calculate the mass percent of your solution. show your calculations

100 90 NANO 80 70 CaCl, Pb(NO,)2 60 50 40 KCI NaCI 30 20 KCIO, 10 Ce,(SO); 10 20 30 40 50 60 70 80 90 100 Temperature (°C) How many grams of CaCl2, are soluble in 100 g of water at approximately 17 °C? 70 grams 12 grams 58 grams O grams Solubility (g of salt in 100 g H,O) SONY K,Cr,O,

My teacher says the answer is 0.84 M, but how?

A student follows a lab protocol that asks them to make an ‘alcohol’ solution for an experiment. They make a 1.00 L solution by adding 575 g of an alcohol to water. Later they realize that there were three different alcohols sitting on the lab bench and they’re not sure which one they used. The alcohols are: methanol (CH3OH), ethanol (C2H5OH), and butanol (C4H9OH). They decide to boil the solution and they find that it boils at 106.40 °C. Using this information determine which alcohol the student used to make their solution. Density of water is 1.00 g/mL, Kb = 0.513 K/mc. Hint: you need to consider the molar masses of your alcohols.

4.84 mL of a dark blue solution with a dye concentration of 15.72 %m/v is diluted to a total volume of 140. mL. What is the new concentration of the solution in units of %m/v? Do not include units in your answer.

A 9.0 mL sample of a 42.0 % (m/v) acetic acid (HC2H3O2) solution is added to water to give a final volume of 48 mL. Express your answer to two significant figures and include the appropriate units.

Use only 1 decimal point (X.X) for atomic weights. What is the molarity of 16.1 grams of lithium hydroxide dissolved to 200.0 mL of solution?

Equal volumes of Solutions 2 and 3 were mixed in the lab. Suggest a measurement that could be made in the lab to provide evidence that a chemical reaction occurred when Solutions 2 and 3 were mixed.

A solution consists of 35.00 g of CuSO, dissolved in 250.0 mL of water. The molar mass of Cu is 63.55 /mol, the molar mass of S is 32.07 /mol, and the molar mass of O is 16.00 /mol. What is the molarity of the solution? Show your work. PENCIL THIN BLACK 中

Give the mass of the solute and mass of the solvent for 1.30 LL of a solution that is 17.0 %% of Pb(NO3)2Pb(NO3)2 by mass (the density of the solution is 1.16 g/mLg/mL), starting with solid solute. Express your answers using three significant figures. Enter your answers numerically separated by a comma.