stologlst wants to make 800mlL of 0.03M HCI by diluting a 6M HCI stock solution.
ID: 189523 • Letter: S
Question
stologlst wants to make 800mlL of 0.03M HCI by diluting a 6M HCI stock solution. How many ml of the stock HICl solution should be . Answer to 1 decimal place Read about significant figures and rounding in the Helpful Resources pagel . Do not include units when reporting your answer : Use standard notation or scientific notation as accepted by blackboard . e.g. 0.001 or 1E-3, not 1 x 10-3 UESTION 8 A chemist starts with 64mL of a 0.6M NaCl solution and dilutes it to 1,000mL. What is the Molar concentration of NaCl in the new solutio Answer to 3 decimal places . Read about significant figures and rounding in the Helpful Resources pagel . Do not include units when reporting your answer Use standard notation or scientific notation as accepted by blackboard . e.g.0.001 or 1E-3, not 1 x 10-3 QUESTION 9 Click Save and Submit to save and submit. Click Save All Answers to save all ansversExplanation / Answer
1. M1 = 6M
V1 = ?
M2 = 800 mL
V2 = 0.05M
M1V1 = M2V2
V1 = M2V2 / M1
= ( 800 ) ( 0.05 ) / 6
= 6.7 M or 6.67 mL
2. M1 = 0.6 M
V1 = 64mL
M2 = ? mL
V2 = 1000 mL
M1V1 = M2V2
M2 = M1V1 / V2
= ( 0.6 ) ( 64 ) / 1000
= 0.0384 M or 0.038 M
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