Ross attempted to titrate 30.0 mL of NaOH solution with 1.0 M HCl solution. The flask of NaOH solution contained 0.00300 mole of NaOH. Ross carelessly added 5.0 mL of HCl solution to the NaOH and observed blue litmus paper in the flask turn pink. What was the hydrogen ion concentration in the flask after all the HCl was added?
A
1.0 × 10-7 mol/L

B
2.0 × 10-3 mol/L

C
5.7 × 10-2 mol/L

D
6.7 × 10-2 mol/L

Chemistry do these i am so stressed i have 14 essays due tomorrow

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)