Use the following to answer questions A &B Mg N. + v. K0 → MgO + K3N A. If 14 moles of potassium oxide reacts with an excess amount of magnesium nitride, how many grams of potassium nitride will be made? B. How many grams of magnesium nitride is needed to react with an excess amount of potassium oxide to produce 11.6 grams of magnesium oxide?

3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solutioni is water. In a hardware store, you can buy industrial strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume of vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas produced (m) vs Time (s) for Volcano t Time (s) Volume of gas produced (mL) 10 25 38 40 20 30 46 30 Volume of gas produced (ml) 50 40 50 52 60 53 40 Time ( 20 60 Volcano 2 Volume of gas produced iml) vs. Time is) for Vocano 2 Volume of…

Use the Henderson-Hasselbalch equation to calculate the pH of each solution:

Rewrite as a logarithmic equation. 10 = 2 Dlog O Olog0 No D=0 solution

How many mL of 0.779 M HNO3 are needed to dissolve 5.15 g of BaCO3? esc 1 F1 AAB 2 Q *** F2 W # 3 80 F3 E $ 4 000 000 F4 2HNO3(aq) + BaCO3(s) Ba(NO3)2(aq) + H₂O(l) + CO₂(g) R Cengage Learning | Cengage Technical Support % er oo 5 F5 MacBook Pro T A 6 F6 & 7 Y F7 mL * DII U F8 8 DO 9 1

Beyond the Course: Your beverage company is branching out from added sugar in their beverages to make a drink where the main ingredient is fresh-squeezed orange juice, called Beverage C. Yum! The beverage will still be subjected to the same taxes as Beverages A & B, so determining sugar content is still vital. Suggest a method of reliably examining the sugar concentration in each batch of Beverage C. Some considerations to address: Do you want to measure the same property for Beverage C as you did for Beverages A & B? ● Can you use the same calibration curve as you did for Beverages A & B? Describe the considerations you made when determining your method.

To accurately prepare a standard solution, the correct glassware must be used to perform the dilution. What glassware is required to prepare a standard solution from a solid? Choose the most correct answer. beaker, conical flask, Pasteur pipette (dropper) beaker, volumetric flask, conical flask beaker, volumetric flask, Pasteur pipette (dropper) Pipette, volumetric flask, Pasteur pipette (dropper) beaker, measuring cyclinder, Pasteur pipette (dropper)

Please give me answers in 5min I will give you like sure

Water is the solvent of choice to separate a mixture of adipic acid and salicylic acid because it dissolves both substances easily. Group of answer choices True False

For results/conclusions Using the images attached Write 2 paragraphs 1st paragraph: Starts with Objective. Results of DeltaT and i stated 2nd paragraph: sources of errors discussed The objective is The colligative properties are the properties that undergo a change when a solute is introduced to a solvent. Freezing point depression is also a colligative property. The addition of a solute to a solvent reduces the freezing point of the resulting solution. The freezing point of the solution is always lower than the freezing point of the solvent. This difference in the freezing point between solvent and solution is called freezing point depression. The freezing point depression is directly proportional to the molality of the solution or the number of moles of solute present in the solution.