To make a 0.5L of 2% NaCl, weigh _____ grams of NaCl, place in a graduated cylinder, and add water to make the total volume _____ mL

Question 1  Question 1 options:Solutions are defined as ____ mixtures. Solutions are comprised of the______ ,which is the medium in which the other components are dissolved, and the ______, which is the component that is present at a much lower concentration.   Question 2 What two units make up molarity? Question 2 options:   Question 3  We can convert from mL to L by moving the decimal point three places to the right. Question 3 options:    True    False Question 4 A dilute solution is made with the same number of moles of solute, but a small volume of solvent. Question 4 options:    True    False   Question 5  Write out the mathematical relationship that is used for solving dilution problems.      Question 6 The concentration of a diluted solution should be  (higher or lower) than the original concentration. Question 6 options: higher lower

Determine the final volume needed when 15.0 mL of a 7.50 M solution is diluted to a final concentration 5.00 M.   please enter volume as numbers only - NO UNITS.  Use the correct number of significant figures. Final volume:   __ mL How much solvent should be added to the stock solution?  __ mL

Profiles 202 X sac/10062554#/10062554/7/-1 hment Score: 3 ion 8 of 10 > Macmillan Learning F3 Tab Window Help E Experiment 11 - Per X D tv mass of KBr : mass of water: C 78.8% $ 4 85 A 0.600 m aqueous solution of KBr has a total mass of 88.0 g. What masses of solute and solvent are present? Q F4 R FO % 5 V F5 11_Melton_Keely - x | T 6 34,121 X MacBook Air F6 Y G I H 5 & 7 B N F7 #06 NEW U 8 Resources W M DII F8 1 K X X ( 9 H F9 0 48% Question 8 of Give Up?. L -0 (((( F10 P V 1 I command option Reminders pill Hint 10 F11 a 8 [ ? 1 + 11 Ch }

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5) If all the NaHCO3 in bag 2 reacted, calculate the number of moles of gas produced? tates) E Focus

scaling up Solutions Sometimes we know the concentration of a solute but we need to make a larger volume of the solution. Example: An IV saline solution is based on 0.9% NaCI = 0.9g/100mL (dL). To make 1L of the same concentration (0.9%), how many grams of NaCl would we need? Hint: first convert mL or dL to L. Next, to get from our original volume of 0.1 L to our desired volume of 1L, we need to multiply by a factor of 10. If we want to keep the concentration of this solution the same (0.9%) we will also need to multiply the amount of solute by the same factor of 10. Molar Ratios and Chemical Equations The concept of the mole is useful in chemical reactions. Molecules react in molar ratios which are expressed in equations. Neutralization of an Acid Example: HCI + NaOH → NaCI + H2O This equation says that 1 mole of acid is neutralized by 1 mole of base to produce 1 mole of salt and 1 mole of water. Since a mole is the MW in grams, then you can calculate how much base you need to to…

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

Question 2 of 40 Submit How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) X 1 3.5 0.94 18 350 6.022 x 1023 100 5.2 94 0.052 0.0094 %m sucrose g solution g sucrose

5. What molarity will 25 grams of glucose (C,H1206) and 300 mL of water make? 86 words Comments... Cancel Submit Assignment 山T@ OCT tv MacBook Pro