemical equations and molar mass calculations?
A: Balancing chemical equations and molar mass calculations have many real-world applications, including:
- Predicting the products of a chemical reaction
- Determining the amount of a reactant needed to produce a specific amount of product
- Calculating the yield of a chemical reaction
- Determining the amount of a substance needed to produce a specific amount of product
Q: How do you balance a chemical equation with multiple reactants and products?
A: To balance a chemical equation with multiple reactants and products, you need to follow the same steps as balancing a chemical equation with a single reactant and product. You need to count the number of atoms of each element on both sides of the equation, add coefficients to the reactants and products to balance the equation, and check the balanced equation to ensure that the number of atoms of each element is the same on both sides of the equation.
Q: What is the difference between a balanced chemical equation and an unbalanced chemical equation?
A: A balanced chemical equation is an equation in which the number of atoms of each element is the same on both sides of the equation. An unbalanced chemical equation is an equation in which the number of atoms of each element is not the same on both sides of the equation.
Q: How do you determine the number of moles of a substance needed to produce a specific amount of product?
A: To determine the number of moles of a substance needed to produce a specific amount of product, you need to know the molar mass of the substance and the amount of product needed. You can then use the following formula to calculate the number of moles of the substance needed:
moles = mass / molar mass
Q: What are some common mistakes that people make when calculating the number of moles of a substance needed to produce a specific amount of product?
A: Some common mistakes that people make when calculating the number of moles of a substance needed to produce a specific amount of product include:
- Not knowing the molar mass of the substance
- Not knowing the amount of product needed
- Not using the correct formula to calculate the number of moles of the substance needed
Conclusion
In this article, we have answered some common questions related to balancing chemical equations and molar mass calculations. We hope that this article has been helpful in understanding these important concepts.
References
- Chemistry: An Atoms First Approach, by Steven S. Zumdahl
- General Chemistry: Principles and Modern Applications, by Linus Pauling
Discussion
What are some other common mistakes that people make when balancing chemical equations and calculating the number of moles of a substance needed to produce a specific amount of product?
How do you determine the molar mass of a substance?
What are some real-world applications of balancing chemical equations and molar mass calculations?