1. Consider a KCI (aq) solution that has a mass percent of 8.98 %. How many grams of KCl are there in 100. grams of this solution? a) Write your answer above as a conversion factor. b) Use the conversion factor from part a) to find out how many grams of KCI are there in 38.2 g of this solution.

Describe how to prepare 0.250 L of 0.600 M HCl solution, starting with a 2.00 M HCl solution. What volume (in L) of the 2.00 M solution will you need? Round your answer to 3 significant digits. L x10 X Ś 00 E olo A KI

Based on this. What was the percentage by mass of water in the sample?

How much 20.0% NaOH should I put in a 30.0 ml tube if my dilution ratio is 1/10. What is the concentration of the tube. ml of 20.0% Just put the number of mL Do not enter anything but a number. Use correct sig figs. Remember ratios and conversion factors do not enter the significant figure calculation. What is the concentration in percent. Again, correct significant figures. NUMBERS only not the % sign

When answering this problem, report the answer with the appropriate number of significant figures. Enter your answer USING scientific notation. When entering units, use proper abbreviated units with proper capitalization. In this experiment, a series of solutions are prepared by combining multiple components into a single container. One solution prepared contains 5.00 mL of 0.010 molar KI, 10.00 mL of 0.0010 molar Na2S2O3, 15.00 mL of water, 10.00 mL of 0.040 molar KBrO3, and 10.00 mL of 0.10 molar HCl.  What is the concentration of iodide ions in this solution? Answer: ____x10______units

A chemist needs 19.89 mL of 1.36 M NaOH. What volume in mL of 3.29 M NaOH must be diluted in water to form this solution? lease report your answer in mL  to 2 decimal points with no units.

Sample 1 Sample 2 Sample 3 Mass of Erlenmeyer Flask (g) 24.33 24.37 24.44 Mass of Erlenmeyer Flask + Calcium Hydroxide Solution (g)   (g)(lime water) 27.22 27.29 27.33 Mass of Calcium Hydroxide Solution (g) 2.89 2.92 2.89 Volume of Ca(OH)2 Density = 1.000 g/mL 2.89 2.92 2.89 Concentration of HCl (M) 0.1 0.1 0.1 Initial HCl Volume in Syringe (mL) 1.00+1.00 1.00+1.00 1.00+1.00 Final HCl Volume in Syringe (mL) .72 .66 .54 Volume of HCl Delivered (mL) 1.28 1.34 1.46 Moles of HCl Delivered       Moles of OH- in Sample       Moles of Ca2+ in Sample       Molar Solubility (M)       Calculated Ksp       Average Calculated Ksp       I am very confused how to solve the blank spots in the table. Everything including and after "Moles of HCl Delivered" confuses me. Please help me figure out how to solve the sections correctly. Also feel free to…

What is the percent by mass NaCl of a solution that contains 56.0 grams of BeO and 138.0 grams of water? Round your answer to 1 decimal. Your Answer:

A solution is made using 200.0 mL of methanol (density 0.7920 g/mL) and 1185.1 mL of water (density 1.000 g/mL). What is the mass percent of the methanol?

help pls