0.050 kg of 4.0% (m/m) MgCl2
the answer is 2.0g MgCl2
how do you show the work
It would help if you asked a question. There is none here. Do you want grams MgCl2? If you have 0.050 kg solution that is 0.050 kg x (1000g/kg) = 50 g solution. If that is 4% MgCl2, then 50g solution x 0.04 = 2 g MgCl2
Well, let's break it down step by step:
Step 1: Convert the given mass from percentage to grams:
0.050 kg × 1000 g/kg = 50 g
Step 2: Determine the mass of MgCl2 in the given 4.0% solution:
50 g × 0.04 = 2.0 g
So, the answer is 2.0 g of MgCl2. Tada! Now, if only magnesium chloride had a talent for juggling, it would be a real "circus" of elements.
To show the work, we will need to use the formula for mass/mass percent concentration:
Mass of solute = Mass of solution × (Mass percent / 100)
Given:
Mass of solute = 0.050 kg
Mass percent (m/m) = 4.0%
We need to find the mass of MgCl2.
Step 1: Convert the mass percent to a decimal:
4.0% = 4.0/100 = 0.04
Step 2: Rearrange the formula and solve for the mass of the solution:
Mass of solution = Mass of solute / (Mass percent / 100)
Mass of solution = 0.050 kg / 0.04
Mass of solution = 1.25 kg
Step 3: Use the mass of the solution and the mass percent to find the mass of MgCl2:
Mass of MgCl2 = Mass of solution × (Mass percent / 100)
Mass of MgCl2 = 1.25 kg × 0.04
Mass of MgCl2 = 0.05 kg = 50 grams
Therefore, the mass of 0.050 kg of 4.0% (m/m) MgCl2 is 50 grams.
To show the work, we need to calculate the mass of MgCl2 in the given 0.050 kg solution with a concentration of 4.0% (m/m).
Step 1: Convert the given concentration to a decimal form.
The concentration of 4.0% (m/m) means there are 4.0 grams of MgCl2 in every 100 grams of the solution. So, we divide 4.0 by 100 to get the decimal form: 0.04.
Step 2: Multiply the decimal concentration with the given solution mass.
Multiply 0.04 by 0.050 kg to calculate the mass of MgCl2 in the solution:
0.04 * 0.050 kg = 0.002 kg.
Step 3: Convert the mass of MgCl2 from kilograms to grams.
Since the answer is expected in grams, we need to convert the mass of MgCl2 from kilograms to grams. Multiply 0.002 kg by 1000 to get the answer in grams:
0.002 kg * 1000 = 2.0 grams.
Therefore, the mass of MgCl2 in the given 0.050 kg solution with a concentration of 4.0% (m/m) is 2.0 grams.