Chemistry I18) Calculate the moles and grams of solute in 1.0 L of 0.50M NaCl. 3.0 x 10^-1 mol NaCl 5.0 x 10^-5 mol NaCl 5.0 x 10^-1 mol NaCl 3.0 x 10^-5 mol NaClPrevious Question Next QuestionDo not use the 'Forward' or 'Back' button on your browser.
Question
Chemistry I18) Calculate the moles and grams of solute in 1.0 L of 0.50M NaCl. 3.0 x 10^-1 mol NaCl 5.0 x 10^-5 mol NaCl 5.0 x 10^-1 mol NaCl 3.0 x 10^-5 mol NaClPrevious Question Next QuestionDo not use the 'Forward' or 'Back' button on your browser.
Solution
To calculate the moles of solute in a solution, you can use the molarity formula which is:
Molarity (M) = moles of solute / liters of solution
Given that the molarity (M) is 0.50M and the volume of the solution is 1.0L, you can rearrange the formula to solve for the moles of solute:
Moles of solute = Molarity (M) * liters of solution Moles of solute = 0.50 mol/L * 1.0L Moles of solute = 0.50 mol
So, there are 0.50 moles of NaCl in the solution.
To calculate the grams of the solute, you can use the molar mass of NaCl which is approximately 58.44 g/mol.
Grams of solute = moles of solute * molar mass Grams of solute = 0.50 mol * 58.44 g/mol Grams of solute = 29.22 g
So, there are 29.22 grams of NaCl in the solution.
Similar Questions
<ol> <li>Mole Calculation Review:</li> </ol> <p>a. To calculate the number of moles from grams, we use the formula:</p> <p>moles = mass (g) / molar mass (g/mol)</p> <p>The molar mass of NaCl (Sodium Chloride) is approximately 58.44 g/mol and the molar mass of Na2CO3 (Sodium Carbonate) is approximately 105.99 g/mol.</p> <p>i. For 55 g of NaCl:</p> <pre><code> moles = 55 g / 58.44 g/mol = 0.94 moles </code></pre> <p>ii. For 0.025 g of Na2CO3:</p> <pre><code> moles = 0.025 g / 105.99 g/mol = 0.00024 moles </code></pre> <p>b. To calculate the mass in grams from moles, we use the formula:</p> <p>mass (g) = moles * molar mass (g/mol)</p> <p>i. For 0.5 moles of NaCl:</p> <pre><code> mass = 0.5 moles * 58.44 g/mol = 29.22 g </code></pre> <p>ii. For 2.11 moles of Na2CO3:</p> <pre><code> mass = 2.11 moles * 105.99 g/mol = 223.64 g </code></pre> <ol start="2"> <li>Molarity (mol/L) is a measure of concentration. It represents the number of moles of a substance per liter of solution.</li> </ol> <p>a. mol/L means moles per liter. It is a unit of concentration that tells us how many moles of a substance are present in one liter of solution.</p> <p>b. mol/L and grams/liter are both measures of concentration. The main difference between them is what they are measuring. mol/L measures the number of moles of a substance per liter of solution, while grams/liter measures the mass of the substance per liter of solution. The similarity is that both are used to express the concentration of a solution. However, mol/L takes into account the molecular weight of the substance, while grams/liter does not.</p> ####
Calculate the molar concentration of a solution that is prepared by dissolving 5.00 g of sodium chloride, NaCl, in 2.00 dm3 of water.
How many moles are there in 7.415 g of NaCl?Give your answer in moles and to three decimal places.(Molar mass of NaCl = 58.44 g mol-1)
Explain your understanding:1. Mole calculation review. Show your work here:a. How many moles is:55 g of NaCl?0.025 g of NaCO3?b. How many grams is:0.5 moles of NaCl?2.11 moles of NaCO3?2. There are several ways to measure Concentration. This simulation uses Molarity (mol/L).a. What does mol/L mean?b. Describe in your own words how mol/L compares to grams/liter. (similarities and differences)
Calculate the mass of NaCl needed to prepare 1.50 L of 0.250 M NaClGroup of answer choices0.375 g21.9 g58.44 g0.250 g
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