Please make the answers simple , thanks : Describe how you would make the follow
ID: 831413 • Letter: P
Question
Please make the answers simple , thanks :
Describe how you would make the following solutions. Calculate the % w/v for each of the following. 623 mg of casein dissolved in 15.0 mL of milk 74 mg of vitamin C dissolved in 250. mL of orange juice. 3.25 g of sucrose (table sugar) dissolved 186 mL of coffee Describe how you would make 250. mL of a 0.10 M solution of NaOH from solid sodium hydroxide and water. Describe how you would make the following solutions. 175 mL of a 1.14 M NH4Br solution in water 1.35 L of a 0.825 M Nal solution in water 330. mL of a 0.16 M solution of ethanol (C2H5-OH) solution in water What is the morality of each of the following solutions? 47 g of KCI dissolved in 375 mL of solution 82.6 g of sucrose (C^H^O,,) dissolved in 725 mL of solution 9.3 g of (NH4)2S04 dissolved in 2.35 L of solution A teardrop with a volume of 0.5 mL contains 5.0 mg NaCI. What is the morality of NaCl in the teardrop? The concentration of stomach acid, HCI, is approximately 0.10 M. What volume of stomach acid contains 0.25 mg of HCI? if 3.18 g of BaCI2 is dissolved in enough solvent to make 500.0 mL of solution, what is the morality? The label on ajar of jam says it contains 13 g of sucrose (C^H^O,,), table sugar, per tablespoon (15 mL) of jam. What is the morality of sucrose in the jam? A particular toothpaste contains 0.17 g NaF in 75 mL of toothpaste. What are the %w/v and the morality of NaF in the toothpaste? A student has a bottle labeled 0.750% albumin solution. The bottle contains 5.00 mL of solution. How much water must the student add to make the concentration of albumin become 0.125%?Explanation / Answer
a.3.6% w/v = 3.6 g / 100 ml, so you need 3.6*2.5 = 9 g of nacl & 250 ml of water
b.same way 4.9*6.25=30.625 g
c..435*13.7=5.9595 g
d. 5.18*2.1=10.878 g
a.w/v=.623/15*100=4.15per
b w/v=.74/250*100=.296 per
c..00325/186*100=.00174per
48.n=M V=.1*.25=.025 mol w=.025 mol*40 g/mol=1 g
49.a. w=.175*1.14*97.94=19.53
b1.35*.825*149.89=43.28
c..33*.16*342.29=18.07
50.a 47/.375/74.55=1.68M
b.82.6/46/.725=2.477M
c.9.3/132.14/2.35=.0299M
51.MOLARITY=MOL/VOL=5/58.44/.5=.17M
52..25/36.46/.1=.0685L
53.3.18/208.33/.5=.0305 M
54.18.84M
55..2266 PER
56.25ml