Match the concentration with the appropriate statement.    Question : 123456 30 g of NaCl in 500 mL of solution 123456 125 g of copper (II) sulphate in 500 g of water 123456 46 g of NaOH in 100 mL of water 123456 3 mL of hydrogen peroxide in 10 mL of water 123456 5.25 g of AgNO3 in 50 g of water   1. 1.03 M 2. 10.5% (M/M) 3. 25% (M/M) 4. 30% (V/V) 5. 46% (M/V) 6. 5.25% (M/M)

Are these correct? The top page of the second paper is the second problem.

8.43 How would you prepare 250 mL of a 0.225% (m/v) NaCl solution from a 0.90% (m/v) NaCl stock solution?

How many mL of 0.146 M NaC2H3O2 are needed to supply 15.7 g NaC23O2 ? Answer in mL

A chemist prepares a solution of silver perchlorate (AgCIO4) by measuring the mark with water. Calculate the concentration in mol/L of the chemist's silver perchlorate solution. Be sure your answer has the correct number of significant digits. mol/L Explanation Check X 79.5 g of silver perchlorate into a 50. mL volumetric flask and filling the flask to Ś Graw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Access

What is the concentration in v/v% for 250. mL of solution contains 16 mL of acetone. (3 SF)

What mass of Na2CO3 is present in 0.500L of a 0.417M solution? Group of answer choices 44.2 grams 127 grams 88.3 grams 22.1 grams

Run 2 Run 1 Molarity of KMNO4 solution (M) from 0.0010 0.0010 bottle Final reading of buret (KMNO4) (mL) 14.91 7.77 Initial reading of buret (KMNO4) (mL) 0,30 7.81 Volume of KMN04 solution (mL) Moles of MnO, used for titration (mL) Moles of C2042- in 100.0 mL of solution (mol) Molarity of C2042 (M) Molarity of Cd2+ (M) Ksp of CdC204

For the following reaction:H2CO3 + 2 NaOHNa2CO3 + 2 H2O(1) What is the equivalent mass of H2CO3?  g/equiv(2) Calculate the number of equivalents in 27.1 grams of H2CO3.  equiv

If an aqueous solution is 3.11% (w/v) in sodium hydroxide, NaOH  how many grams of sodium hydroxide are there in a liter of solution?  _____g