-5 Calculate the volume in liters of a 7.21 x 10 °uM zinc oxalate solution that contains 200. g of zinc oxalate (ZnC,0,). Round your answer to 3 significant digits.

Question 7.) Calculate the mass of water needed to make a 10.0% solution using 5.25 grams of sodium hydroxide. Choose the answer with the appropriate significant figures and choose the correct unit. Choices: 0.0190, 23.7, 0.0211, 47.3, 52.2 Units:  mg H2O, M HO2, % H2O, g HO2, g H2O

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A potassium hydroxide (KOH) solution is 44.0% KOH by mass and has a density of 1.43 g/mL at 20oC. What is the molarity of this KOH solution? (Round your answer to 3 significant figures.)

n 트 O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume V Calculate the volume in milliliters of a 3.84M sodium nitrate solution that contains 50.0 g of sodium nitrate (NaNO3). Be sure your answer has the correct number of significant digits. Microsoft O W shift Microsoft 0 tab mL Microsoft 6.52.210... esc caps lock Explanation 1 (8 Q A Z 2 control option Check @ 2 W 340 #3 X S D H X command E NOV 14 $ 4 C S R E F 07 dº % 5 V T stv MacBook Pro 6 G Y & 7 H Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility U B N * 8 J A "7 ****** M ( 9 < K O W H L P 3/5 V O WE { DOCX + 11 [ I command option } C A 1

An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1900M NAOH solution. When the titration reaches the equivalence point, the chemist finds he has added 18.5 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. x10 mol

A 5.0 LL sample of a 6.3 MM NaClNaCl solution is diluted to 75 LL .     Part A What is the molarity of the diluted solution?         Express your answer using two significant figures.       nothing MM