Please answer items 4-7 only asap please thank you Answer the following problems:There are 15 g of CUNO3 dissolved in 250 mL of water. What is the % by mass of thesolution?2.4.5.6.7.If you want to make a 500alcohol are neededsolution f 85% ethyl alcohol. How many cm³ of ethylHow much water is needed to prepare a 0.77 M AgNO3 if there are 20 g of this nitrate?Calculate the concentration of 12.00 g FeBr3 in 250 cm³.How many moles are there in a 20 cm³ sample of 4.0 mol/dm³ KCL?Calculate the concentration of 20.0 g NaOH dissolved in 250 cm3 of water.2.00 grams of MgO was reacted with 250 cm³ excess H₂SO4. Calculate theconcentration of MgSO; produced.

Molarity or molar concentration is defined as the number of moles of solute per liter of solution.…

4. 5. 6. 7. Calculate the concentration of 12.00 g FeBr3 in 250 cm³. How many moles are there in a 20 cm³ sample of 4.0 mol/dm³ KCI? Calculate the concentration of 20.0 g NaOH dissolved in 250 cm3 of water. 2.00 grams of MgO was reacted with 250 cm³ excess H₂SO4. Calculate the concentration of MgSO4 produced.

4. 5. 6. 7. Calculate the concentration of 12.00 g FeBr3 in 250 cm³. How many moles are there in a 20 cm³ sample of 4.0 mol/dm³ KCI? Calculate the concentration of 20.0 g NaOH dissolved in 250 cm3 of water. 2.00 grams of MgO was reacted with 250 cm³ excess H₂SO4. Calculate the concentration of MgSO4 produced.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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