d) Calcium ions (Ca) are present at relatively low concentrations (~100nM) within the cytoplasm of human cells. How many molecules of calcium are present in 1L of a 100nM solution?

Q: What is the molarity of a solution that contains 28 g of NaNO3 in 3.2 L of solution?

A: Given:Mass of NaNO3 = 28 g.Volume of NaNO3 solution = 3.2 L

Q: Complete the table below, so that it lists the initial molarity of each compound, the change in…

A:

Q: If 1.5234 grams of H2C2O4·2H2O is dissolved in water to prepare a 0.250 L solution, what is the…

A: Formula to calculate molarity:                        Molarity=mass of solute(g)molar mass of solute…

Q: What is the molarity of a solution that contains 3.0 g KNO3 in 0.625 L of solution?

A: The molarity of the solution is defined by the mole of solute present in one liter of solution. The…

Q: What mass (measure in g) of copper sulfate is required to prepare 80.0 mL of a 0.300 M solution?…

A:

Q: How many molecules of sucrose are contained in 14.3 mL of 0.140 M sucrose solution?

A: given : 14.3 mL of  0.140 M sucrose . we need fo find out the molecules of sucrose? first we need fo…

Q: 2) 12.5g Of glucose (C6H1206) is dissolved in enough water to make 750.0 mL of solution. a) What Is…

A: Given Mass of glucose = 12.5 g Volume of solution = 750 ml standard value molar mass of glucose…

Q: A solution contains 40g of common salt in 340g of water.calculate the concentration in terms of mass…

A: Concentration of solution in terms of mass by mass percentage is given as, Concentration of solution…

Q: How many moles of NaOH are present in 27.5 mL of 0.130 M NaOH?

A: Molarity: moles of solute dissolved in one litter solution. With the help of molarity, we calculate…

Q: If 86.554 g of a C,H,O-water solution contains 7.864 g of C,H,O, then how many kilograms, kg, of…

A:

Q: what is the molarity of  a solution that contains 3.0 g of KNO3 in 0.625L of a solution?

A: Given, amount of KNO3 =3.0 gvolume of solution =0.625 Lwe are asked to calculate the molarity of the…

Q: Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/mL. What is…

A:

Q: How many moles of glucose (C6H12O6) are in 250. mL of 0.123 M glucose?

A:

Q: 3. Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/mL. What…

A:

Q: Consider a solution of glucose in water that is 5.25% by mass glucose. Calculate the indicated…

A: mass percent formula is used to determine the strength of solution using mass of solute and solvent.…

Q: How many grams of glucose (C6H12O6, 180.16 g/mol) would be required to prepare 2.50 L of a 0.278 M…

A: The number of moles of glucose can be calculated as follows-

Q: What is the mass percent ethanol in a solution prepared by dissolving 17.2 g of ethanol in enough…

A: Given weight of ethanol is 17.2 g  Given weight of solution is 149.0 g .

Q: How many moles of NaCl would you need to prepare 400mL of a 1.20 M solution of sodium chloride?

A: Molarity = moles / volume of solution in liters  1 ml = 10-3 L Molarity = mole/liters (unit…

Q: How many moles of ionic species are present in 1.0 L of a solution marked 1.0 M mercury(I) nitrate?

A:

Q: Calculate the molarity of a solution containing 5 g of NaOH in 450 mL solution? Note molar mass for…

A: The given data contains, mass of NaOH = 5 g. Volume of solution = 450 ml. = 0.45 L. molar mass of…

Q: When sugar is dissolved in water, the result is a(n) solvent solute aqueous solvent O aqueous…

A: A solution is defined as a homogeneous mixture of two or more substance. While a homogeneous mixture…

Q: What is the molarity of a solution which contains 85.00 grams of sodium nitrate dissolved in 2.00 L…

A: Mass of sodium nitrate given = 85.00 g The volume of the solution = 2.00 L Molar mass of sodium…

Q: How many moles of LiBrO3 are required to prepare 1.66 L of a 0.700 M solution?

A: Given,  Volume = 1.66 L  Molarity = 0.700 M  Number of moles = ?

Q: A solution is prepared by dissolving 15.7538 g of hemoglobin (64,458 g/mol) in enough water to make…

A: Molarity is equal to the number of moles of solute dissolved in per liter of solution. It is denoted…

Q: What mass of a 1.1 %NAOH solution by mass contains 32.4 g of NaOH?

