9 grams of NaCl are dissolved in 99 grams of water in a 2.0 L container. What is the mass percent of NaCl? Report your answer to 1 decimal place.

Calculate the volume in milliliters of a 1.15 M iron(III) bromide solution that contains 75.0g of iron(III) bromide FeBr3 . Round your answer to 3 significant digits.

Please put the correct number of significant figures. Thank you

A chemistry student needs 60.0 g of 4-methyl-2-pentanone for an experiment. He has available 120. g of a 24.3% w/w solution of 4-methyl-2- pentanone in acetone. Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button. Round your answer to 3 significant digits. 0 x10 X No solution S

A chemistry student needs 30.00 g of thiophene for an experiment. He has available 0.20 kg of a 39.3% w/w solution of thiophene in diethyl ether. Calculate the mass of solution the student should use, If there's not enough solution, press the "No solution" button. Round your answer to 3 significant digits. No sokution

A chemistry student needs 20.0 g of thiophene for an experiment. She has available 1.5 kg of a 6.84% w/w solution of thiophene in carbon tetrachloride. Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button. Round your answer to 3 significant digits. No solution x10

A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 9.9 mg of magnesium fluoride into a 350. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's magnesium fluoride solution. Round your answer to 2 significant digits. mol L x10 ? Explanation Check O 2022 McGraw Hill LLC All Rights Reserved. Terms of Use Privacy Center Accessiblty 80 F Cloudy DELL PriScr Delete Insert F11 F12 F5 F6 F7 F8 F9 F10 F1 F2 F3 F4 Hum. Lock 44 Backspace & 8. %24

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Your supervisor gave you a 5% saline (NaCl) solution. You need to make 100 mL of 1.0% saline solution. How much 5% saline would you take to complete the task?

Ocean water contains 3.5  %   NaCl  by mass. What mass of ocean water in grams contains 48.8  g  of  NaCl ?        Express your answer in grams to two significant figures.