A: A numerical problem based on mole concept, which is to be accomplished.

Q: Consider 0.950 solution of NaCl (molar mass=58.44 g/mol) how many moles of NaCl are in 161.5 mL of…

A: The molarity of NaCl solution is = 0.950 M The molar mass of NaCl is = 58.44 g/mol The volume of the…

Q: What mass of KCl is contained in a 3.00L of solution that has a molarity of 1.50M ?

A: Given :- molarity of solution = 1.50 mol/L                Volume of solution = 3.00 L  To calculate…

Q: present

A: Dear student I have given answer to your question in the image format.

Q: what mass of sodium hydroxide, NaOH, is required to prepare 250.0 g of solution that is 8.00% NaOH…

A:

Q: What is the molarity of a solution that is made by dissolving 3.86 g of sucrose in sufficient water…

A: Molarity: The concentration for solutions is expressed in terms of molarity as follows,

Q: How many grams of HNO3 are in 78.8 g of a solution that 23.1 % HNO3 by mass?

A: Given : % by mass of HNO3 = 23.1 And Mass of solution = 78.8 g

Q: If 0.0476 mol CaCl2 is dissolved in water to make a 0.380 M solution, what is the volume of the…

A: The molarity of the solution is = 0.380 M Mole of solute is = 0.0476 mol The volume of the solution…

Q: Upon decomposition, a sample of sodium bicarbonate produces 0.0118 g of sodium carbonate, Na2CO3.…

A: Given that, a sample of sodium bicarbonate (NaHCO3) decomposed to produce 0.0118 g of sodium…

Q: is the importance of identifying the molar mass of a

A: The importance of molar mass of particular unknown solute in solution is to determine the…

Q: What is the molarity of a solution composed of 8.2 g of potassium chromate, K2CrO4 dissolved in…

A: Molarity :-  The number of moles of solute dissolved in one litre of solution is defined as molarity…

Q: If 0.0458 mol CaCl20.0458 mol CaCl2 is dissolved in water to make a 0.490 M0.490 M solution, what is…

A:

Q: What is the molarity of a solution that contains 67 g of NaOH in 253 mL of solution?

A: Given : Mass of NaOH = 67 g And volume of solution = 253 mL = 0.253 L…

Q: How many moles of NaOH are present in 29.5 mL of 0.160 M NaOH?

A: Definition: Molarity is a concentration term for a solution. The molarity of a given solution is…

Q: 2. How many grams of solute are present in 1.65 L of 0.286 M solution of C3H¬NO2?

A: To calculate the grams of solute first of all e calculate the moles of solute.  The molarity of the…

Q: What is the mass in grams of Na2CO3(s) (molar mass = 105.98 g/mol) that, when dissolved in 104 mL of…

A: Molar mass of Na2CO3 = 105.98g/mol Volume of water = 104mL Molarity ,M = 0M

Q: How many grams of NaCl are in a 5.89 mol/kg solution that was made from 979.5 g of water?

A:

Q: What is the mass in gg of 418 mLmL of ethylene glycol?

A: Introduction: We have to calculate the mass of ethylene glycol.

Q: What is the molarity of a solution that contains 23 g of NH3 in 0.50 L of solution?

A: Given, mass of NH3 = 23 g Volume of the solution = 0.50 L  Molarity of the solution = ? Note:  molar…

Q: What is the percent by mass of 86.3 g of sodium chloride dissolved in 918.6 g of water ?

A: The mass percent of a component present in the mixture is calculated by dividing the mass of that…

Q: Molarity is defined as the moles of solute in 1 Liter of solution. What is the molarity of 68g of…

A: GIVEN Mass of NiCl2=68 gmVolume of NiCl2=0.15 LTo Find: Molarity of NiCl2 in solution=? Solution: As…

Q: What is the molarity of a solution that contains 75.0 g of KNO3 dissolved in 0.350 L of solution?

A: Given, volume of the solution = 0.350 l weight of the KNO3 = 75.0 g Now convert, weight of the…

Q: Given that the initial volume is 0.500 L and the initial Molarity is 2.000 M, what is the Final…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: What is the molarity of a solution prepared by dissolving 3.50 mol NaCl in enough water to make 1.50…

A: Given: Moles of NaCl=3.50 mol  The volume of the solution = 1.50 L Molarity is defined as the number…

Q: The concentration of a water solution of NaCl is 2.48M, and it contains 806g of water. How much NaCl…

A: